Spraying dust removal device for dust-containing waste gas

Abstract

The utility model discloses a dust-containing waste gas spraying dust removal device and belongs to the technical field of environment-friendly facilities. Comprising a tank body, the side part of the tank body is provided with a dusty air introduction pipe interface, the upper part of the tank body is matched with a tank body upper seal head, the central position of the tank body upper seal head extends upwards to form an exhaust pipe interface, and the lower part of the tank body is matched with a sludge collecting hopper; one end of the circulating spraying mechanism forms a spraying end, the other end of the circulating spraying mechanism forms a liquid return end, and the spraying end and the liquid return end are located in the tank body cavity; the dust-containing air inlet pipe connector is arranged in the tank body cavity, the separation mechanism is arranged in the tank body cavity, the dust-containing air inlet pipe connector is arranged in the tank body cavity, the separation mechanism comprises a tubular solid-liquid separation device and a plate-type gas-liquid separation device, the tubular solid-liquid separation device is arranged in the position, corresponding to the lower portion of the dust-containing air inlet pipe connector, in the tank body cavity, and the plate-type gas-liquid separation device is arranged in the tank body cavity. The device has the advantages that flow resistance is eliminated, blockage is avoided, and maintenance-free cleaning tends to be avoided; the content of fog drops in discharged flue gas is reduced, and the dust removal effect on dust-containing waste gas is improved; and the influence on the circulating spraying mechanism is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection facilities, and in particular relates to a dust-containing waste gas spray dust removal device. Background Art

[0002] As is known in the industry, enterprises in many industries generate dust during the production process. Typical examples include steel mills, foundries, ferroalloy plants, refractory plants, iron mills, and metal parts polishing plants in the metallurgical industry, which must be equipped with corresponding dust removal devices to handle the generated dust (dust-laden air); for example, the steel industry, such as converter steel mills, blast furnace iron mills, and coking plant dry coke quenching (CDQ), will also generate a large amount of dust-laden air and require a reasonable dust removal system. Other industries, such as coal mining, chemicals, building materials, machinery, food, printing, and high-end electronic materials such as lithium battery powder production industries, will also generate dust-laden exhaust gas, which the applicant will not elaborate on one by one.

[0003] Spraying dust removal for dust-laden air has the following advantages but is not limited to them: high dust removal efficiency. When the same energy consumption is used, the efficiency of spraying dust removal is significantly higher than that of dry (also called "dry method") dust removal; wide adaptability and safety, it can purify dust-laden air with high specific resistance, high humidity, high temperature, flammable and explosive properties; it can achieve both dust removal and purification effects. Spraying dust removal can remove dust particles in dust-laden air, that is, dust-laden gas, as well as water vapor and certain toxic and harmful gas pollutants; the dust removal cost is relatively low, and because there are no overly stringent requirements on equipment and processes, it is widely favored by people.

[0004] There is no shortage of technical information on spraying dust removal for dust-laden air in the public Chinese patent literature. For example, CN210544058U recommends "a sludge dust removal device for converter steelmaking", which can treat a large amount of dust in the high-temperature exhaust gas of about 1450°C generated in the converter by spraying; CN112387053B provides "a spray dust removal tower for efficient dust removal", which sprays the coal-fired flue gas generated by equipment such as boilers, and has the technical effects summarized in paragraphs 0016 to 0020 of its specification; CN220194406U introduces "a spray dust removal device for dust-laden exhaust gas", which separates dust from the flue gas by spraying, reflecting the technical inspiration recorded in paragraphs 0012 to 0013 of its specification.

[0005] A typical example is the "a spray dust removal device" announced by CN210356519U. Compared with CN201596436U mentioned in paragraph 0003 of its specification, this patent solution can objectively realize the advantages summarized in paragraphs 0023 to 0024 of its specification, but it has the following shortcomings: since the tank cavity of the tank body is provided with a first sieve plate belonging to the category of filter elements and a second sieve plate with filter holes densely distributed and located on the upper part of the first sieve plate, during use, the gas-liquid flow resistance in the second sieve plate is relatively large and easy to be blocked, and it needs to be cleaned regularly or irregularly, which causes certain troubles to daily maintenance; since when the dust-containing flue gas is in the first and second sieve plates corresponding to the first and second sieve plates, the second sieve plate is easy to be blocked, and ... When the area between the second screens is introduced into the tank cavity of the tank, only the second screen plate plays the role of receiving spray dust removal, and the first screen plate only plays the role of intercepting sludge, so it actually only plays a single separation role, that is, it only plays the role of separating the solid particles or solid particles in the dusty flue gas by spraying the spray liquid, so it is difficult to reduce the moisture content in the air discharged to the outside of the tank to a level that meets the expectations; due to structural design reasons, when the sludge intercepted on the first screen plate is not enough to be smoothly discharged from the sewage outlet under the coordinated action of the vibration device and the sewage discharge device, and accumulation (accumulation) occurs, it will affect the water circulation system of the structural system of the spray assembly. In view of the above situation, it is necessary to make improvements, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0006] The task of the utility model is to provide a dust-containing waste gas spray dust removal device which helps to abandon the sieve plate structure in the form of filter elements to eliminate flow resistance and avoid clogging and tends to be cleaning-free, is beneficial to the use of solid-liquid separation and gas-liquid separation, thereby ensuring excellent treatment effect on dust-containing waste gas and significantly reducing the moisture content in the treated exhaust air, and is beneficial to the natural drop of sludge into the sludge collecting bucket to avoid affecting the circulating spraying.

