CN213300392U - Workshop air system for secondary lead production - Google Patents
Workshop air system for secondary lead production Download PDFInfo
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- CN213300392U CN213300392U CN202022219772.8U CN202022219772U CN213300392U CN 213300392 U CN213300392 U CN 213300392U CN 202022219772 U CN202022219772 U CN 202022219772U CN 213300392 U CN213300392 U CN 213300392U
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Abstract
The utility model discloses a workshop air system for secondary lead production, which comprises a plurality of ventilation openings arranged on the wall of a workshop, a primary treatment system for a crushing area, a secondary treatment system for a smelting area and a tertiary treatment system for a raw material and personnel passage area, wherein the primary treatment system, the secondary treatment system and the tertiary treatment system respectively comprise a main ventilation pipeline communicated with a main ventilator and a plurality of branch ventilation pipelines communicated with the main ventilation pipeline, each branch ventilation pipeline is provided with a plurality of exhaust fans and branch ventilation fans, the branch ventilation pipelines of the primary treatment system and the secondary treatment system are respectively provided with a plurality of gas collecting hoods which are communicated with the branch ventilation pipelines through local ventilation pipelines, and local ventilation fans are arranged in the local ventilation pipelines, thereby solving the problem that the prior art is not provided with an air treatment system specially used for high lead concentration, lead to the problem of high morbidity of occupational diseases such as lead poisoning of workers.
Description
Technical Field
The utility model relates to a secondary lead production technical field especially relates to a workshop air system for secondary lead production.
Background
At present, equipment in the processes of raw material storage, crushing, acid discharge, separation, drying, smelting, ingot casting and the like is often arranged in the same workshop without independent separation in the production of secondary lead, lead-containing smoke dust is generated from the decomposition of a waste lead-acid storage battery, lead dust is generated in the smelting of the secondary lead, the raw material storage, a battery feeding temporary discharge area, a crushing area and the like, the lead dust has high density and is not easy to be collected by a ventilation system which is designed conventionally, and the lead dust is discharged into a secondary lead workshop to cause the lead dust concentration in the workshop to be too high, lead dust emission exceeds the standard, and the workshop environment is polluted; the waste acid generated from the waste lead acid storage battery flows to various facilities in a workshop along with the turnover of the crushed materials, and gases such as carbon dioxide and sulfur dioxide are hidden in each corner.
Lead is a toxic metal with great harm to human bodies, lead and compounds thereof can cause harm to a plurality of systems such as nerves, hematopoiesis, digestion, kidneys and the like after entering the human bodies, and lead poisoning can be caused due to high lead content. Air in the workshop is not circulated, so that the health of workers is greatly influenced, and the incidence of occupational diseases such as lead poisoning of production and operation workers is high.
In the prior art, an air treatment system specially used for lead-containing lead dust does not exist, and particularly in a workshop with a large yield of secondary lead, the air in the workshop is not circulated, so that the health of workers is seriously harmed.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a workshop air system for secondary lead production has solved not be used for specially among the prior art and has contained the air treatment system that lead concentration is high, leads to the problem of occupational disease morbidity such as workman's lead poisoning height.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
providing a workshop air system for secondary lead production, which comprises a plurality of ventilation openings arranged on the wall of a workshop, a first-stage treatment system for a crushing area, a second-stage treatment system for a smelting area and a third-stage treatment system for a raw material and personnel access area;
the first-stage treatment system, the second-stage treatment system and the third-stage treatment system respectively comprise a main ventilating duct communicated with the main ventilator and a plurality of branch ventilating ducts communicated with the main ventilating duct, and each branch ventilating duct is provided with a plurality of exhaust fans and branch ventilators;
the branch air ducts of the first-stage treatment system and the second-stage treatment system are provided with a plurality of gas-collecting hoods which are communicated with the branch air ducts through local air ducts, and local ventilators are arranged in the local air ducts.
Furthermore, in order to better realize the purpose of ventilation without dead corners in a workshop, the number of the branch ventilation pipelines is three.
Furthermore, each branch air duct is provided with two branch ventilators, and the two branch ventilators are distributed at two ends of the branch air duct. Two branch air ventilators are placed in each branch air pipeline to achieve the purpose of air supply, and devices such as a gas collecting hood and an exhaust fan are installed within the air supply distance to enlarge the air suction range, so that workshop air in a larger range can be absorbed, and the purpose of ventilation is achieved.
Furthermore, in order to enable the polluted gas at the pollution source to rapidly enter the ventilation pipeline, six gas-collecting hoods are arranged on the branch ventilation pipeline of the primary treatment system, and the six gas-collecting hoods are positioned on the same branch ventilation pipeline.
Furthermore, a gas collecting hood is arranged on a branch ventilating pipeline of the second-stage treatment system.
