An interior dust removal device for a papermaking plant

Abstract

The utility model relates to a kind of paper mill workshop interior dust removal device, when needing to carry out dust removal to paper mill workshop interior in actual production use process, the dust in workshop can be transported to the interior of spray tower body by ventilation duct, then spray tower body is operated, spray tower body is cooled and dusted and absorbs water-soluble pollutant to the gas containing dust that enters first, then dust removal gas after cooling continues to rise to gas outlet, then into gas pipe, the ultraviolet lamp tube in gas pipe excites catalyst coating and generates strong oxidizing free radical, sulfide (such as HzS, methyl mercaptan) in stench, VOCS etc. are decomposed into CO2, H20 etc. Harmless substance, then discharge through outlet, when needing to clean the adherent of ultraviolet lamp tube outer surface stickiness, mobile assembly can be operated, so that mobile assembly drives several groups of scraping component to scrape the adherent on the outer surface of ultraviolet lamp tube by connecting piece, then reset is carried out to scraping component.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment in papermaking workshops, and in particular to a dust removal device for the interior of a papermaking workshop. Background Technology

[0002] Pulp dust (especially during drying and bleaching processes) often adsorbs malodorous gases such as methanethiol and hydrogen sulfide, as well as volatile organic compounds (VOCs) such as formaldehyde.

[0003] When removing dust in pulp mills, a spray pretreatment + photocatalytic oxidation method is usually adopted. The spray tower first cools down and removes dust and absorbs water-soluble pollutants, and then photocatalytic oxidation treats the remaining organic matter. Photocatalytic oxidation uses ultraviolet light to excite the catalyst (such as TiO2) to generate strong oxidizing free radicals, which decompose sulfides (such as H2S, methanethiol) and VOCs in the odor into harmless substances such as CO2 and H2O.

[0004] Since pulp exhaust gas often contains high-temperature steam and adhesives, sticky dust will adhere to the outer surface of the lamp tube. Over time, this will lead to a decrease in light source efficiency and eventually lamp tube failure, which will greatly affect the activation of the catalyst and thus affect the decomposition of the gas. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the aforementioned problems in the prior art, this utility model provides a dust removal device for the interior of a paper mill, which can promptly clean the adhering substances on the outer surface of the lamp tubes, maintain the light source emitted by the lamp tubes, and allow the catalyst to be better activated, thereby enabling the catalyst to better decompose the gas.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A dust removal device for a paper mill includes a spray tower body, a photocatalytic oxidation mechanism, and a cleaning mechanism. The upper part of the spray tower body is provided with an air outlet, the photocatalytic oxidation mechanism is connected to the air outlet, and the cleaning mechanism is connected to the photocatalytic oxidation mechanism.

[0010] The photocatalytic oxidation mechanism includes an air passage and several ultraviolet lamps. The lower part of the air passage has an inlet, and the upper part of the air passage has an outlet. The lower part of the air passage is connected to the outlet through the inlet. Several ultraviolet lamps are arranged around the inside of the air passage. The inner wall of the air passage is coated with a catalyst. The cleaning mechanism is connected to the ultraviolet lamps.

[0011] The cleaning mechanism includes a moving component, a connector, and a scraping component. One of the scraping components is movably connected to the outer surface of one of the ultraviolet lamps. Two adjacent scraping components are connected through the connector, and the moving components are all driven to the connector.

[0012] Furthermore, the scraping assembly includes a sleeve and a scraper. The sleeve is fitted over the outside of the ultraviolet lamp tube, and the scraper is disposed on the lower surface of the sleeve. The scraper is movably connected to the outer surface of the ultraviolet lamp tube, and adjacent sleeves are connected by the connector.

[0013] Furthermore, the moving component includes several linear drive members, pressure rods, and pressure plates. The upper part of the air passage is provided with several sliding holes adapted to the pressure rods. One pressure rod passes through the interior of one of the sliding holes. The upper surface of each connector is connected to the lower surface of the pressure plate through a pressure rod. Several linear drive members are arranged around the outer surface of the air passage, and the linear drive members are linearly driven connected to the pressure plate.