[0007] The task of the utility model is accomplished in this way. A dust-containing waste gas spray dust removal device comprises a tank body, a dust-containing air introduction pipe interface for introducing the dust-containing waste gas to be treated into the tank body cavity of the tank body is formed on the side of the tank body, a tank body upper cover is connected to the upper part of the tank body, and an exhaust pipe interface for discharging the treated clean air that meets the standards is extended upward from the central position of the tank body upper cover, which is communicated with the tank body cavity, and a mud collecting bucket is connected to the lower part of the tank body; a circulating spray mechanism, which is arranged along one side of the tank body, and one end of the circulating spray mechanism One end is configured as a spray end, and the other end is configured as a liquid return end, the spray end and the liquid return end are located in the tank body cavity, wherein the spray end is located in the upper part of the tank body cavity, and the liquid return end is located in the lower part of the tank body cavity; a separation mechanism, which is arranged in the tank body cavity, characterized in that the separation mechanism includes a tubular solid-liquid separation device and a plate-type gas-liquid separation device, the tubular solid-liquid separation device is arranged in the tank body cavity at a position corresponding to the lower side of the dust-laden air inlet pipe interface, and the plate-type gas-liquid separation device is arranged in the tank body cavity at a position corresponding to the lower direction of the tank body upper head.

[0008] In a specific embodiment of the present utility model, the position of the tubular solid-liquid separation device in the tank body cavity is on the lower left side of the tank body cavity and corresponds to the upper left of the mud collecting bucket, and the position of the plate type gas-liquid separation device in the tank body cavity is set in the upper part of the tank body cavity and corresponds to the upper right of the mud collecting bucket, and the plate type gas-liquid separation device and the tubular solid-liquid separation device form a positional relationship in which they are arranged correspondingly from top to bottom.

[0009] In another specific embodiment of the present invention, the tubular solid-liquid separation device includes a solid-liquid separation sewage pipe frame support beam longitudinal plate, a group of solid-liquid separation sewage pipe frame support beams and a group of solid-liquid separation sewage pipes. The rear side of the solid-liquid separation sewage pipe frame support beam longitudinal plate in the height direction is fixed to the cavity wall of the tank body cavity, a group of solid-liquid separation sewage pipe frame support beams are fixed between the cavity wall of the tank body cavity and the opposite side of the solid-liquid separation sewage pipe frame support beam longitudinal plate in a longitudinal and transverse spacing state, a group of solid-liquid separation sewage pipes are distributed in a matrix manner and each solid-liquid separation sewage pipe is fixed to the group of solid-liquid separation sewage pipe frame support beams in a state where the upper end of the solid-liquid separation sewage pipe is inclined to the left and the lower end of the solid-liquid separation sewage pipe is inclined to the right, and the number of the solid-liquid separation sewage pipes is a plurality of rows distributed from left to right and each row has a plurality of rows distributed from the cavity wall of the tank body cavity to the solid-liquid separation sewage pipe frame support beam longitudinal plate. Added multiple roots; the spray end of the circulating spray mechanism corresponds to the top of the group of solid-liquid separation drain pipes; the plate-type gas-liquid separation device includes a gas-liquid separation plate frame fixing plate, a gas-liquid separation plate frame and a group or multiple groups of gas-liquid separation plates, the rear side of the gas-liquid separation plate frame fixing plate in the height direction is fixed to the cavity wall of the tank cavity, and corresponds to the top of the longitudinal plate of the solid-liquid separation drain pipe frame support beam in a longitudinal state, the number of gas-liquid separation plate frames is equal to the number of gas-liquid separation plate groups, and is fixed between the cavity wall of the tank cavity and the opposite side of the gas-liquid separation plate frame fixing plate, the number of gas-liquid separation plates in each group is a plurality of plates spaced apart from each other and each is fixed to the gas-liquid separation plate frame in a tilted state with the upper part to the right and the lower part to the left; the liquid return end of the circulating spray mechanism corresponds to the bottom of the gas-liquid separation plate.

[0010] In another specific embodiment of the present invention, the lumen of each solid-liquid separation drain pipe of the group of solid-liquid separation drain pipes passes through from the upper part to the lower part and the cross-sectional shape of the solid-liquid separation pipe is a regular hexagon.

