Emergency plan for safety production of concrete company

emergency plan for safety production of concrete company 1

In order to ensure the mixing quality of concrete and the orderly construction and production, in case of sudden situations such as rainstorm, unexpected water cut-off, power failure or mechanical equipment failure, the emergency plan of this mixing station is specially formulated to ensure the normal supply of concrete and the normal operation of the mixing station. When the following situations occur, the emergency plan should be started immediately.

personnel composition:

set up an emergency leading group

team leader: stationmaster

deputy team leader: chief dispatcher

team members: all managers of the mixing station

The leading group office is located in the dispatching room, and the personnel on duty in the dispatching room are responsible for the work command of the emergency plan on that day.

1. When there is a sudden rainstorm during normal production, start the rainstorm emergency plan

1. Dispatcher on duty should communicate with the site in time on the rainstorm situation to do a good job of on-site handling, and inspect whether the colored steel tiles of the silo and hopper are in good condition and whether there is water leakage and rain everywhere;

(2) Pay attention to the slump and workability of each plate of concrete during the quality inspection on duty, drain the water again after the concrete tanker waiting in line for receiving ash arrives at the discharge port and before receiving ash, and check that the hopper of the delivery vehicle is equipped with rain-proof cloth in time;

(3) the operator should retest the water content of coarse and fine aggregate in time, and adjust the mixture ratio in time according to the change of water content; (4) the mixing driver should pay attention to the monitor to observe whether there is rain leakage in the bunker, the change of sand and gravel < P > material on the inclined belt during the feeding process and the change of concrete slump;

(5) safety personnel timely check whether the lightning protection equipment of the mixing station is in good condition;

⑥ The stationmaster shall patrol the whole mixing station in time and check the operation of the machinery, and take responsibility for each other and stick to their posts; ⑦ The chief dispatcher shall coordinate with the person in charge of the construction site in time on the inside and outside of the station to ensure that all work is carried out in an orderly manner.

Second, start the rainy day emergency plan

① The stationmaster will patrol the whole mixing station, and the personnel in each post will take their own responsibilities to ensure that all the work is carried out in an orderly manner and the mixing station is in normal production and operation;

(2) The material collector of the weighbridge house ensures that the vehicles for feeding and transporting materials are cleaned before entering the site to prevent dirt and other pollutants from being brought in;

(3) the experimenter randomly checks the water content of coarse and fine aggregates at any time, and adjusts the mixture ratio in time to ensure the mixing quality of concrete.

(4) pay attention to observe the slump and workability of each plate of concrete when it leaves the machine during the quality inspection on duty, and if necessary, check the concrete mixed in each tank;

(5) the mixing driver should pay attention to whether there is water leakage in the inspection bunker, the change of sand and gravel on the inclined belt during the feeding process, and the change of concrete slump;

III. Start the emergency plan for water cut-off in case of sudden water cut-off in normal production

(1) Two production lines are equipped with an underground water storage tank with a water storage capacity of 7t and a standby water storage tank with a water storage capacity of 2t. Before production, the water storage tank and standby water storage tank of the mixing station are controlled by the automatic control system, and the water tanks are in a full state; At the same time, when the two water tanks are pumped or the rated water storage level changes, the control system starts to work and continuously store water until the water tanks are full.

(2) The water consumption of concrete is about 14kg, and two production lines are running at the same time. The normal production capacity is about 126m3/h, and the water consumption per hour is about 17.6t t.. In case of sudden water failure during construction, the water storage in the mixing station pool and the water storage in the standby water storage tank can meet the requirement of producing 19m3 of concrete, which can ensure the normal production in one day and the time required for emergency repair and troubleshooting.