[0014] Furthermore, the cleaning mechanism also includes a liquid filling assembly, which is connected to the sleeve;

[0015] The liquid addition assembly includes an inlet assembly, a manifold, a distributor, and a nozzle. Each sleeve has a cavity inside, and one cavity is connected to the manifold through a distributor. The inlet assembly is connected to the manifold. The bottom of the sleeve also has several nozzles, which are connected to the cavities. Each nozzle is equipped with a nozzle.

[0016] Furthermore, the pumping assembly includes a pumping pipe, a pumping pump, and an inlet pipe. The inlet pipe passes through the upper part of the air pipe, the lower part of the inlet pipe is connected to the manifold, the upper part of the inlet pipe is connected to one side of the pumping pump, the pumping pump and the inlet pipe are detachably connected to the pressure plate, and a pumping pipe is provided on the other side of the pumping pump.

[0017] Furthermore, it also includes a sealing ring. A limiting platform is provided at the lower part of the pressure rod, and a sealing ring is provided at the upper part of the limiting platform. The sealing ring is movably connected to the lower part of the sliding hole.

[0018] Furthermore, it also includes a PLC controller, which is electrically connected to the spray tower body, the photocatalytic oxidation mechanism, and the cleaning mechanism, respectively.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this utility model are as follows: In actual production and use, when dust removal is required inside the papermaking workshop, the dust in the workshop can be transported to the spray tower body through the ventilation duct. Then, the spray tower body is operated, allowing it to first cool and remove dust from the incoming dust-containing gas and absorb water-soluble pollutants. The cooled and dust-removed gas then continues to rise to the outlet and enters the gas passage pipe. The ultraviolet lamps in the gas passage pipe excite the catalyst coating to generate strong oxidizing free radicals, which remove sulfides (such as HzS) from the odorous gas. The UV lamp decomposes substances such as methanethiol and VOCs into harmless substances like CO2 and H2O, which are then discharged through the outlet. When it is necessary to clean the adhering substances on the outer surface of the UV lamp, the moving component can be activated. This component, through the connecting parts, drives several sets of scraping components to scrape off the adhering substances on the outer surface of the UV lamp. The scraping components are then reset. This allows for timely cleaning of the adhering substances on the outer surface of the lamp, maintaining the light emitted by the lamp and allowing the catalyst to be better activated, thereby enabling the catalyst to better decompose the gas. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the dust removal device inside the papermaking workshop according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the photocatalytic oxidation mechanism and the cleaning mechanism of the dust removal device inside the papermaking workshop according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the photocatalytic oxidation mechanism and the cleaning mechanism of the dust removal device inside the paper mill, according to an embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the cleaning mechanism of the dust removal device inside the papermaking workshop, as described in an embodiment of this utility model.

[0025] Figure 5 This is a schematic diagram of the cleaning mechanism of the dust removal device inside the papermaking workshop, as described in an embodiment of this utility model.

[0026] [Explanation of Labels in the Attached Image]

[0027] 1. Spray tower body; 2. Photocatalytic oxidation mechanism; 3. Cleaning mechanism; 4. Gas outlet pipe; 5. Gas passage pipe; 201. Ultraviolet lamp tube; 202. Inlet; 203. Outlet; 204. Catalyst coating; 205. Pressure plate; 301. Water pump; 302. Water pump pipe; 303. Linear drive component; 304. Inlet pipe; 305. Pressure rod; 306. Limiting platform; 307. Sleeve; 308. Scraper; 309. Collector pipe; 310. Diverter pipe; 311. Connector; 312. Spray head; 313. Detailed Implementation

[0028] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Please refer to Figures 1 to 5 As shown, the present invention provides a dust removal device for an internal papermaking workshop, comprising a spray tower body 1, a photocatalytic oxidation mechanism 2, and a cleaning mechanism 3. The upper part of the spray tower body 1 is provided with an air outlet, the photocatalytic oxidation mechanism 2 is connected to the air outlet, and the cleaning mechanism 3 is connected to the photocatalytic oxidation mechanism 2.

[0030] The photocatalytic oxidation mechanism 2 includes an air passage 201 and a plurality of ultraviolet lamps 202. The lower part of the air passage 201 is provided with an inlet 203 and the upper part of the air passage 201 is provided with an outlet 204. The lower part of the air passage 201 is connected to the outlet through the inlet 203. The plurality of ultraviolet lamps 202 are arranged around the inside of the air passage 201. The inner wall of the air passage 201 is provided with a catalyst coating 205. The cleaning mechanism 3 is connected to the ultraviolet lamps 202.

