CN214158992U

CN214158992U - Talcum powder production dust collector

Info

Publication number: CN214158992U
Application number: CN202023153933.4U
Authority: CN
Inventors: 廖道发; 王尔莉; 钟修伟; 廖传茂
Original assignee: Jiangxi Liankai Technology Co ltd
Current assignee: Jiangxi Liankai Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-10
Anticipated expiration: 2030-12-24

Abstract

The invention relates to a dust removal device for talcum powder production, which comprises a spray tower, wherein the top of the spray tower is provided with an exhaust port, and the bottom of the spray tower is provided with a blow-off pipe, the upper side and the lower side of the spray tower are respectively provided with a water inlet pipe and an air inlet pipe, wherein a liquid distributor and an air guide mechanism are respectively arranged between the air inlet pipe and the water inlet pipe, a clean water tank is arranged on the outer side wall of the spray tower, wherein a transfer case is arranged in the clean water tank, the top ends of the two side walls of the transfer case are respectively provided with a liquid outlet and an overflow port, the inner side wall of the spray tower is also provided with a protective cover which is buckled on the overflow port and the bottom end of which is opened, wherein a sedimentation grid is arranged in the spray tower below the protective cover, a circulating pipe connected with the water inlet pipe is also arranged in the clear water tank, the circulating pipe is provided with a water pump, wherein a cleaning pipe connected with the bottom of the spraying tower is arranged on the circulating pipe at the downstream of the water pump. The invention has simple structure and convenient use.

Description

Talcum powder production dust collector

Technical Field

The invention relates to the technical field of talcum powder processing equipment, in particular to a dust removal device for talcum powder production.

Background

Talc has excellent physical and chemical properties such as lubricity, fire resistance, acid resistance, insulation properties, high melting point, chemical inertness, good covering power, softness, good gloss, strong adsorption power, and the like, and has a tendency to easily break into flakes and a special lubricating property because talc has a layered crystal structure. The tail gas emission is generated in the process of producing the talcum powder, a large amount of talcum powder dust is contained in the tail gas emission, the direct emission can cause serious pollution, and the talcum powder product in the tail gas is lost.

For example, the dust removal device for producing talcum powder with the publication number of CN211706264U solves the problems, but has the following disadvantages, such as: 1. because the contact time of the tail gas in the sedimentation tank and the spraying liquid is limited, dust in the tail gas cannot be in contact with the liquid for sufficient time, and the spraying effect is poor; 2. spray when liquid drops in the sedimentation tank after wetting the dust, dust and impurity at this moment at first float in the liquid surface, deposit in the sedimentation tank bottom gradually at the soaking in-process simultaneously, and spray liquid and dust and impurity when dropping on the liquid surface because the quality is light, the overflow mouth is crossed to the liquid level this moment, then lead to floated dust and impurity not yet deposit easily and flow to the clear water pond with transfinite liquid level and be taken out to the shower nozzle department and spray once more, then easily lead to spraying the liquid very muddy and influence the spraying effect for a long time.

Disclosure of Invention

The invention aims to solve the problems and provide a dust removal device for producing talcum powder.

The technical problem of the invention is mainly solved by the following technical scheme:

a dust removal device for talcum powder production comprises a spray tower, wherein an exhaust port is arranged at the top of the spray tower, a drain pipe is arranged at the bottom of the spray tower, an upper water inlet pipe and a lower air inlet pipe are respectively arranged at the upper side and the lower side of the spray tower, a liquid distributor positioned at the upper side and an air guide mechanism positioned at the lower side are respectively arranged in the spray tower between the air inlet pipes and the water inlet pipes, the air guide mechanism comprises a plurality of groups of sieve plates which are in a bow shape and positioned on the left inner side wall and the right inner side wall of the spray tower, the left sieve plate and the right sieve plate are vertically staggered, an arc notch is arranged in the middle of the arc edge end of each sieve plate, a clean water tank positioned below the air inlet pipe is arranged on the outer side wall of the spray tower in the clean water tank, a transfer box is arranged on the outer side wall of the spray tower in the clean water tank, and the top ends of the two side walls of the transfer box are respectively provided with a liquid outlet communicated with a cleaning tank and an overflow port communicated with the spray tower, the top is vertical to be provided with baffling board I that is located between overflow mouth and the liquid outlet in the transfer case, still be provided with on the spray column inside wall and detain the protection casing that open the setting in bottom on the overflow mouth, wherein be provided with the sediment grid in the spray column of protection casing below, still be provided with the circulating pipe with advance water piping connection in the clear water pond, wherein be located the circulating pipe and transfer case between the clear water pond top and be provided with baffling board II, be provided with the water pump on the circulating pipe, wherein be provided with the scavenge pipe of being connected with the spray column bottom on the circulating pipe of water pump low reaches, and all be provided with the control valve on scavenge.