IV. Start the emergency plan for standby power supply in case of sudden power failure in normal production

(1) In case of sudden power failure in normal production, the relevant person in charge on duty should immediately contact the production dispatcher or the electrician on duty at the site, and the electrician on duty should arrive at the power transformation and distribution room as soon as possible to find out the cause of power failure (meanwhile, the electromechanical class should arrange the generator driver to be in place and make preparations before power generation), so as to distinguish whether the external power grid is out of power or the power distribution facilities are out of order. In case of external power failure, it will be arranged by the production dispatcher.

(2) The standby power supply in the station is two diesel generators with an installed power of 2KW, which supply power to the concrete mixing station during power failure. In order to ensure production, temporary power supply is generally not implemented for the office and living quarters.

(3) Before starting the standby power supply, the electrician should first cut off the isolation master switch in the main distribution cabinet, and the generator driver should check whether the various parts of the generator set are normal again. After it is confirmed, it should be started normally according to the generator operation rules. At this time, the generator driver and the electrician should check whether the parameters of each part are normal and have the power transmission conditions, and the electrician should switch the switch and send the power out.

(4) In order to ensure the normal and reliable operation of the standby power supply at any time, the Equipment Department has formulated the relevant standby power supply management system, implemented a strict management system for the generator set, and required the custody driver to carry out running-in maintenance once a week to keep abreast of the working conditions of the generator, and if there is any abnormal phenomenon, it will never be removed in time, and it will never run in spite of illness; In addition, before pouring the bridge every day, the driver should start the generator for 15 minutes one hour in advance to confirm whether the generator is normal.

(5) The mechanical and electrical class should plan the purchase of all kinds of spare parts every quarter according to the maintenance and repair of generator sets and concrete mixing stations every month to ensure the storage of wearing parts.

V. Start the emergency plan for standby equipment in case of sudden failure of key production equipment

(1) In the process of concrete production in the mixing station, the key equipment mainly refers to the concrete forced mixer. Other mechanical equipment has a large number of spare reserves and is easy to repair.

(2) There are two sets of production lines, one of which can be started during concrete pouring, and one of which can be used as standby, and the standby equipment can be started when unexpected mechanical failure occurs in the production process.

(3) Do a good job in the maintenance of key mechanical equipment at ordinary times. According to the maintenance and repair of equipment, the equipment department should make a monthly purchase plan for all kinds of accessories to ensure the storage of wearing parts. When the equipment stops due to failure, it must be repaired in time.

VI. Start the emergency plan for sudden fire

After a fire accident, different disposal methods and strategies must be adopted under the unified leadership of the emergency leading group according to the scale, degree of harm and different stages of the fire.

Pre-treatment: in the early stage of the fire, the scale is not large. At this time, we should quickly organize forces to rush to the scene to carry out fire fighting, and at the same time immediately report the size, situation, harm, on-site fighting situation and basic information such as personnel and materials to the leading group. According to the fire situation, we should call the fire alarm number 119 in time, get in touch with the electric power department and the hospital, and do a good job in information transmission. In the initial stage, we should give full play to the strength of the site personnel, put out the fire in time, and strive to eliminate the fire accident in the initial stage.

VII. Emergency plan for dust and admixture leakage in the mixing station

1. If dust is found to increase abnormally compared with normal production in the mixing station. Should immediately check whether there is damage to the dust removal equipment or the packaging part is damaged and leaked, and handle it in time. If the amount of dust can be used, spray dust reduction measures can be adopted.

2. After the admixture leaks due to aging, it should be replaced in time and the leaked part should be blocked. The leaked admixture is diluted with water and diverted to the sewage sedimentation tank. Prevent the admixture from causing secondary pollution to the environment. Emergency plan for production safety of concrete company 2

1. Basis for compilation

1.

2. the bureau headquarters issued a notice on further implementing the relevant provisions on centralized processing and centralized mixing.

3. Current building engineering design specifications, construction specifications, construction technical regulations, quality evaluation standards and acceptance methods.

4. Field investigation data, our company's construction experience, scientific and technological achievements, construction equipment and technical strength used in this project, etc.