Furthermore, the branch ventilating duct of the first-stage treatment system is I-shaped, the branch ventilating duct of the second-stage treatment system is reversed in shape, and the branch ventilating duct of the third-stage treatment system is L-shaped.
Furthermore, the main ventilator is a centrifugal ventilator, and the local ventilator and the branch ventilator are axial-flow ventilators.
Furthermore, in order to avoid the lead-containing gas from being discharged in a mode other than a ventilating pipeline and other gases outside the workshop from entering the workshop in the dust removal process, the dust removal device also comprises an air curtain machine arranged at the door of the workshop. The purpose is to block the gas exchange between the inside and outside of the workshop through the entrance and exit.
Further, in order to avoid personnel to pass in and out the workshop and lead to the inside and outside air in workshop to exchange, lead to containing lead the gaseous emission to external environment, the workshop door is double-layer door structure.
Furthermore, the dust treatment device also comprises a bag type dust collector communicated with the main ventilator for treating the lead-containing smoke dust.
Furthermore, the vertical distance between the branch ventilating duct and the workshop floor is 3-8 m. The purpose shortens the distance of branch road air pipe and workshop bottom pollution sources, improves the efficiency of dust absorption gas collection, has more made things convenient for the setting of workshop roof and direction vent all around, reaches better workshop air system overall arrangement.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. according to the production source of the pollution gas, a workshop is divided into three areas to carry out air system layout, the mechanical crushing process is divided into a first area, the secondary lead smelting process is divided into a second area, a raw material storage area, a battery feeding temporary storage area, a personnel channel and the like are divided into a third area, and the pollution gas is treated in a partition mode. The air in the workshop is maintained at low negative pressure (-50 to-100 Pa), and can flow from the third area to the second area, and the air supplement is arranged in the third area and the first area.
A large amount of lead dust can be generated in the process of treating the mechanical broken waste lead-acid storage battery by the primary treatment system, and the local ventilating duct and the gas-collecting hood on the branch ventilating duct perform gas-collecting ventilation on each pollution source. More in the second region are equipment such as airtight smelting furnace, can not continuously produce lead dust but the ejection of compact can have a large amount of lead dust when feeding to fly away, also can improve the workshop temperature moreover, so secondary treatment system mainly ventilates whole region, reaches the effect of dust absorption ventilation and cooling. The lead dust concentration of the third area is lowest, and a large amount of lead dust cannot be generated in the production operation process at ordinary times, so that the third-level treatment system mainly ventilates the area and maintains proper temperature and wind speed.
2. Through the gas collecting channel, the exhaust fan etc. with workshop bottom air suction pipeline, atmospheric pressure reduces, and outside air is impressed in the workshop and downward flow via the vent, forms the air current, has also guaranteed that contaminated air can be inhaled in the middle of the air system, guarantees that the air in the workshop obtains purifying, can keep the cleanness of air in the workshop to this ensures workshop operating personnel's production environment of doing work and prevents the emergence of harmful diseases such as workshop staff lead poisoning.
3. The utility model discloses continuously breathing in the discharge to workshop inside and leading to being negative pressure state in the workshop, in the workshop is impressed from the vent of workshop wall top to the outside fresh air in workshop, the workshop is inside to handle respectively through three processing system to install the air discharge fan on a road, getter device such as gas collecting channel, add in first region and install local ventilation and directly breathe in to the pollution sources.
Drawings
Fig. 1 is a schematic top view of a shop air system for secondary lead production.
Fig. 2 is a schematic front view of a branch vent duct of a plant air system for secondary lead production.
Fig. 3 is a schematic end view of a branch vent line for a shop air system for secondary lead production.
Wherein, 1, an exhaust fan; 2. a gas-collecting hood; 3. a branch ventilator; 4. a branch ventilation duct; 5. a main ventilation duct; 6. a vent; 7. local air duct.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1 to 3, the shop air system for secondary lead production comprises fourteen ventilation openings 6 arranged on the wall of the shop, and further comprises a primary treatment system for a crushing area, a secondary treatment system for a smelting area and a tertiary treatment system for a raw material and personnel access area.
The first-stage treatment system, the second-stage treatment system and the third-stage treatment system all comprise a main ventilation pipeline 5 communicated with the main ventilator and three branch ventilation pipelines 4 communicated with the main ventilation pipeline 5, and each branch ventilation pipeline 4 is provided with a plurality of uniformly distributed exhaust fans 1 and two branch ventilators 3. The two branch ventilation fans 3 are distributed at two ends of the branch ventilation pipeline 4, one end of the branch ventilation pipeline 4 is connected with the main ventilation pipeline 5, and the other end port of the branch ventilation pipeline 4 faces the workshop ground. The shape enclosed by the three branch ventilating ducts 4 of the first-stage treatment system is I-shaped, the shape enclosed by the three branch ventilating ducts 4 of the second-stage treatment system is reverse-like, and the shape enclosed by the three branch ventilating ducts 4 of the third-stage treatment system is L-shaped.