Preferably, the cleaning pipe and the circulating pipe are both provided with check valves, wherein the cleaning pipe is connected with the bottom wall of the spraying tower below the precipitation grating.

Preferably, the sieve plate is obliquely arranged, the chord edge end of the sieve plate is higher than the arc edge end of the sieve plate, the arc edge end of the sieve plate is fixedly welded with the inner side wall of the spray tower, and the chord edge end of the upper sieve plate is positioned right above the lower sieve plate.

Preferably, the air inlet pipe is connected with a dust removal outlet on the talc production tank through a pipeline, wherein an induced draft fan is arranged on the pipeline.

Preferably, a communication port is formed between the baffle plate I and the bottom wall of the transfer box and between the baffle plate II and the bottom wall of the cleaning pool.

The invention has the beneficial effects that:

1. according to the invention, dust in the talc production tank is sucked by the draught fan, flows into the inner bottom of the spray tower through the pipeline and the air inlet pipe, flows upwards in the spray tower and is discharged from the exhaust port, the spray liquid is sprayed downwards from the upper part of the spray tower through the water inlet pipe, impurities such as dust in tail gas are wetted to remove dust in the tail gas, the dust is changed into slurry and is deposited at the bottom of the spray tower, the time and the way of the tail gas in the spray tower are prolonged through the air circulation channel formed between the sieve plates in the process, and the spray liquid is fully contacted with the tail gas, so that the spray effect and efficiency are improved.

2. The invention improves the cleanliness of the overflow liquid overflowing into the clear water tank through the protective cover, the transfer box, the baffle plate I and the baffle plate II, and the clear water in the clear water tank is pumped to the water inlet pipe by the water pump through the circulating pipe and is discharged into the spray tower for recycling so as to save water and improve the cleanliness of the recycled water.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the present invention;

fig. 3 is a schematic view of the structure of a screen plate in the present invention.

In the figure: 1. spray column, 2, gas vent, 3, blow off pipe, 4, intake pipe, 5, inlet tube, 6, liquid distributor, 7, air guide mechanism, 71, sieve, 72, breach, 8, clean water basin, 9, transfer case, 10, liquid outlet, 11, overflow mouth, 12, baffling board I, 13, protection casing, 14, sediment grid, 15, circulating pipe, 16, baffling board II, 17, intercommunication mouth, 18, water pump, 19, scavenge pipe, 20, control valve, 21, check valve.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings 1-3.

The utility model provides a talcum powder production dust collector, includes spray column 1, wherein 1 top of spray column is provided with gas vent 2, and its bottom is provided with blow off pipe 3, both sides still are provided with the inlet tube 5 that is located the top and are located the intake pipe 4 of below respectively about 1 spray column, and intake pipe 4 passes through the dust removal exit linkage on pipeline and the talcum production jar, wherein is provided with the draught fan on the pipeline.

Then the dust in the talcum production jar is inhaled by the draught fan, flows into spray column 1 bottom through pipeline and intake pipe 4, and its in-process that upwards flows in spray column 1 and is discharged by gas vent 2, inlet tube 5 sprays the spray liquor from spray column 1 top down, and then drenches impurity such as dust in the tail gas in order to get rid of the dust in the tail gas for the dust becomes mud and deposits in spray column 1 bottom.

