Efficient dust removal and denitration device

Abstract

The utility model discloses a high-efficiency dedusting denitration device, including denitration mechanism, and preheat mechanism and dedusting mechanism assembled at denitration mechanism treatment front end, denitration mechanism includes denitration tank, denitration inlet pipe is fixedly installed at the bottom of denitration tank one side, the rectification heater is fixedly installed at the bottom inside denitration tank, the rectification heater is equipped with the rectification inlet pipe, the rectification inlet pipe is equipped with the rectification inlet pipe, and the rectification heater is equipped with the rectification inlet pipe. The utility model relates to the technical field of waste gas treatment. According to the efficient dust removal and denitration device, dust and particles on a filter screen can be scraped off through cooperation of a scraper and a transmission chain box, workers can conveniently and regularly clean the filter screen, the cleanliness of the filter screen is ensured, redundant heat during device operation can be recycled through cooperation of a heat absorption pipe and a preheating coil pipe, and the practicability of the device is improved. And the waste gas is preheated before denitration through the recycled waste heat, waste of heat energy is avoided through waste heat recycling, the waste gas can be rapidly heated to the designated temperature through the preheating device conveniently, and therefore the denitration efficiency of the waste gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely is a kind of high-efficiency dust removal denitrator. BACKGROUND

[0002] The high-temperature pump body is a key component of the high-temperature pump, and its design and material selection are crucial to the performance and reliability of the high-temperature pump. When treating exhaust gas, it needs to be denitrated, so a denitrating device is needed. The filter screen in the dust removal mechanism of the traditional denitrating device is inconvenient to clean, which prevents the staff from frequently cleaning the dust removal filter screen. When the dust removal screen is not cleaned for a long time, it will affect the passing efficiency of the exhaust gas and also affect the dust removal quality of the exhaust gas. When there are many particles in the exhaust gas, it will affect the denitration quality of the device. At the same time, it does not have the function of collecting waste heat during the operation of the device to preheat the exhaust gas, which causes waste of heat energy and a long heating time before denitration of the exhaust gas without preheating, thereby reducing the denitration efficiency of the device for the exhaust gas. Therefore, we designed a high-efficiency dust removal denitrator to solve the above problems. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of high-efficiency dust removal denitrator, solve the staff to the dust removal filter screen cleaning inconvenience, leading to the situation of the exhaust gas dust removal efficiency and quality decline, and not have the problem of waste heat collection after the operation of the device to preheat the exhaust gas.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: a kind of high-efficiency dust removal denitrator, including denitrating mechanism and the preheating mechanism and dust removal mechanism assembled in the front end of denitrating mechanism processing;

[0005] The denitrating mechanism includes a denitrating tank, a denitrating inlet pipe is fixedly installed at the bottom of one side of the denitrating tank, a rectifier heater is fixedly installed at the bottom inside the denitrating tank, a heating raw material pipe is fixedly installed at one side of the rectifier heater and penetrates the denitrating tank, catalyst discs are fixedly installed at equal distances above the inside of the denitrating tank, catalyst inlet pipes are fixedly installed outside the catalyst discs and penetrate the denitrating tank, a heat absorption pipe is fixedly installed at the top inside the denitrating tank through a mounting disc, a reflux pipe and a conduction pipe are fixedly installed at both ends of the heat absorption pipe and penetrate the denitrating tank, and a denitrating outlet pipe is fixedly installed at the top of the denitrating tank.

[0006] The dust removal mechanism comprises a dust removal box, air inlet covers and air outlet covers are fixedly installed at two ends of the dust removal box respectively, a dust removal plate is fixedly installed in the dust removal box, a filter screen is fixedly installed in the dust removal plate, a scraper is rotatably installed on the front face of the filter screen, a transmission chain box connected with the scraper is fixedly installed at the back of the dust removal plate, one end of the transmission chain box extends to the outside of the dust removal box, and a collecting cover matched with the scraper is fixedly installed at the bottom of the dust removal box.

