CN212942080U - Auxiliary spraying dust removal device of wet-type quicklime slaking dust remover - Google Patents
Auxiliary spraying dust removal device of wet-type quicklime slaking dust remover Download PDFInfo
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- CN212942080U CN212942080U CN202020838054.6U CN202020838054U CN212942080U CN 212942080 U CN212942080 U CN 212942080U CN 202020838054 U CN202020838054 U CN 202020838054U CN 212942080 U CN212942080 U CN 212942080U
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Abstract
The utility model relates to a supplementary dust collector that sprays of wet-type quick lime slaking dust remover, include: quick lime slaker, dust removal pipeline and the precipitation water tank of dust remover, dust removal pipeline one end and the airtight intercommunication of the gas outlet of quick lime slaker, the upper cover intercommunication of the other end and the precipitation water tank one side of dust remover, its characterized in that: the dust removal pipeline is in an inverted U shape, the top dust removal pipeline inclines downwards by 12 degrees along the direction of the precipitation water tank, the upper side of the top dust removal pipeline is provided with penetrating circular holes which are arranged at equal intervals, and a spray dust removal device communicated with the top dust removal pipeline is arranged above the top dust removal pipeline; spray the dust removal subassembly include the water supply valve, spray and be responsible for, the flowmeter, spray branch pipe and the nozzle that corresponds, the utility model has the advantages that: 1) the dust removal efficiency is improved, the working environment is improved, the health is benefited, and the normal and stable production is better ensured. 2) Simple structure, easy manufacture and convenient maintenance.
Description
Technical Field
The utility model belongs to the technical field of steel industry environmental protection dust removal, concretely relates to supplementary dust collector that sprays of wet-type quick lime slaking dust remover.
Background
The cover plate is connected on the box body of the quicklime slaker of the domestic sintering plant, the feed inlet and the gas outlet are arranged on the cover plate, and the quicklime can enter the batching process after being slaked in the quicklime slaker by adding water to form lime milk. During production, a large amount of steam containing fine particle dust is generated in the process of adding water into quicklime fed from a feed inlet, and the steam is directly discharged into the air from an air outlet on a cover plate, so that the steam is dense in an operation site, poor in visibility, severe in environment and easy to cause safety accidents; the environment also makes it difficult for post workers to check the quicklime digestion condition, so that the water addition amount is difficult to control, the quicklime digestion effect often cannot meet the production process requirements, and the production cannot be stable; in addition, the dense steam can also pollute the surrounding environment, other nearby equipment is easily corroded to influence the normal operation of the equipment, and meanwhile, the loss of raw materials can be caused by the escape of part of the fine-particle quicklime along with the steam.
At present, a quicklime slaking dust removal device mainly adopts a wet dust removal mode and also adopts an electric dust removal mode. The wet dust collector mainly comprises an impact dust collector, a spray wet dust collector and a sieve tube intrusive wet dust collector. From the on-the-spot actual operation dust removal effect condition, wet dust collector has the dust removal effect poor, discharges the high scheduling problem of flue gas dust content, and the concrete conditions are introduced as follows:
the impact type dust remover is provided with a closed water tank, four partition plates are alternately arranged in the closed water tank from top to bottom, a dust removal fan is arranged at one end of an upper cover of the closed water tank, a dust pipeline inlet is formed in the other end of the upper cover, a water stirrer is arranged in the middle of the upper cover, a water supply pipe is arranged in the middle of a side plate of the closed water tank at one side of the dust removal fan, a blow-down valve is arranged at the lower portion of the side plate of the closed water tank below the dust pipeline inlet, and an overflow port is.
Problems with impact precipitators: the dust removing mechanism is that a cyclone opening is arranged in the dust removing mechanism, and dust-containing gas is filtered from water under the action of negative pressure, so that the dust removing effect is achieved. When the dust-containing gas passes through the water, water bubbles are formed, and then the dust-containing gas advances and emerges under the action of negative pressure to be purified, but each bubble still contains a large amount of dust; in addition, the dust removal mode has large loss on the fan, the dust removal efficiency can only reach about 90 percent, and the emission standard specified by the state and the industry cannot be met.