Wherein be provided with the liquid distributor 6 that is located the top and be located the air guide mechanism 7 of below in the spray column 1 between intake pipe 4 and the inlet tube 5 respectively, air guide mechanism 7 is the bow-shaped sieve 71 of multiunit on two inside walls about being located spray column 1, staggers the setting from top to bottom between the sieve 71 that wherein controls and corresponds, and the department is provided with the arc breach 72 in the middle of the arc limit end of sieve 71, and sieve 71 slope setting in this embodiment, and its chord limit end is higher than its arc limit end, the arc limit end of sieve 71 and spray column 1's inside wall welded fastening, wherein the chord limit end of top sieve 71 is located its below sieve 71 department directly over.

As shown in figure 1, tail gas enters the spray tower 1 from the gas inlet pipe 4 and rises, part of the rising tail gas flows through the sieve holes of the sieve plates 71 and continues to move upwards, most of the tail gas flows through the air circulation channel formed between the two adjacent upper and lower sieve plates 71 and continues to move upwards, after liquid introduced into the spray tower 1 by the water inlet pipe 5 falls on the liquid distributor 6 in the rising process of the tail gas, the liquid distributor 6 enables the liquid to be uniformly sprayed and contacted with the tail gas to wet dust in the tail gas, so that the dust and the liquid fall to the bottom of the spray tower 1, wherein part of the liquid dropping on the sieve plates 71 drops from the sieve holes, or the liquid flows down from the notches 72, and most of the liquid flows through the air circulation channel formed between the two adjacent upper and lower sieve plates 71.

In this embodiment, the total length of the S-shaped air circulation channel formed between the two adjacent upper and lower sieve plates 71 is greater than the height of the corresponding spray tower 1, so that when the tail gas moves upwards in the S-shaped air circulation channel, the retention time of the tail gas in the spray tower 1 is prolonged, the contact time between the tail gas and the spray liquid is also prolonged, and the spray effect on the tail gas is enhanced.

As shown in fig. 1, a clean water tank 8 located below an air inlet pipe 4 is arranged on the outer side wall of a spray tower 1, wherein a transfer tank 9 is arranged on the outer side wall of the spray tower 1 in the clean water tank 8, a liquid outlet 10 communicated with a cleaning tank 8 and an overflow outlet 11 communicated with the spray tower 1 are respectively arranged at the top ends of the two side walls of the transfer tank 9, a baffle plate I12 located between the overflow outlet 11 and the liquid outlet 10 is vertically arranged at the top in the transfer tank 9, a protective cover 13 buckled on the overflow outlet 11 and provided with an open bottom end is further arranged on the inner side wall of the spray tower 1, wherein a precipitation grating 14 is arranged in the spray tower 1 below the protective cover 13, a circulating pipe 15 connected with an water inlet pipe 5 is further arranged in the clean water tank 8, a baffle plate II16 is arranged at the top in the clean water tank 8 located between the circulating pipe 15 and the transfer tank 9, and communication ports 17 are respectively formed between the baffle plate I12 and the bottom wall of the transfer tank 9 and the baffle plate II16 and the bottom wall of the cleaning tank 8, a water pump 18 is arranged on the circulating pipe 15, wherein a cleaning pipe 19 connected with the bottom of the spray tower 1 is arranged on the circulating pipe 15 at the downstream of the water pump 18, and a control valve 20 is arranged on each of the cleaning pipe 19 and the circulating pipe 15 at the downstream of the water pump 18.

As shown in fig. 1 and 2, the liquid fluctuation range at the bottom of the spray tower 1 is limited by the sedimentation grid 14, so that the bottom sediment is prevented from being excited due to the influence of larger liquid fluctuation, and the sedimentation effect and efficiency at the bottom of the spray tower are further affected, the cleaner liquid at the bottom of the spray tower 1 flows into the interior of the spray tower 1 through the bottom opening of the protective cover 13, and overflows into the transfer box 9 through the overflow port 11 when the liquid level is higher than the overflow port 11, and at the moment, the protective cover 13 can effectively prevent the spray liquid in the spray tower 1 and impurities such as dust from directly flowing into the transfer box 9 through the overflow port 11 when the liquid level is higher than the overflow port 11.