[0011] In another specific embodiment of the utility model, the angle α at which the upper end of the group of solid-liquid separation drainage pipes is inclined to the left and the lower end is inclined to the right is 45-60°; the angle β at which the upper part of the gas-liquid separation plate is inclined to the right and the lower part is inclined to the left is 45-60°.

[0012] In another specific embodiment of the utility model, the circulating spray mechanism includes a circulating pump, a circulating pump water inlet pipe, a circulating pump water inlet pipe liquid inlet nozzle, a circulating pump water outlet pipe and a circulating pump water outlet pipe spray head. The circulating pump is arranged along with one side of the tank body and is supported on the floor or on a bracket arranged on the floor when in use. One end of the circulating pump water inlet pipe facing the circulating pump is connected to the circulating pump water inlet of the circulating pump, and one end of the circulating pump water inlet pipe facing the tank body extends into the tank body cavity and is located on the right side of the longitudinal plate of the solid-liquid separation drainage pipe frame support beam and the upper end is constituted as the The return liquid end, the liquid inlet nozzle of the circulating pump water inlet pipe is fixed to the return liquid end, the water inlet of the liquid inlet nozzle of the circulating pump water inlet pipe is facing upward, one end of the circulating pump water outlet pipe facing the circulating pump is connected with the water outlet of the circulating pump, and one end of the circulating pump water outlet pipe facing the tank body extends into the tank body cavity and is located on the left side of the gas-liquid separation plate frame fixing plate and is folded downward to form the return liquid end, the circulating pump water outlet pipe spray head is fixed to the return liquid end, the spray hole of the circulating pump water outlet pipe spray head is facing downward, wherein the circulating pump water outlet pipe spray head and the circulating pump water inlet pipe liquid inlet nozzle form a diagonal position relationship with each other.

[0013] In a more specific embodiment of the present invention, the upper edge portion of the liquid inlet nozzle of the circulating pump inlet pipe and the surrounding areas of the liquid inlet nozzle of the circulating pump inlet pipe are formed into a serrated shape; a circulating pump inlet pipe opening and closing valve is provided on the pipeline of the circulating pump inlet pipe and on the left side of the circulating pump water inlet, and a one-way valve and a flow meter are provided in sequence from left to right on the pipeline of the circulating pump outlet pipe and on the right side of the circulating pump water outlet.

[0014] In a further specific embodiment of the utility model, a dust-laden air inlet pipe limiting sleeve is formed on the tank body and around the dust-laden air inlet pipe interface, and the space between the inner wall of the dust-laden air inlet pipe limiting sleeve and the outer wall of the dust-laden air inlet pipe interface constitutes a dust-laden air inlet pipe insertion cavity; a sight glass is arranged on the upper cover of the tank body; a tank cavity liquid level detector is arranged on the upper cover of the tank body, and the tank cavity liquid level detector has an upper liquid level probe, a lower liquid level probe and a common terminal extending into the tank cavity.

[0015] In yet another specific embodiment of the present invention, the mud collecting bucket includes a left mud collecting bucket and a right mud collecting bucket, the group of solid-liquid separation drainage pipes of the tubular solid-liquid separation device corresponds to the top of the left mud collecting bucket, the plate-type gas-liquid separation device corresponds to the top of the right mud collecting bucket, a left mud collecting bucket mud outlet extends from the bottom of the left mud collecting bucket, and a right mud collecting bucket mud outlet extends from the bottom of the right mud collecting bucket; a sludge discharge mechanism is connected at the position corresponding to the left mud collecting bucket mud outlet and the right mud collecting bucket mud outlet.

[0016] In yet another specific embodiment of the present invention, the left mud collecting bucket and the right mud collecting bucket are each supported on the ground or on a bracket arranged on the ground by mud collecting bucket support legs extending below them; the sludge discharge mechanism includes an auger shaft drive motor, an auger shaft drive reduction box, an auger barrel, a spiral sheet shaft, a spiral sheet and a sludge discharge port, the auger shaft drive motor is transmission-connected to the auger shaft drive reduction box and the auger shaft drive reduction box together with the auger shaft drive motor is arranged on the reduction box seat, and the left end of the spiral sheet shaft rotates to support the ground The left support seat of the spiral blade shaft is supported on the left end of the auger barrel, and the right end of the spiral blade shaft extends to the outside of the right end of the auger barrel through the auger barrel cavity of the auger barrel and is connected to the auger shaft drive shaft reducer of the auger shaft drive reducer through a coupling. The mud outlet of the left mud collecting bucket and the mud outlet of the right mud collecting bucket are fixedly connected to the auger barrel and communicate with the auger barrel cavity of the auger barrel. The spiral blade is directly formed on the spiral blade shaft in the auger barrel cavity, and the sludge discharge outlet is located on the downward side of the left end of the auger barrel and is communicated with the auger barrel cavity.