The problems of the spraying wet dust collector are as follows: the dust removal mechanism is that the dust-containing gas is connected to the water dust remover through a pipeline, water forms a water curtain through a spray head in the dust remover, the dust-containing gas flows under the action of negative pressure, and a dust removal process of spraying and flushing is realized when the dust-containing gas passes through the water curtain.
The screen pipe intrusion type wet dust collector has the following problems: firstly, the dust can be sticky substances and contains moisture, and the inner pipeline of the dust remover is easy to be stuck and blocked; secondly, the common dedusting ash has corrosiveness, and the dedusting pipeline is easy to corrode, so that secondary pollution of sewage and sludge is caused; moreover, the dust removal efficiency is low, and the emission does not reach the standard.
In summary, the wet quicklime slaking dust removing device generally has the following problems: 1) the problem that a large amount of sewage generated in the dust removal process needs to be treated or recycled; 2) the equipment of the wet dust removal unit often breaks down, the dust remover and the digester can not run synchronously, and the environment of the batching chamber is still poor during the failure of the dust remover; 3) quicklime dust is easy to harden in a dust removal pipeline to block the dust removal pipeline, so that smoke is not smooth, the ash is seriously emitted from a digester, and much dust is generated on site and around, so that the operation environment is influenced; 4) because the pipeline is blocked, the dedusting water inflow and the water outflow cannot be balanced, the water outflow is less than the water inflow, and a blowdown valve must be opened for discharging in each shift, so that not only is the resource waste caused, but also the lime slurry in the external blowdown water causes the sewer pipeline to be frequently blocked; 5) the quicklime dust and the sensible heat of steam in the flue gas cannot be effectively recycled, so that the consumption of steam and quicklime is high; 6) can not meet the current environmental protection requirement and generates quicklime digestion wastewater; 7) Sewage in the dust removal box body cannot be discharged in a timely and circulating manner, and muddy water enters the fan impeller to cause severe vibration of the fan, so that faults such as cracking of the base, burning loss of the motor and the like frequently occur; 8) the lime slurry in the water tank is precipitated for a long time, so that the sewage pump is often blocked, the stirring pump is necrotic, and the equipment maintenance frequency is increased; 9) the amount of water used for slaking the quicklime is insufficient, so that the quicklime is slaked and supplied with clean water, and the water consumption is increased: meanwhile, because the water quantity is unstable, the control of the water content of the mixture is difficult, and the fluctuation of dry and wet materials, the material pressing of a belt and the like often occur, so that the yield and the quality of the sinter are reduced; 10) the equipment is seriously rusted, and the design capability can not meet the requirements of the current production and environmental protection.
Disclosure of Invention
An object of the utility model is to provide a supplementary dust collector that sprays of wet-type quick lime slaking dust remover to realize the degasification and remove dust, improve the site work environment, create the condition for guaranteeing that production is normal stable.
The utility model discloses a realize through following technical scheme:
the utility model discloses a supplementary dust collector that sprays of wet-type quick lime slaking dust remover, include: quick lime slaker, dust removal pipeline and quick lime slaking dust remover's sediment water tank, dust removal pipeline one end and the airtight intercommunication of quick lime slaker's gas outlet, the other end communicates its characterized in that with the upper cover on one side of the sediment water tank of quick lime slaking dust remover: the dust removal pipeline is in an inverted U shape, the top dust removal pipeline is inclined downwards by 10-15 degrees along the direction of the precipitation water tank, the upper side of the top dust removal pipeline is provided with penetrating circular holes which are arranged at equal intervals, and an auxiliary spraying dust removal device is arranged above the top dust removal pipeline;
the auxiliary spraying dust removal device comprises a spraying main pipe, a flowmeter, a spraying branch pipe, a water feeding valve and a nozzle, wherein the spraying main pipe is arranged above a top dust removal pipeline, the flowmeter is arranged at a water feeding end of the spraying main pipe, one end of the spraying branch pipe is vertically communicated with the spraying main pipe, the other end of the spraying branch pipe is fixedly connected with the bottom of the nozzle, the head of the nozzle is correspondingly inserted into a through round hole and fixedly connected with the top dust removal pipeline through threads, and the water feeding valve is arranged on the spraying branch pipe.