II. Overview of the Project

This project is the expansion project of Kweichow Moutai, including the first and second phases of Huanshan Liquor Store and the starter-making project of 4, tons of Moutai in 2xx; Among them, the Huanshan distillery project is located in the southeast of Maotai Town, in the northeast of Houwan distillery, and south of Hanpoling-Yangwan, which is a part of the distillery planning of Maotai liquor "Twelfth Five-Year Plan" expansion project. The first phase project includes 22 wineries of 2 # ~ 23 # * *, and the second phase project includes 24#~49# wineries and 28 large and small office buildings. Its single building area is 749m2, 6629m2, 592m2, etc., with a total building area of about 331,45 m2, a building height of 15.3m and a total building height of 19.1 m; The structural form is a multi-layer frame structure; Plot No.7 is planned to build a 2xx 4,-ton starter-making project for Kweichow Moutai Co., Ltd., which is located on the south-east side of Maotai Distillery, next to the starter-making workshop of Workshop No.3 of Maotai Distillery, with a simple country road on the west side and a planned altar factory-Maotai express line (a first-class urban trunk road) on the east side, with convenient transportation after completion. It consists of 11 single buildings, such as No.1 ~ No.5 starter-making workshop, workshop office building, workshop canteen, No.1 ~ No.2 bath side, maintenance room and multi-storey garage, which are generally distributed in the northeast-southwest direction with a total construction area of 65,851 ㎡.

iii. Construction standard of temporary mixing station

In order to ensure the engineering quality, strengthen the safe and civilized construction on site, standardize the standardized operation on site, and improve the reputation of the enterprise, the mortar mixing station shall be arranged in a unified and reasonable way in strict accordance with the requirements of "four concentrations and six unifications", and the mortar mixing station shall be planned and arranged reasonably according to the requirements of standardized operation. The construction standards of temporary mixing station are as follows:

1. Requirements for mixing station site construction: The mixing station site must be hardened to meet the requirements of heavy vehicle load. After the site leveling is completed, ballast leveling shall be carried out according to the actual site conditions, and the thickness of ballast at soft foundation shall be appropriately thickened, and mortar shall be poured after the rolling leveling is completed.

2. Principle of mortar pouring: The mixing station area, yard and road should be driven by heavy vehicles, and the frequency is high. In addition to full leveling and rolling, it should be leveled after 25cm of gravel, and the thickness of mortar pouring should be thickened, with the thickness of 2cm and the mortar grade C2.

3. Before mortar construction, first plan the drainage system in the mixing station. The planning of the drainage system should be combined with the actual situation on site, and the drainage ditch should be excavated and built.

4. Take measures to store the cement, admixture and mineral admixture originally used for making mortar to prevent it from being affected with damp and deterioration. And make the logo complete, eye-catching and standardized.

5. Sand and gravel must be stored in different areas, and set up according to "qualified area" and "area to be inspected" respectively, and each area is effectively isolated by dividing walls according to different varieties and specifications. The sand and gravel in the "qualified area" shall be sheltered and protected by solid scaffolding, so as to achieve the purposes of sunshade, rainproof and dustproof, and avoid direct sunlight in summer, and at the same time, prevent dust and leaves from falling, and ensure that raw materials are not mixed with impurities.

6. Management of measuring instruments

All kinds of weighing instruments should be calibrated regularly (by the measuring institute under the local technical supervision bureau), and zero-point calibration should be carried out before each use on the construction site (by the full-time measurer on the construction site) to ensure the accuracy of weighing instruments.

after each use, the full-time measurer on the site shall wipe the weighing instrument with a clean rag and cover it with a waterproof cover; When it rains or the water content changes significantly, the professional foreman (builder) should increase the number of water content tests of coarse and fine aggregates and adjust the mixture ratio (the amount of water and aggregate) in time.