[0007] The preheating mechanism comprises a preheating box, a preheating coil pipe is fixedly installed in the preheating box, a high-temperature pump is fixedly installed at the top of the preheating box, the input end of the high-temperature pump is connected with a conduction pipe, and one end of the preheating coil pipe is fixedly connected with a return pipe.

[0008] Preferably, a funnel cover extending to the inside of the collecting cover is fixedly installed at the bottom of the dust removal box, and a dust discharge cover is fixedly installed at the central position of the bottom of the collecting cover.

[0009] Preferably, a preheating inlet pipe connected with the air outlet cover is fixedly installed at one end of the preheating box, and a preheating outlet pipe connected with a denitration inlet pipe is fixedly installed at the other end of the preheating box.

[0010] Preferably, a flow distribution plate is fixedly installed at the bottom of each catalyst disc.

[0011] Preferably, a hand wheel is rotatably installed at the other end of the transmission chain box, and a rocker is rotatably installed on the outer side of the front face of the hand wheel.

[0012] Preferably, a heat preservation sleeve is sleeved on the outside of the conduction pipe, and a holding ring is fixedly installed at the outer wall of the heat preservation sleeve at equal intervals.

[0013] Compared with the prior art, the high-efficiency dust removal and denitration device has the following beneficial effects:

[0014] (1) The high-efficiency dust removal and denitration device can scrape off dust and particles on the filter screen through the cooperation between the scraper and the transmission chain box, facilitates regular cleaning of the filter screen, ensures the cleanliness of the filter screen, and avoids the accumulation of too much dust and particles on the dust removal net from affecting the passability and filtration quality of the waste gas.

[0015] (2) The cooperation of the heat absorption pipe and the preheating coil pipe can recycle excess heat during the operation of the device, preheat the waste gas before denitration through the recycled waste heat, avoid waste of heat energy of the device through recycling of the waste heat, and facilitate rapid heating of the waste gas to a specified temperature through preheating, so that the efficiency of denitration of the device on the waste gas is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is the section structure schematic view of the denitration tank of the utility model.

[0018] Figure 3 It is the section structure schematic view of the dust removal box of the utility model.

[0019] Figure 4 It is the scraper structure schematic view of the utility model.

[0020] Figure 5 It is the transmission chain box structure schematic view of the utility model.

[0021] Figure 6 It is the preheating box section structure schematic view of the utility model.

[0022] Figure 7 It is the heat preservation sleeve structure schematic view of the utility model.

[0023] In the drawing: 1, dust removal mechanism;101, dust removal box;102, air inlet cover;103, exhaust cover;104, collection cover;105, dust exhaust cover;106, hopper cover;2, preheating mechanism;201, preheating box;202, preheating inlet pipe;203, preheating outlet pipe;204, preheating coil pipe;205, high temperature pump;3, denitration mechanism;301, denitration tank;302, denitration inlet pipe;303, rectifier heater;304, heating raw material pipe;305, catalyst disc;306, catalytic inlet pipe;307, shunt plate;308, denitration outlet pipe;4, mounting disc;401, heat absorption pipe;402, backflow pipe;403, conduction pipe;404, heat preservation sleeve;5, dust removal plate;501, filter screen;502, scraper;503, transmission chain box;504, hand wheel;505, rocker. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment one