The number of the spraying branch pipes is 6-10, and the spraying branch pipes are arranged in one-to-one correspondence with the penetrating round holes arranged at equal intervals.
The equal distance is 400 mm-500 mm.
A floater liquid level switch is arranged on a water supply pipe in the precipitation water tank at one side of the dust removal fan.
Compared with the prior art, the utility model has the advantages that:
the utility model provides a scene dust removal effect has improved operational environment, and is healthy beneficial to the post workman, makes the post workman can carry out quick lime slaker process parameter's control according to sintering machine production technology smoothly simultaneously, trails the use ratio of quick lime, creates the condition for guaranteeing that production is normal stable to can reduce fuel consumption better, improve production efficiency and improve product quality.
The utility model discloses simple structure, preparation are easy, and it is convenient to overhaul the maintenance.
Drawings
Fig. 1 is a schematic view of the structure and the installation position of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a supplementary dust collector that sprays of wet-type quick lime slaking dust remover, include: quick lime slaker 1, dust removal pipeline 2 and quick lime slaker's sediment water tank 8, 2 one end of dust removal pipeline and the airtight intercommunication of quick lime slaker 1's gas outlet, the other end communicates its characterized in that with the upper cover of quick lime slaker's sediment water tank 8 one end: the dust removal pipeline 2 is in an inverted U shape, the top dust removal pipeline 2 is inclined downwards by 12 degrees along the direction of the precipitation water tank 8, the upper side of the top dust removal pipeline 2 is provided with penetrating circular holes which are arranged at equal intervals of 500mm, and an auxiliary spraying dust removal device is arranged above the top dust removal pipeline 2;
supplementary dust collector that sprays including spraying 3, flowmeter 4, spray branch pipe 5, water supply valve 6 and nozzle 7 of being responsible for, spray 3 settings of being responsible for in top dust removal pipeline 2 tops of being responsible for, flowmeter 4 set up and spraying the water supply end of being responsible for 3, 5 one end of branch pipe spray with spray and be responsible for 3 perpendicular intercommunications, the other end and 7 bottom rigid couplings of nozzle intercommunication, 7 head correspondences of nozzle insert in the penetrating circular hole, and the screw thread rigid coupling is on top dust removal pipeline 2, water supply valve 6 set up on spray branch pipe 5.
The spray branch pipes are 6 and are arranged in a one-to-one correspondence manner with the transparent round holes with the equal distance of 500 mm.
A floater liquid level switch is arranged on a water supply pipe in the precipitation water tank 8 at one side of the dust removal fan.
The utility model discloses an installation and working process
Installation process
As shown in figure 1, one end of a dust removal pipeline 2 is fixed on an air outlet of an upper cover of a quicklime slaker 1 by screws, and the other end of the dust removal pipeline 2 is connected to a dust inlet part at one end of a precipitation water tank 8 of the quicklime slaker by a flange; arranging a main spray pipe 3 above a dust removal pipeline 2 in parallel, connecting a flowmeter 4 at the water supply end of the main spray pipe 3 by using threads, installing branch spray pipes 5 with water supply valves 6 on the main spray pipe 3 behind the flowmeter 4 at intervals of 500mm, installing nozzles 7 at the end parts of the branch spray pipes 5, then installing fixed nozzles 7 on the top dust removal pipeline 2 by using threads for punching, and installing 6 branch spray pipes 5 on the top dust removal pipeline 2 in total;
working process
The dust that quick lime slaker 1 produced relies on the negative pressure that dust exhausting fan 10 produced to move to quick lime slaker's precipitation water tank 8 direction through dust removal pipeline 2, and the dust is mixed with the water smoke that nozzle 7 produced in the motion process through top dust removal pipeline 2 nozzle 7 position and is realized supplementary dust removal, and the volume of spraying of water smoke relies on water supply valve 6 to adjust.