7. Control of measurement accuracy

In order to ensure the accuracy of mortar mixture ratio and the weighing of raw materials of mortar mixture ratio, the weight ratio is resolutely adopted, the volume ratio is strictly prohibited, and mechanical stirring is uniformly adopted, and the stirring time is not less than 12 seconds per plate. The allowable deviation of each weighing plate is as follows:

① Mortar mixture ratio:

The allowable deviation of each weighing plate of raw materials for mortar shall meet the following requirements: 3% for cement, 4% for fine aggregate (sand), 3% for plaster (fly ash) and 3% for water and additives.

② Mortar mixture ratio: the deviation of each plate of raw materials for mortar shall meet the following requirements: allowable deviation of cement and admixture is 2%, allowable deviation of coarse and fine aggregate is 3%, and allowable deviation of water and admixture is 2%.

iv. Organization of temporary mixing station

The temporary mixing station is directly constructed and managed by the project department. According to the actual situation of the project, the quality of the project construction is ensured, and the management of the temporary mixing station is strengthened according to the requirements of standardization. The project manager is responsible for the temporary mixing station, and the project chief engineer is in charge, and it is equipped with 1 professional engineer,

1 full-time quality inspection engineer, 1 full-time safety officer, 1 construction dispatcher and 2 professional workers.

V. Planning scheme of temporary mixing station

1. Overall planning and layout

According to the accounting, the daily mortar volume of Huanshan Wine Warehouse is about 5m3 and that of plot No.7 is about 4m3 during the peak construction period. Because the second phase of Huanshan Wine Warehouse (the first phase has been basically completed, so it is not considered now) is arranged in steps, and the height difference is large. Considering the on-site construction capacity, economic transportation distance, convenient material transportation and other aspects, due to the small site, according to the general plan, it is planned to establish a mixing station in the east of No.1 office building with an area of 5 ㎡. Two mixing stations will be built on plot No.7, and each temporary mixing station covers an area of 3㎡. A separate temporary mixing station will be set up for No.6 koji making, which will be arranged in the same way as the temporary mixing station of Huanshan Wine Store. See the floor plan for the specific location. The mixing station includes a mixing area, a weighing area, a material storage bin, a material screening area and a water pool. See the layout of the mixing station for details. Each mixing station in Huanshan Wine Warehouse is equipped with 1 JZC5 drum mixer, and each mixing station in Plot No.7 is equipped with 2 JZC5 drum mixers. Considering the time taken by the mixers for feeding and discharging and transportation, the output of each JZC5 drum mixer is 4m3 per hour, so as to ensure the uninterrupted supply of mortar during the construction peak period. Temporary small mixing stations need to be hung with signs such as operation procedures and safety precautions.

2. Site treatment of temporary mixing station

(1) The site of temporary mixing station shall be leveled in a large area, and the site leveling shall be carried out according to the principle of high in the middle and low around, so as to facilitate the smooth drainage of surface water and avoid water accumulation in the site.

(2) The road of temporary mixing station shall be hardened, with 2cm graded gravel or gravel paved below, and 15cm mortar poured on the top surface as the surface.

3. Drainage scheme for temporary mixing station

(1) The temporary mixing station is equipped with drainage ditches along the vertical and horizontal sides, with a net width of 3cm. The elevation of the top surface of the ditch and the elevation of the yard should be considered in a unified way. The bottom of the ditch is equipped with a drainage longitudinal slope of about .5%, which will lead all the water to the sewage treatment place and be discharged off the site after precipitation treatment.

(2) A culvert is set in the station to ensure that there is no water in the station when the rain is heavy.

4. Construction of temporary mixing station

(1) Installation of mixer

(1) Installation of mixer must be stable and firm, tires must be put on overhead or unloaded for separate management, and a rain-proof, smashing-proof or thermal insulation shed must be set up. The operation site should be kept clean, and a sedimentation tank should be dug outside the shed to eliminate the waste water from cleaning machinery.

② transmission mechanism, working device, clutch and brake should be fastened, flexible and reliable.