[0017] The technical effect of the technical solution provided by the utility model is that: since the structural system of the separation mechanism adopts a tubular solid-liquid separation device and a plate-type gas-liquid separation device, and the tubular solid-liquid separation device is arranged in the tank cavity of the tank body at a position corresponding to the lower part of the dust-laden air introduction pipe interface, and the plate-type gas-liquid separation device is arranged in the tank cavity at a position corresponding to the lower part of the tank upper head, and the plate-type gas-liquid separation device and the tubular solid-liquid separation device form a positional relationship of upper and lower diagonal arrangement with each other, the sieve plate structure in the form of filter element conventionally used in the prior art is abandoned to eliminate flow resistance, avoid blockage, and tend to be free of inspection and cleaning; since the solid-liquid Separation and gas-liquid separation are used together, so in the area where the tubular solid-liquid separation device is located, the sludge enters the mud collecting hopper below, so that the water in the tank cavity can be clear, and because in the area where the plate-type gas-liquid separation device is located, the droplets in the flue gas carrying droplets after spray washing and purification can be captured and gathered into large droplets to flow downward, effectively reducing the droplet content in the exhaust flue gas and also having a certain effect of fully eliminating dust particles, thereby improving the dust removal effect on dust-containing exhaust gas; because the sludge can fall naturally and smoothly into the mud collecting hopper during the spray dust removal process, there is no need for the assistance of other devices, thereby avoiding affecting the circulating spray mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0019] Figure 2 for Figure 1 sectional view of .

[0020] In the figure: 1. tank body, 11. tank body cavity, 12. dust-containing air introduction pipe interface, 13. tank body upper head, 131. exhaust pipe interface, 132. tank cavity liquid level detector, 133. sight glass, 1321. upper liquid level probe, 1322. lower liquid level probe, 1323. common terminal, 14. mud collecting bucket, 141. left mud collecting bucket, 1411. mud outlet of left mud collecting bucket, 142. right mud collecting bucket, 1421. mud outlet of right mud collecting bucket, 15. dust-containing air introduction pipe limiting sleeve, 16. dust-containing air introduction pipe insertion cavity; 2. circulating spray mechanism, 21. circulating pump, 211. circulating pump water inlet, 212. circulating pump water outlet, 22. circulating pump water inlet pipe, 221. circulating pump water inlet pipe opening and closing valve, 23. circulating pump water inlet pipe liquid inlet nozzle, 24. circulating pump water outlet, 241. one-way valve , 242. Flow meter, 25. Sprinkler head of circulating pump outlet pipe; 3. Separation mechanism, 31. Tubular solid-liquid separation device, 311. Vertical plate of solid-liquid separation sewage pipe frame support beam, 312. A group of solid-liquid separation sewage pipe frame support beam, 313. A group of solid-liquid separation sewage pipes, 32. Plate-type gas-liquid separation device, 321. Gas-liquid separation plate frame fixing plate, 322. Gas-liquid separation plate frame, 323. Gas-liquid separation plate, 4. Sludge discharge mechanism, 41. Auger shaft drive motor, 42. Auger shaft drive reducer, 421. Reducer seat, 422. Auger shaft drive shaft reducer final power output shaft, 43. Auger barrel, 431. Auger barrel cavity, 44. Spiral blade shaft, 441. Spiral blade shaft left support seat, 442. Coupling, 45. Spiral blade, 46. Sludge discharge port; 5. Water level. DETAILED DESCRIPTION

[0021] In order to more clearly understand the technical essence and beneficial effects of the present invention, a detailed description will be given below in the form of embodiments. However, the description of the embodiments is not a limitation on the scheme of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical scheme of the present invention.

[0022] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 and Figure 2 The position state is taken as a reference, and therefore it cannot be understood as a special limitation on the technical solution provided by the utility model.

[0023] See also Figure 1 and Figure 2, showing a tank body 1 preferably but not absolutely limited to a cylindrical shape, a dust-containing air inlet pipe interface 12 is formed on the side of the tank body 1 (the left side of the position state shown in the figure) for introducing the dust-containing waste gas to be treated (i.e. to be treated) into the tank body cavity 11 of the tank body 1, and a tank body upper head 13 is connected to the upper part of the tank body 1. An exhaust pipe interface for discharging the treated clean air that meets the standards extends upward from the central position of the tank body upper head 13 and is communicated with the aforementioned tank body cavity 11. 131, and a mud collecting bucket 14 is connected to the lower part of the tank body 1; a circulating spray mechanism 2 is shown, which is arranged on one side of the aforementioned tank body 1, and one end of the circulating spray mechanism is constituted as a spray end, and the other end is constituted as a liquid return end, the spray end and the liquid return end are located in the aforementioned tank body cavity 11, wherein the spray end is located at the upper part of the tank body cavity 11, and the liquid return end is located at the lower part of the tank body cavity 11; a separation mechanism 3 is shown, and the separation mechanism 3 is arranged in the aforementioned tank body cavity 11.