Water in the settling water tank 8 is stirred and completely mixed at the upper part of the settling water tank 8 through an impeller 9, settling is carried out at the lower part of the settling water tank 8, and a drain valve is periodically opened to drain sewage to a trench; the residual air is directly discharged into the trench along with the water level overflow by utilizing the overflow hole; the interior of the sedimentation water tank 8 is partitioned by a water supplementing partition plate and is divided into a clear water area and a muddy water area, the clear water area provides a water source from a water inlet pipe, the water level is controlled by a float liquid level switch, and an overflow hole is arranged in the muddy water area to control the water level in the muddy water area, so that the water level in the sedimentation water tank 8 is always in a constant state.
Claims (4)
1. An auxiliary spraying dust collector of a wet-type quicklime slaking dust collector comprises: quick lime slaker, dust removal pipeline and quick lime slaking dust remover's sediment water tank, dust removal pipeline one end and the airtight intercommunication of quick lime slaker's gas outlet, the other end communicates its characterized in that with the upper cover on one side of the sediment water tank of quick lime slaking dust remover: the dust removal pipeline is in an inverted U shape, the top dust removal pipeline is inclined downwards by 10-15 degrees along the direction of the precipitation water tank, the upper side of the top dust removal pipeline is provided with penetrating circular holes which are arranged at equal intervals, and an auxiliary spraying dust removal device is arranged above the top dust removal pipeline;
the auxiliary spraying dust removal device comprises a spraying main pipe, a flowmeter, a spraying branch pipe, a water feeding valve and a nozzle, wherein the spraying main pipe is arranged above a top dust removal pipeline, the flowmeter is arranged at a water feeding end of the spraying main pipe, one end of the spraying branch pipe is vertically communicated with the spraying main pipe, the other end of the spraying branch pipe is fixedly connected with the bottom of the nozzle, the head of the nozzle is correspondingly inserted into a through round hole and fixedly connected with the top dust removal pipeline through threads, and the water feeding valve is arranged on the spraying branch pipe.
2. The auxiliary spraying dust removing device of the wet type quicklime slaking dust remover according to claim 1, wherein the number of the spraying branch pipes is 6-10, and the spraying branch pipes are arranged in one-to-one correspondence with the through round holes which are arranged at equal intervals.
3. The auxiliary spray dust collector of the wet type quicklime slaking dust collector as claimed in claim 1, wherein the equal distance is 400 mm-500 mm.
4. The auxiliary spraying dust removing device of the wet type quicklime slaking dust remover as claimed in claim 1, wherein a float liquid level switch is arranged on a water supply pipe in the settling water tank at one side of the dust removing fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838054.6U CN212942080U (en) | 2020-05-19 | 2020-05-19 | Auxiliary spraying dust removal device of wet-type quicklime slaking dust remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838054.6U CN212942080U (en) | 2020-05-19 | 2020-05-19 | Auxiliary spraying dust removal device of wet-type quicklime slaking dust remover |
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| CN212942080U true CN212942080U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477623A (en) * | 2021-07-29 | 2021-10-08 | 江苏迪思朗环境科技有限公司 | Ash removal pipe system |
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2020
- 2020-05-19 CN CN202020838054.6U patent/CN212942080U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477623A (en) * | 2021-07-29 | 2021-10-08 | 江苏迪思朗环境科技有限公司 | Ash removal pipe system |
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