[0031] The cleaning mechanism 3 includes a moving component, a connector 312, and a scraping component. One of the scraping components is movably connected to the outer surface of one of the ultraviolet lamps 202. Two adjacent scraping components are connected through the connector 312. The moving components are all drivenly connected to the connector 312.

[0032] The working principle of this utility model is as follows: In actual production and use, when dust removal is required inside the papermaking workshop, the dust in the workshop can be transported to the spray tower body 1 through the ventilation duct. Then, the spray tower body 1 is operated, so that the spray tower body 1 first cools down and removes dust from the incoming dust-containing gas and absorbs water-soluble pollutants. Then, the dust-removed and cooled gas continues to rise to the outlet and then enters the gas pipe 201. The ultraviolet lamp 202 in the gas pipe 201 excites the catalyst coating 205 to generate strong oxidizing free radicals, which decompose sulfides (such as HzS, methanethiol), VOCs, etc. in the odor into harmless substances such as CO2 and H2O, and then discharges through the outlet 204. When it is necessary to clean the adhering substances on the outer surface of the ultraviolet lamp 202, the moving component can be operated, so that the moving component drives several sets of scraping components through the connector 312 to scrape off the adhering substances on the outer surface of the ultraviolet lamp 202, and then the scraping components are reset.

[0033] Furthermore, the scraping assembly includes a sleeve 308 and a scraper 309. The sleeve 308 is sleeved on the outside of the ultraviolet lamp tube 202, and the scraper 309 is provided on the lower surface of the sleeve 308. The scraper 309 is movably connected to the outer surface of the ultraviolet lamp tube 202, and adjacent sleeves 308 are connected by the connector 312.

[0034] Furthermore, the moving assembly includes several linear drive members 304, pressure rods 306, and pressure plates 301. The upper part of the air passage 201 is provided with several sliding holes adapted to the pressure rods 306. One pressure rod 306 passes through the interior of one of the sliding holes. The upper surface of each connector 312 is connected to the lower surface of the pressure plate 301 through a pressure rod 306. Several linear drive members 304 are arranged around the outer surface of the air passage 201, and the linear drive members 304 are linearly driven connected to the pressure plate 301.

[0035] As can be seen from the above description, when it is necessary to scrape and clean the adhering substances on the outer surface of the ultraviolet lamp tube 202, the linear drive component 304 can be operated, so that the linear drive component 304 drives the pressure rod 306 through the pressure plate 301 to press down on the connector 312, thereby causing the connector 312 to drive the scraper 309 through the sleeve 308 to scrape and clean the outer surface of the ultraviolet lamp tube 202.

[0036] Furthermore, the cleaning mechanism 3 also includes a liquid filling component, which is connected to the sleeve 308;

[0037] The liquid addition assembly includes an injection component, a manifold 310, a diverter 311, and a nozzle 313. Each sleeve 308 has a cavity inside. One cavity is connected to the manifold 310 through a diverter 311. The injection component is connected to the manifold 310. The bottom of the sleeve 308 is also provided with several nozzles. Each nozzle is connected to the cavity, and each nozzle is provided with a nozzle 313.

[0038] As can be seen from the above description, when it is necessary to better clean the outer surface of the UV lamp tube 202, the cleaning liquid can be introduced into the manifold 310 through the injection component, and then introduced into the cavity of several sleeves 308 through the diversion pipe 311, and sprayed onto the outer surface of the UV lamp tube 202 through the nozzle 313, so that the attached substances can be better scraped off. When the scraper 309 scrapes the UV lamp tube 202 from top to bottom, the sewage and stains flow into the spray tower through the air outlet.

[0039] Furthermore, the pumping assembly includes a pumping pipe 303, a pumping pump 302, and an inlet pipe 305. The inlet pipe 305 passes through the upper part of the air pipe 201, the lower part of the inlet pipe 305 is connected to the manifold 310, and the upper part of the inlet pipe 305 is connected to one side of the pumping pump 302. Both the pumping pump 302 and the inlet pipe 305 are detachably connected to the pressure plate 301. The pumping pipe 303 is provided on the other side of the pumping pump 302.