[0024] As a preferred solution, the connection between the tank body upper head 13 and the tank body 1 can be made by flange sealing connection. Specifically, a circle of tank body upper head flange edge expanding outward is formed at the lower part of the tank body upper head 13 and around the tank body upper head 13, and a tank body flange edge is formed at the upper edge of the tank body 1 and around the tank body 1. Bolt holes are provided at intervals at the tank body upper head flange edge and around the tank body flange edge and at corresponding positions. Bolts are provided on each bolt hole. A sealing ring with bolt holes is added between the two, and the tank body upper head flange edge is fixed to the tank body flange edge by bolts. Since the upper part of the aforementioned mud collecting bucket 14 is connected to the lower part of the tank body 1 in the same way, it will not be described in detail. This structural form is helpful for maintenance when necessary.

[0025] The dust-containing exhaust gas mentioned above is the exhaust gas in the related fields mentioned by the applicant in the background technology column, especially the dust-containing exhaust gas in the metallurgical and steel industries. For example, it can be used to treat the exhaust gas discharged from CN102000637B (horizontal cyclone dust collector) in the steel industry, and the exhaust gas discharged from CN102009004B (vertical and horizontal combined cyclone dust collector), as well as the exhaust gas discharged from CN219502979U (multi-tube dust collector with vibration cleaning), etc., which will not be repeated here.

[0026] As the technical key points of the technical solution provided by the present utility model: the aforementioned separation mechanism 3 includes a tubular solid-liquid separation device 31 and a plate-type gas-liquid separation device 32, the tubular solid-liquid separation device 31 is arranged in the aforementioned tank cavity 11 at a position corresponding to the lower side of the aforementioned dust-laden air inlet pipe interface 12, and the aforementioned plate-type gas-liquid separation device 32 is arranged in the aforementioned tank cavity 11 at a position corresponding to the lower direction of the aforementioned tank upper head 13.

[0027] Depend on Figure 1 and Figure 2 As shown, the aforementioned tubular solid-liquid separation device 31 is positioned in the aforementioned tank cavity 11 at the lower left side of the tank cavity 11 and corresponds to the upper left side of the aforementioned mud collecting bucket 14, while the aforementioned plate type gas-liquid separation device 32 is positioned in the aforementioned tank cavity 11 at the upper part of the tank cavity 11 and corresponds to the upper right side of the mud collecting bucket 14, and the plate type gas-liquid separation device 32 and the tubular solid-liquid separation device 31 form a positional relationship in which they are arranged correspondingly from top to bottom.

[0028] See you next time Figure 1 and Figure 2 The aforementioned tubular solid-liquid separation device 31 comprises a solid-liquid separation drainage pipe frame support beam longitudinal plate 311, a group of solid-liquid separation drainage pipe frame support beams 312 and a group of solid-liquid separation drainage pipes 313. The rear side of the solid-liquid separation drainage pipe frame support beam longitudinal plate 311 in the height direction is fixed to the cavity wall of the aforementioned tank cavity 11, and forms a vertical relationship with the cavity wall of the tank cavity 11. The group of solid-liquid separation drainage pipe frame support beams 312 are spaced apart from each other longitudinally and transversely (i.e., a spacing distance is maintained in the longitudinal and transverse directions, and the transverse spacing distance should be The solid-liquid separation drain pipe 313 is fixed between the cavity wall of the aforementioned tank cavity 11 and the opposite side of the vertical plate 311 of the solid-liquid separation drain pipe frame support beam. A group of solid-liquid separation drain pipes 313 are distributed in a matrix and each solid-liquid separation drain pipe 313 is fixed to the aforementioned group of solid-liquid separation drain pipe frame support beams 312 in a state where the upper end of the solid-liquid separation drain pipe 313 is inclined to the left and the lower end of the solid-liquid separation drain pipe 313 is inclined to the right. The number of the solid-liquid separation drain pipes 313 is a plurality of rows distributed from left to right and each row has a cavity wall of the aforementioned tank cavity 11. The plurality of longitudinal plates 311 of the support beam of the solid-liquid separation dripping pipe frame are successively increased; the aforementioned spraying end of the aforementioned circulating spraying mechanism 2 corresponds to the upper side of the aforementioned group of solid-liquid separation dripping pipes 313; the aforementioned plate-type gas-liquid separation device 32 includes a gas-liquid separation plate frame fixing plate 321, a gas-liquid separation plate frame 322 and a group or a plurality of gas-liquid separation plates 323, the rear side of the gas-liquid separation plate frame fixing plate 321 in the height direction is fixed to the cavity wall of the aforementioned tank cavity 11, and corresponds to the aforementioned solid-liquid separation dripping pipe in a longitudinal state. Above the longitudinal plate 311 of the tube frame support beam, the number of gas-liquid separation plate frames 322 is equal to the number of groups of gas-liquid separation plates 323, and is fixed between the cavity wall of the aforementioned tank cavity 11 and the opposite side of the aforementioned gas-liquid separation plate frame fixing plate 321. The number of each group of the aforementioned gas-liquid separation plates 323 is a plurality of plates distributed at intervals from each other and each is fixed to the aforementioned gas-liquid separation plate frame 322 in a state of being inclined to the right at the upper part and to the left at the lower part; the aforementioned liquid return end of the aforementioned circulating spray mechanism 2 corresponds to the bottom of the gas-liquid separation plate 323.