And the liquid flowing into the transfer box 9 is baffled and guided by the baffle plate I12 to prevent the liquid from directly flowing to the liquid outlet 10 and flowing into the clean water tank 8, so that the retention time of the liquid in the transfer box 9 is prolonged, and when the liquid flows through the communicating port 17 at the bottom of the baffle plate I12, impurities in the liquid are adhered to the end face of the baffle plate I12 or are deposited at the bottom of the transfer box 9, so that the liquid flowing into the clean water tank 8 through the liquid outlet 10 contains less impurities.

When the bottom of the spray tower 1 needs to be cleaned after the operation is stopped, the switch valve 20 on the circulating pipe 15 is closed, and the control valve 20 on the cleaning pipe 19 is opened, so that the water pump 18 pumps the liquid in the clean water tank 8 to the bottom of the spray tower 1 through the circulating pipe 15 and the cleaning pipe 19 to flush the bottom deposited impurities so as to be mixed with the liquid and discharged through the drain pipe 3, and further the cleaning operation of the bottom impurities of the spray tower 1 is facilitated.

Preferably, the cleaning pipe 19 and the circulating pipe 15 are both provided with a check valve 21, wherein the cleaning pipe 19 is connected with the bottom wall of the spray tower 1 below the precipitation grating 14. The liquid in the water inlet pipe 5 and the liquid at the bottom of the spray tower 1 are prevented from flowing backwards into the clean water tank 8 through the check valve 21.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A dust removal device for talcum powder production is characterized by comprising a spray tower, wherein the top of the spray tower is provided with an exhaust port, the bottom of the spray tower is provided with a blow-off pipe, the upper side and the lower side of the spray tower are respectively provided with an upper water inlet pipe and a lower air inlet pipe, a liquid distributor positioned above and a lower air guide mechanism are respectively arranged in the spray tower between the air inlet pipes, the air guide mechanism comprises a plurality of groups of sieve plates in a bow shape on the left inner side wall and the right inner side wall of the spray tower, the left sieve plate and the right sieve plate are vertically staggered, an arc notch is arranged in the middle of the arc edge end of each sieve plate, a clean water pool positioned below the air inlet pipe is arranged on the outer side wall of the spray tower, a transfer box is arranged on the outer side wall of the spray tower in the clean water pool, and the top ends of the two side walls of the transfer box are respectively provided with a liquid outlet communicated with a cleaning pool and an overflow port communicated with the spray tower, the top is vertical to be provided with baffling board I that is located between overflow mouth and the liquid outlet in the transfer case, still be provided with on the spray column inside wall and detain the protection casing that open the setting in bottom on the overflow mouth, wherein be provided with the sediment grid in the spray column of protection casing below, still be provided with the circulating pipe with advance water piping connection in the clear water pond, wherein be located the circulating pipe and transfer case between the clear water pond top and be provided with baffling board II, be provided with the water pump on the circulating pipe, wherein be provided with the scavenge pipe of being connected with the spray column bottom on the circulating pipe of water pump low reaches, and all be provided with the control valve on scavenge pipe and the circulating pipe of water pump low reaches.

2. The dust removing device for the talc powder production according to claim 1, wherein the cleaning pipe and the circulating pipe are provided with check valves, and wherein the cleaning pipe is connected with the bottom wall of the spray tower below the precipitation grid.

3. The dust collector for talc production according to claim 1, wherein said sieve plate is disposed obliquely and its chordal edge is higher than its arc edge, the arc edge of said sieve plate is welded to the inner sidewall of spray tower, and the chordal edge of the upper sieve plate is located right above the lower sieve plate.

4. The dust removal device for talc production according to claim 1, wherein said air inlet pipe is connected to a dust removal outlet on talc production tank through a pipe, wherein an induced draft fan is disposed on the pipe.

5. The dust removal device for talc powder production according to claim 1, wherein communication ports are formed between the baffle plate I and the bottom wall of the transit box and between the baffle plate II and the bottom wall of the cleaning tank.