[0026] Please refer to Figure 2 , Figure 3 , Figure 4 And Figure 5The embodiment shown, proposes a high-efficiency dust removal and denitration device, which comprises a denitration mechanism 3, a preheating mechanism 2 and a dust removal mechanism 1 assembled at the front end of the denitration mechanism 3, the denitration mechanism 3 comprises a denitration tank 301, a denitration inlet pipe 302 is fixedly installed at the bottom of one side of the denitration tank 301, a rectifier heater 303 is fixedly installed at the bottom of the inside of the denitration tank 301, a heating raw material pipe 304 is fixedly installed at one side of the rectifier heater 303 and penetrates through the denitration tank 301, catalyst discs 305 are fixedly installed at the upper part of the inside of the denitration tank 301 at equal distances, catalyst inlet pipes 306 are fixedly installed at the outside of the catalyst discs 305 and penetrate through the denitration tank 301, a heat absorption pipe 401 is fixedly installed at the top of the inside of the denitration tank 301 through a mounting disc 4, backflow pipes 402 and conduction pipes 403 are fixedly installed at both ends of the heat absorption pipe 401 and penetrate through the denitration tank 301, a denitration outlet pipe 308 is fixedly installed at the top of the denitration tank 301, the dust removal mechanism 1 comprises a dust removal box 101, air inlet covers 102 and air outlet covers 103 are fixedly installed at both ends of the dust removal box 101, a dust removal plate 5 is fixedly installed at the inside of the dust removal box 101, a filter screen 501 is fixedly installed at the inside of the dust removal plate 5, scraper plates 502 are rotationally installed at the front of the filter screen 501, a transmission chain box 503 connected with the scraper plates 502 is fixedly installed at the back of the dust removal plate 5, one end of the transmission chain box 503 extends to the outside of the dust removal box 101, and a collection cover 104 used in cooperation with the scraper plates 502 is fixedly installed at the bottom of the dust removal box 101.

[0027] When in use, the air inlet cover 102 is connected with the external exhaust gas discharge pipeline, and the exhaust gas is conveniently introduced into the inside of the dust removal box 101 through the air inlet cover 102. The filter screen 501 is installed in the dust removal box 101 through the dust removal plate 5. The filter screen 501 can filter and remove dust and particles in the exhaust gas. The transmission chain box 503 can drive the scraper 502 to rotate on the surface of the filter screen plate 501. The dust and particles on the surface of the filter screen 501 can be scraped and cleaned through the rotation of the scraper 502, so that the staff can conveniently regularly clean the filter screen 501, and the filtering efficiency and ventilation smoothness of the filter screen 501 during use are ensured. The collection cover 104 can collect the dust and particles scraped by the scraper 502, and the dust and particles can be conveniently centrally treated later. The exhaust cover 103 can discharge the exhaust gas filtered and removed by the filter screen 501. The exhaust gas filtered and removed by the filter screen 501 enters the inside of the denitration tank 301 through the denitration inlet pipe 302. The rectifier heater 303 can heat the exhaust gas entering the denitration tank 301. The heating raw material pipe 304 conveniently allows the heated raw material to enter the rectifier heater 303. The heated exhaust gas flows upward into the catalyst disc 305. The catalyst disc 305 can catalyze the exhaust gas. The exhaust gas generates nitrogen and water after catalysis, so that the denitration treatment of the exhaust gas is realized. The generated nitrogen and water are discharged through the denitration outlet pipe 308. The heat absorption pipe 401 is fixedly installed above the inside of the denitration tank 301 through the mounting disc 4. The inside of the heat absorption pipe 401 is filled with heat conduction oil. The heat absorption pipe 401 and the heat conduction oil can recycle the excess heat in the denitration tank 301. The heated heat conduction oil is discharged through the conduction pipe 403.

[0028] Example two

[0029] On the basis of example one, as shown in Figure 6 The preheating mechanism 2 includes the preheating box 201. The preheating coil 204 is fixedly installed in the inside of the preheating box 201. The high-temperature pump 205 is fixedly installed on the top of the preheating box 201. The input end of the high-temperature pump 205 is connected with the conduction pipe 403. One end of the preheating coil 204 is fixedly connected with the backflow pipe 402.