[0029] The number of the group of solid-liquid separation drip pipes 313 mentioned above is not limited by the number shown in the figure. The aforementioned gas-liquid separation plates 323 have two groups, upper and lower, and each group has a plurality of plates arranged from left to right or from right to left, but they should not be limited by the number shown in the figure. In addition, the fixing method of the solid-liquid separation drip pipe frame support beam longitudinal plate 311 and the group of solid-liquid separation drip pipe frame support beams 312 of the structural system of the tubular solid-liquid separation device 31 mentioned above are preferably welded, and because the group of solid-liquid separation drip pipes 313 is a non-metallic tube, it is preferably supported at the bottom and embedded in the middle. The gas-liquid separation plate frame fixing plate 321 and the gas-liquid separation plate frame 322 of the plate-type gas-liquid separation device 32 are also fixed by welding, while the gas-liquid separation plate 323 is embedded.

[0030] In this embodiment, the lumen of each solid-liquid separation drain pipe of the aforementioned set of solid-liquid separation drain pipes 313 runs through from the upper part to the lower part and the cross-section of the solid-liquid separation pipe is a regular hexagon. Figure 1 As shown, these solid-liquid separation drain pipes 313 are assembled together like a honeycomb.

[0031] The angle α at which the upper end of the aforementioned set of solid-liquid separation drip pipes 313 tilts toward the left and the lower end tilts toward the right is preferably 45-60°, preferably 48-58°, more preferably 50-56°, and most preferably 53°. 53° is selected in this embodiment; the angle β at which the upper part of the aforementioned gas-liquid separation plate 323 tilts toward the right and the lower part tilts toward the left is preferably 45-60°, which is specifically as described in angle α.

[0032] Due to the inclined setting of a group of solid-liquid separation drain pipes 313, the sludge attached to the pipe wall can be smoothly dropped (slid down) to the sludge collecting bucket 14 due to the action of gravity; the droplets in the waste gas such as flue gas are captured by the gas-liquid separation plate 323 to reduce the concentration (content) of the droplets in the waste gas. When the droplets reach the gas-liquid separation plate 323, the small droplets can be gathered into large droplets and fall downward. If there are still trace dust and dirt, they will also sink into the sludge collecting bucket.

[0033] In addition, in order to ensure the service life of the aforementioned set of solid-liquid separation drainage pipes 313, this embodiment uses a PE pipe with abrasion resistance.

[0034] See you next time Figure 1 and Figure 2The aforementioned circulation spray mechanism 2 includes a circulation pump 21, a circulation pump water inlet pipe 22, a circulation pump water inlet pipe liquid inlet nozzle 23, a circulation pump water outlet pipe 24 and a circulation pump water outlet pipe spray head 25. The circulation pump 21 is arranged along with one side of the aforementioned tank body 1 and is supported on the floor when in use, but can also be supported on a bracket arranged on the floor. One end of the circulation pump water inlet pipe 22 facing the circulation pump 21 is connected to the circulation pump water inlet 211 of the circulation pump 21, and one end of the circulation pump water inlet pipe 22 facing the tank body 1 extends into the aforementioned tank body cavity 11 and is located on the right side of the aforementioned solid-liquid separation drainage pipe frame support beam longitudinal plate 311, and the upper end constitutes the aforementioned liquid return end. The circulating pump water inlet pipe liquid inlet nozzle 23 is fixed to the liquid return end, and the liquid inlet of the circulating pump water inlet pipe liquid inlet nozzle 23 faces upward, and the circulating pump water outlet pipe 24 faces one end of the circulating pump 21 and is matched with the circulating pump water outlet 212, and the circulating pump water outlet pipe 24 extends to the tank body 1 to the tank body cavity 11 and is located on the left side of the gas-liquid separation plate frame fixing plate 321 and folds downward to form the aforementioned liquid return end, and the circulating pump water outlet pipe spray head 25 is fixed to the liquid return end, and the spray hole of the circulating pump water outlet pipe spray head 25 faces downward, wherein the circulating pump water outlet pipe spray head 25 and the circulating pump water inlet pipe liquid inlet nozzle 23 form a diagonal position relationship with each other. As shown in the figure, the gas-liquid separation plate frame fixing plate 321 and the solid-liquid separation drainage pipe frame support beam longitudinal plate 311 tend to correspond to each other up and down, but there is a spacing distance between the two.