[0040] As can be seen from the above description, when it is necessary to draw the cleaning fluid into the manifold 310, the water pump 302 can be run to allow the cleaning fluid to enter the inlet pipe 305 through the water pumping pipe 303, and then the cleaning fluid in the inlet pipe 305 enters the manifold 310 for diversion.

[0041] Furthermore, it also includes a sealing ring. A limiting platform 307 is provided at the lower part of the pressure rod 306, and a sealing ring is provided at the upper part of the limiting platform 307. The sealing ring is movably connected to the lower part of the sliding hole.

[0042] As can be seen from the above description, when the scraper 309 is placed on the upper part of the air passage pipe 201, the limiting platform 307 on the pressure rod 306 presses the lower part of the sliding hole through the sealing ring, so that the gas passing through the air passage pipe 201 will not leak from the sliding hole.

[0043] Furthermore, it also includes a PLC controller, which is electrically connected to the spray tower body 1, the photocatalytic oxidation mechanism 2, and the cleaning mechanism 3, respectively.

[0044] As can be seen from the above description, it is beneficial to adjust the parameters of the dust removal device inside the papermaking workshop through the PLC controller, and to make it more convenient for operators to operate the dust removal device inside the papermaking workshop. Example 1

[0045] Please refer to Figures 1 to 5 A dust removal device for a paper mill includes a spray tower body 1, a photocatalytic oxidation mechanism 2, and a cleaning mechanism 3. The upper part of the spray tower body 1 is provided with an air outlet, the photocatalytic oxidation mechanism 2 is connected to the air outlet, and the cleaning mechanism 3 is connected to the photocatalytic oxidation mechanism 2.

[0046] The photocatalytic oxidation mechanism 2 includes an air passage 201 and a plurality of ultraviolet lamps 202. The lower part of the air passage 201 is provided with an inlet 203 and the upper part of the air passage 201 is provided with an outlet 204. The lower part of the air passage 201 is connected to the outlet through the inlet 203. The plurality of ultraviolet lamps 202 are arranged around the inside of the air passage 201. The inner wall of the air passage 201 is provided with a catalyst coating 205. The cleaning mechanism 3 is connected to the ultraviolet lamps 202.

[0047] The cleaning mechanism 3 includes a moving component, a connector 312, and a scraping component. One of the scraping components is movably connected to the outer surface of one of the ultraviolet lamp tubes 202. Two adjacent scraping components are connected through the connector 312. The moving components are all driven to the connector 312.

[0048] The scraping assembly includes a sleeve 308 and a scraper 309. The sleeve 308 is sleeved on the outside of the ultraviolet lamp tube 202. The scraper 309 is provided on the lower surface of the sleeve 308. The scraper 309 is movably connected to the outer surface of the ultraviolet lamp tube 202. Adjacent sleeves 308 are connected by the connector 312.

[0049] The scraper 309 is made of rubber.

[0050] The moving assembly includes several linear drive members 304, pressure rods 306, and pressure plates 301. The upper part of the air passage 201 is provided with several sliding holes adapted to the pressure rods 306. One pressure rod 306 passes through the interior of one of the sliding holes. The upper surface of each connector 312 is connected to the lower surface of the pressure plate 301 through a pressure rod 306. Several linear drive members 304 are arranged around the outer surface of the air passage 201, and the linear drive members 304 are linearly driven connected to the pressure plate 301.

[0051] All linear drive components 304 are hydraulic cylinders;

[0052] The cleaning mechanism 3 also includes a liquid filling component, which is connected to the sleeve 308;

[0053] The liquid addition assembly includes an injection component, a manifold 310, a diverter 311, and a nozzle 313. Each sleeve 308 has a cavity inside. One cavity is connected to the manifold 310 through a diverter 311. The injection component is connected to the manifold 310. The bottom of the sleeve 308 is also provided with several nozzles. Each nozzle is connected to the cavity, and each nozzle is provided with a nozzle 313.