[0030] In use, the waste gas filtered and dedusted by the dust removal box 101 is discharged into the preheating box 201, the high-temperature pump 205 can extract the high-temperature heat conducting oil in the conduction pipe 403 and discharge it into the preheating coil 204, and the waste gas entering the preheating box 201 is preheated by the preheating coil 204, one end of the preheating coil 204 is connected with the return pipe 402, so that the heat conducting oil after cooling can be discharged into the heat absorption pipe 401 again for repeated heat absorption, so that the preheating coil 204 can continuously preheat the waste gas filtered and dedusted, and the preheated waste gas enters the interior of the denitration tank 301 through the denitration inlet pipe 302, and the preheating facilitates the rectifier heater 303 to heat the waste gas quickly, so that the waste gas can quickly reach the denitration temperature, thereby improving the efficiency of the device in denitration of the waste gas, and facilitating the device to quickly denitrate the waste gas.

[0031] As shown in Figure 3 , the dust removal box 101 is fixedly installed with a funnel cover 106 extending into the collection cover 104, and the central position of the bottom of the collection cover 104 is fixedly installed with a dust discharge cover 105.

[0032] In use, the dust and particles hung by the scraper 502 fall into the collection cover 104, and the dust in the collection cover 104 is also avoided from being stirred up and entering the interior of the dust removal box 101 again, and the dust discharge cover 105 is connected with the pipeline outside, so that the dust in the collection cover 104 can be discharged through the dust discharge cover 105.

[0033] As shown in Figure 6 , one end of the preheating box 201 is fixedly installed with a preheating inlet pipe 202 connected with the exhaust cover 103, and the other end of the preheating box 201 is fixedly installed with a preheating outlet pipe 203 connected with the denitration inlet pipe 302.

[0034] In use, the preheating inlet pipe 202 facilitates the connection of the preheating box 201 with the dust removal box 101, and the preheating outlet pipe 203 facilitates the connection of the preheating box 201 with the denitration tank 301, so that the waste gas can enter the preheating box 201.

[0035] As shown in Figure 2 , the bottom of the catalyst disc 305 is fixedly installed with a flow dividing plate 307.

[0036] In use, the flow dividing plate 307 can divide the flow of the waste gas before entering the catalyst disc 305, and the uniformity of the waste gas entering the interior of the catalyst disc 305 is ensured by dividing the flow of the waste gas, thereby improving the quality of the catalysis of the waste gas in the catalyst disc 305.

[0037] As shown in Figure 4 and Figure 5As shown, the other end of the transmission chain box 503 is rotatably installed with a hand wheel 504, and the outer side of the front face of the hand wheel 504 is rotatably installed with a rocker 505.

[0038] In use, the hand wheel 504 facilitates the driving operation of the transmission chain box 503 by the staff, and the rocker 505 facilitates the rapid rotation of the hand wheel 504 by the staff, thereby improving the convenience of the staff when rapidly rotating the scraper 502.

[0039] As shown, Figure 7 As shown, the outside of the conduction pipe 403 is sleeved with a heat preservation sleeve 404, and the outer wall of the heat preservation sleeve 404 is fixedly installed with a holding ring at equal intervals.

[0040] In use, the heat preservation sleeve 404 can perform heat preservation treatment on the conduction pipe 403, and also avoids the occurrence of scalding due to accidental contact by personnel, and the holding ring can tighten and fix the heat preservation sleeve 404, thereby ensuring the stability of the heat preservation sleeve 404 in use.

[0041] Working principle: in use, the exhaust gas enters the inside of the dust removal box 101 through the air inlet cover 102, the dust removal plate 5 and the filter screen 501 can perform filtering treatment on the exhaust gas in the dust removal box 101, and the staff drives the scraper 502 to rotate on the surface of the filter screen 501 through the transmission chain box 503, so that the dust and particles filtered on the surface of the filter screen 501 can be scraped off, thereby facilitating the staff to regularly clean the filter screen 501, and the exhaust gas after dust removal enters the preheating box 201 through the air outlet cover 103, the heat absorption pipe 401 recovers the waste heat generated during the operation of the denitration tank 301 and conducts the waste heat to the preheating box 201 through the preheating coil 204, thereby realizing the functions of waste heat recovery and preheating of the device, and the rectifier heater 303 can rapidly heat the preheated exhaust gas to a specified temperature, thereby improving the denitration efficiency of the device and realizing efficient denitration treatment of the exhaust gas.