[0035] The upper edge of the aforementioned circulating pump water inlet pipe liquid inlet nozzle 23 and the surrounding of the circulating pump water inlet pipe liquid inlet nozzle 23 are formed in a serrated shape. This structural form will not produce a surging situation, and can prevent the sludge in the sludge collecting bucket 14 from floating upward (that is, the sludge in the sludge collecting bucket 14 is not disturbed), because the water flow can enter the circulating pump water inlet pipe liquid inlet nozzle 23 with an overflow effect; a circulating pump water inlet pipe opening and closing valve 221 is arranged on the pipeline of the aforementioned circulating pump water inlet pipe 22 and at a position on the left side of the aforementioned circulating pump water inlet 211, and a one-way valve 241 and a flow meter 242 are arranged from left to right on the pipeline of the aforementioned circulating pump water outlet pipe 24 and at a position on the right side of the aforementioned circulating pump water outlet 212.

[0036] Still see Figure 1 and Figure 2A dust-containing air introduction pipe limiting sleeve 15 is formed on the aforementioned tank body 1 and at the position around the aforementioned dust-containing air introduction pipe interface 12. The space between the inner wall of the dust-containing air introduction pipe limiting sleeve 15 and the outer wall of the dust-containing air introduction pipe interface 12 constitutes a dust-containing air introduction pipe insertion cavity 16. When the dust-containing air introduction pipe (not shown in the figure) is inserted into the dust-containing air introduction pipe interface 12 from the dust-containing air introduction pipe insertion cavity 16, it can be limited by the dust-containing air introduction pipe limiting sleeve 15 to prevent the dust-containing air introduction pipe from breaking away from the dust-containing air introduction pipe interface 12. Of course, the dust-containing air introduction pipe interface 12 is not limited to the structural form shown in the figure in this embodiment. For example, its outer wall can be threaded, and a structural form like a quick connector of fire-fighting equipment can be adopted, etc. A sight glass 133 is provided on the tank body upper head 13 of the aforementioned tank body 1.

[0037] Since the water in the tank cavity 11 will gradually decrease during the actual use of the utility model, in order to prevent the water from decreasing to a level that does not affect the normal spraying and dust removal, it is necessary to add a reasonable amount of water into the tank cavity 11, and the technical measures for water replenishment are: a tank cavity liquid level detector 132 is provided on the upper end cap 13 of the tank body, and the tank cavity liquid level detector 132 has an upper liquid level probe 1321 and a lower liquid level probe 1322 extending into the tank cavity 11 and a common terminal 1323. According to professional common sense, the tank cavity liquid level detector 132 is electrically connected to the PLC (programmable controller) of the electrical controller by a circuit, and the upper liquid level probe 1321, the lower liquid level probe 1322 and the common terminal 1323 extending into the tank cavity 11 collect signals of the liquid level (water level) in the tank cavity 11 to ensure that the water in the tank cavity 11 is always at the level required by the process. Since the functions of the tank cavity liquid level detector 132, the upper and lower liquid level probes 1321, 1322 and the common terminal 1323 belong to the conventional technical scope, the applicant only briefly describes them below. For example, when the water level 5 ( Figure 2 (shown) that is, the lower liquid level is connected to the aforementioned common terminal 1323, which proves that the lower liquid level has dropped to the lower liquid level position (degree). Similarly, when the upper liquid level is connected to the common terminal 1323, it proves that the upper liquid level has reached the upper liquid level position. For example, when the liquid level in the tank cavity 11 rises to the highest limit, the upper liquid level probe 1321 senses (detects) and feeds back the signal to the electrical controller, and the electrical controller sends a signal to the automatic water replenishment valve (not shown in the figure) configured in the tank 1 or other parts such as the pipeline configured in the aforementioned circulating pump outlet pipe 24, so that the automatic water replenishment valve, which is also electrically connected to the electrical controller and controlled by the electrical controller, automatically opens to replenish water into the tank cavity 11, and vice versa.

[0038] The applicant needs to explain that designing the above-mentioned tank cavity liquid level detector 132 is not the only option. For example, other methods can be used, such as removing the matching pipe at the exhaust pipe interface 131 and replenishing water into the tank cavity 11 through the exhaust pipe interface 131 to a level that basically meets the requirements, etc., as long as the water level in the tank cavity 11 can meet the requirements for normal spraying.

[0039] Depend on Figure 1 and Figure 2 As shown, the aforementioned mud collecting hopper 14 includes a left mud collecting hopper 141 and a right mud collecting hopper 142, the aforementioned group of solid-liquid separation drainage pipes 313 of the aforementioned tubular solid-liquid separation device 31 corresponds to the top of the left mud collecting hopper 141, and the aforementioned plate-type gas-liquid separation device 32 corresponds to the top of the right mud collecting hopper 142. A left mud collecting hopper mud outlet 1411 extends from the bottom of the left mud collecting hopper 141, and a right mud collecting hopper mud outlet 1421 extends from the bottom of the right mud collecting hopper 142; a sludge discharge mechanism 4 is connected at the position corresponding to the left mud collecting hopper mud outlet 1411 and the right mud collecting hopper mud outlet 1421.