[0054] The pumping assembly includes a pumping pipe 303, a pumping pump 302, and an inlet pipe 305. The inlet pipe 305 passes through the upper part of the air pipe 201. The lower part of the inlet pipe 305 is connected to the manifold 310. The upper part of the inlet pipe 305 is connected to one side of the pumping pump 302. Both the pumping pump 302 and the inlet pipe 305 are detachably connected to the pressure plate 301. The pumping pipe 303 is provided on the other side of the pumping pump 302.

[0055] It also includes a sealing ring. A limiting platform 307 is provided at the lower part of the pressure rod 306, and a sealing ring is provided at the upper part of the limiting platform 307. The sealing ring is movably connected to the lower part of the sliding hole.

[0056] It also includes an exhaust pipe 4, which is connected to the outlet 204;

[0057] It also includes a PLC controller, which is electrically connected to the spray tower body 1, the photocatalytic oxidation mechanism 2 and the cleaning mechanism 3 respectively;

[0058] The PLC controller is electrically connected to the linear drive 304, the spray tower body 1, and the water pump 302.

[0059] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0060] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust removal device for an internal paper mill workshop, characterized in that: It includes a spray tower body, a photocatalytic oxidation mechanism, and a cleaning mechanism. The upper part of the spray tower body is provided with an air outlet. The photocatalytic oxidation mechanism is connected to the air outlet, and the cleaning mechanism is connected to the photocatalytic oxidation mechanism. The photocatalytic oxidation mechanism includes an air passage and several ultraviolet lamps. The lower part of the air passage has an inlet, and the upper part of the air passage has an outlet. The lower part of the air passage is connected to the outlet through the inlet. Several ultraviolet lamps are arranged around the inside of the air passage. The inner wall of the air passage is coated with a catalyst. The cleaning mechanism is connected to the ultraviolet lamps. The cleaning mechanism includes a moving component, a connector, and a scraping component. One of the scraping components is movably connected to the outer surface of one of the ultraviolet lamps. Two adjacent scraping components are connected through the connector, and the moving components are all driven to the connector.

2. The dust removal device inside the paper mill workshop as described in claim 1, characterized in that: The scraping assembly includes a sleeve and a scraper. The sleeve is fitted over the outside of the ultraviolet lamp tube, and the scraper is provided on the lower surface of the sleeve. The scraper is movably connected to the outer surface of the ultraviolet lamp tube, and adjacent sleeves are connected by the connector.

3. The dust removal device inside the paper mill workshop as described in claim 2, characterized in that: The moving component includes several linear drive members, pressure rods, and pressure plates. The upper part of the air passage is provided with several sliding holes adapted to the pressure rods. One pressure rod passes through the interior of one of the sliding holes. The upper surface of each connector is connected to the lower surface of the pressure plate through a pressure rod. Several linear drive members are arranged around the outer surface of the air passage, and the linear drive members are linearly driven connected to the pressure plate.

4. The dust removal device inside the paper mill workshop as described in claim 3, characterized in that: The cleaning mechanism also includes a liquid filling component, which is connected to the sleeve; The liquid addition assembly includes an inlet assembly, a manifold, a distributor, and a nozzle. Each sleeve has a cavity inside, and one cavity is connected to the manifold through a distributor. The inlet assembly is connected to the manifold. The bottom of the sleeve also has several nozzles, which are connected to the cavities. Each nozzle is equipped with a nozzle.

5. The dust removal device inside the paper mill workshop as described in claim 4, characterized in that: The pumping assembly includes a pumping pipe, a pumping pump, and an inlet pipe. The inlet pipe passes through the upper part of the air pipe, and the lower part of the inlet pipe is connected to the manifold. The upper part of the inlet pipe is connected to one side of the pumping pump. Both the pumping pump and the inlet pipe are detachably connected to the pressure plate. A pumping pipe is provided on the other side of the pumping pump.

6. The dust removal device inside the paper mill workshop as described in claim 4, characterized in that: It also includes a sealing ring, and a limiting platform is provided at the lower part of the pressure rod. A sealing ring is provided at the upper part of the limiting platform, and the sealing ring is movably connected to the lower part of the sliding hole.

7. The dust removal device inside the paper mill workshop as described in claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the spray tower body, the photocatalytic oxidation mechanism and the cleaning mechanism respectively.

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