[0042] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A high-efficiency dust removal and denitrification device, characterized in that: The device comprises a denitration mechanism (3), a preheating mechanism (2) and a dust removal mechanism (1) which are assembled at the front end of the denitration mechanism (3). The denitration mechanism (3) comprises a denitration tank (301), a denitration inlet pipe (302) fixedly installed at the bottom of one side of the denitration tank (301), a rectifier heater (303) fixedly installed at the bottom of the inside of the denitration tank (301), a heating raw material pipe (304) fixedly installed at one side of the rectifier heater (303) and penetrating through the denitration tank (301), catalyst discs (305) fixedly installed at the upper part of the inside of the denitration tank (301) at equal distances, catalyst inlet pipes (306) fixedly installed at the outside of the catalyst discs (305) and penetrating through the denitration tank (301), a heat absorption pipe (401) fixedly installed at the top of the inside of the denitration tank (301) through a mounting disc (4), a reflux pipe (402) and a conduction pipe (403) fixedly installed at both ends of the heat absorption pipe (401) and penetrating through the denitration tank (301), and a denitration outlet pipe (308) fixedly installed at the top of the denitration tank (301). The dust removal mechanism (1) comprises a dust removal box (101), an air inlet cover (102) and an air outlet cover (103) fixedly installed at both ends of the dust removal box (101), a dust removal plate (5) fixedly installed at the inside of the dust removal box (101), a filter screen (501) fixedly installed at the inside of the dust removal plate (5), a scraper (502) rotationally installed at the front of the filter screen (501), a transmission chain box (503) fixedly installed at the back of the dust removal plate (5) and connected with the scraper (502), the transmission chain box (503) extending to the outside of the dust removal box (101) at one end, and a collection cover (104) fixedly installed at the bottom of the dust removal box (101) and used in cooperation with the scraper (502). The preheating mechanism (2) comprises a preheating box (201), a preheating coil pipe (204) fixedly installed at the inside of the preheating box (201), a high-temperature pump (205) fixedly installed at the top of the preheating box (201), the input end of the high-temperature pump (205) connected with the conduction pipe (403), and one end of the preheating coil pipe (204) fixedly connected with the reflux pipe (402).

2. The high-efficiency dust removal and denitration device according to claim 1, characterized in that: A funnel cover (106) is fixedly installed at the bottom of the inside of the dust removal box (101) and extends to the inside of the collection cover (104), and a dust removal cover (105) is fixedly installed at the central position of the bottom of the collection cover (104).

3. The high-efficiency dust removal and denitration device according to claim 1, characterized in that: One end of the preheating box (201) is fixedly installed with a preheating inlet pipe (202) connected with the air outlet cover (103), and the other end of the preheating box (201) is fixedly installed with a preheating outlet pipe (203) connected with the denitration inlet pipe (302).

4. The high-efficiency dust removal and denitration device according to claim 1, characterized in that: A flow distribution plate (307) is fixedly installed at the bottom of each of the catalyst discs (305).

5. The high-efficiency dust removal and denitration device according to claim 1, characterized in that: A hand wheel (504) is rotationally installed at the other end of the transmission chain box (503), and a rocker (505) is rotationally installed at the front of the outside of the hand wheel (504).

6. The high-efficiency dust removal and denitration device according to claim 1, characterized in that: The outer sleeve of the conducting pipe (403) is provided with a heat preservation sleeve (404), and the outer wall of the heat preservation sleeve (404) is fixedly installed with a holding ring at equal intervals.

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