Six gas collecting hoods 2 and one gas collecting hood 2 are respectively arranged on one branch ventilating duct 4 of the first-stage treatment system and the second-stage treatment system, the gas collecting hoods 2 are communicated with the branch ventilating duct 4 through a local ventilating duct 7, and a local ventilator is arranged in the local ventilating duct 7. Six gas collecting channels 2 of the first-stage treatment system are uniformly distributed, and the six gas collecting channels 2 are all positioned in the same branch ventilation pipeline 4. The gas-collecting hood 2 of the first-stage treatment system is arranged right above the pollution source generation position, and the gas-collecting hood 2 of the second-stage treatment system is arranged at the central position of the smelting area.
Furthermore, the main ventilator is a centrifugal ventilator, and the local ventilator and the branch ventilator 3 are axial-flow ventilators. The main ventilator is arranged on the wall of the workshop, the vertical distance between the main ventilator and the ground is 5m, and the branch ventilator 3 and the local ventilator are respectively arranged in the branch ventilating duct 4 and the local ventilating duct. The workshop door is double-layer door structure, and workshop door department is provided with the air curtain machine, and main ventilation blower links to each other with bag collector. In the actual installation process, 600mm x 600mm exhaust fans and 475mm x 475mm exhaust fans can be selected to realize air suction of the ventilation pipeline to each part of space. The branch ventilating duct 4 is provided with a ventilating duct route which is arranged at a distance of five meters from the ground, and the main ventilating duct 5 and the branch ventilating duct 4 are made of galvanized thin steel sheets and are circular.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The workshop air system for the secondary lead production comprises a plurality of ventilation openings (6) arranged on the wall of a workshop, and is characterized by also comprising a first-stage treatment system for a crushing area, a second-stage treatment system for a smelting area and a third-stage treatment system for a raw material and personnel access area;
the first-stage treatment system, the second-stage treatment system and the third-stage treatment system respectively comprise a main ventilating duct (5) communicated with the main ventilating fan and a plurality of branch ventilating ducts (4) communicated with the main ventilating duct (5), and each branch ventilating duct (4) is provided with a plurality of exhaust fans (1) and branch ventilating fans (3);
branch air pipe (4) of first grade processing system and second grade processing system all are provided with a plurality of gas collecting channel (2), gas collecting channel (2) communicate with branch air pipe (4) through local air pipe (7), and are provided with local ventilation blower in local air pipe (7).
2. Plant air system for secondary lead production according to claim 1, characterized in that said branch ventilation ducts (4) are three in number.
3. The workshop air system for secondary lead production according to claim 2, wherein two branch ventilators (3) are arranged on each branch ventilation duct (4), and the two branch ventilators (3) are distributed at two ends of the branch ventilation duct (4).
4. The workshop air system for secondary lead production according to claim 2, wherein six gas-collecting hoods (2) are arranged on the branch ventilation pipeline (4) of the primary treatment system, and the six gas-collecting hoods (2) are located on the same branch ventilation pipeline (4).
5. Plant air system for secondary lead production according to claim 2, characterised in that the branch ventilation duct (4) of the secondary treatment system is provided with a gas-collecting hood (2).
6. The plant air system for secondary lead production according to any one of claims 3 to 5, wherein the branch ventilation duct (4) of the primary treatment system is I-shaped in shape, the branch ventilation duct (4) of the secondary treatment system is inverted T-shaped in shape, and the branch ventilation duct (4) of the tertiary treatment system is L-shaped in shape.
7. Plant air system for secondary lead production according to claim 1, characterized in that the main ventilator is a centrifugal ventilator, and the local ventilator and the branch ventilator (3) are axial ventilators.
8. The plant air system for secondary lead production as claimed in claim 1, further comprising an air curtain provided at a plant door.
9. The plant air system for secondary lead production according to claim 8, wherein the plant door is of a double door construction.
10. The plant air system for secondary lead production as claimed in claim 1, further comprising a bag house in communication with the main air mover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022219772.8U CN213300392U (en) | 2020-10-01 | 2020-10-01 | Workshop air system for secondary lead production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022219772.8U CN213300392U (en) | 2020-10-01 | 2020-10-01 | Workshop air system for secondary lead production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213300392U true CN213300392U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022219772.8U Active CN213300392U (en) | 2020-10-01 | 2020-10-01 | Workshop air system for secondary lead production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213300392U (en) |
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2020
- 2020-10-01 CN CN202022219772.8U patent/CN213300392U/en active Active
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