[0040] The left mud collecting bucket 141 and the right mud collecting bucket 142 are supported on the floor or supported on a bracket arranged on the floor by mud collecting bucket support legs extending below them. The specific selection method can be flexibly determined according to the actual conditions of the use site.

[0041] See you next time Figure 1 and Figure 2 The aforementioned sludge discharge mechanism 4 includes an auger shaft drive motor 41, an auger shaft drive reduction box 42, an auger barrel 43, a spiral sheet shaft 44, a spiral sheet 45 and a sludge discharge port 46. The auger shaft drive motor 41 is transmission-connected to the auger shaft drive reduction box 42 and the auger shaft drive reduction box 42 is arranged on a reduction box seat 421 together with the auger shaft drive motor 41. The left end of the spiral sheet shaft 44 is rotatably supported on a spiral sheet shaft left support seat 441 located at the left end of the auger barrel 43, and the right end of the spiral sheet shaft 44 passes through the auger barrel cavity of the auger barrel 43. 431 extends to the outside of the right end of the auger barrel 43 and is transmission-connected to the auger shaft drive shaft reducer final power output shaft 422 of the auger shaft drive reducer 42 through a coupling 442. The aforementioned left mud collecting bucket mud outlet 1411 and the right mud collecting bucket mud outlet 1421 are fixedly connected to the auger barrel 43 and communicate with the auger barrel cavity 431 of the auger barrel 43. The spiral blade 45 is directly formed on the spiral blade shaft 44 in the aforementioned auger barrel cavity 431. The sludge discharge outlet 46 is located on the downward side of the left end of the auger barrel 43 and communicates with the auger barrel cavity 431.

[0042] Taking the dust removal of waste flue gas from a steel production enterprise as an example, the applicant makes the following explanation: the dusty flue gas led out by the above-mentioned CN102000637B (horizontal cyclone dust collector), CN102009004B (vertical and horizontal combined cyclone dust collector) or CN219502979U (multi-tube dust collector with vibration cleaning) is connected to the dusty air inlet pipe interface 12 through a pipeline (an opening and closing valve is preferably provided on the pipeline), and the dusty flue gas enters the tank cavity 11 of the utility model. At the same time, the circulating spray mechanism 2 is in working state, specifically: the circulating pump motor of the circulating pump 21 electrically controlled by the aforementioned electrical controller is working, and the circulating pump 21 is working. At this time, since the circulating pump water inlet pipe opening and closing valve 221 on the circulating pump water inlet pipe 22 is in an open state, water is sequentially introduced into the liquid through the circulating pump water inlet pipe Nozzle 23, circulating pump water inlet pipe 22, circulating pump water inlet 211, circulating pump water outlet 212, one-way valve 241, flow meter 242 and circulating pump water outlet pipe 24, until it is sprayed out from the circulating pump water outlet pipe sprinkler head 25, the dust-containing air (dust-containing flue gas in this application example) introduced by the dust-containing air inlet pipe interface is sprayed to reduce dust, and the dust in the sprayed dust-containing flue gas falls to a group of solid-liquid separation drain pipes 313 in a state of being entrained by water, and the sludge precipitated and attached to the pipe wall of the group of solid-liquid separation drain pipes 313 arranged obliquely under the action of gravity will smoothly flow downward to the mud collecting hopper 14 below, and the flue gas after spraying, washing and purification entrains the droplets and passes through the gas-liquid separation plate 323 of the aforementioned plate-type gas-liquid separation device 32, and the gas-liquid separation plate 323 captures the droplets in the flue gas to reduce the droplet concentration in the flue gas. And the process of small water droplets gathering into large water droplets and flowing down is completed on the blade-shaped gas-liquid separation plate 323. The purified flue gas is discharged from the exhaust pipe interface 131 and led out from the pipeline matched with the exhaust pipe interface 131. In the above working process, the liquid inlet nozzle of the circulating pump inlet pipe continuously feeds liquid, and the sprinkler head 25 of the circulating pump outlet pipe continuously sprays, that is, continuously sprays to form a cycle.

[0043] When the aforementioned tubular solid-liquid separation device 31 and the plate-type gas-liquid separation device 32 work together for a period of time and the sludge in the sludge collecting bucket 14 needs to be discharged, the auger shaft drive motor 41, which is also electrically connected to the electrical controller and controlled by the electrical controller, drives the auger shaft drive reduction box 42, and the final power output shaft 422 of the auger shaft drive shaft reduction box drives the spiral blade shaft 44, and the spiral blade 45 formed on the spiral blade shaft 44 and located in the auger barrel cavity 431 discharges the sludge falling or flowing from the sludge collecting bucket 14 to the sludge discharge port 46 to the vehicle, connecting pipeline or sludge container corresponding to the sludge discharge port 46 for transportation. A preferred solution can also be provided with a control valve at the sludge discharge port 46.

[0044] In summary, the technical solution provided by the utility model makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A dust-containing waste gas spray dust removal device, comprising a tank body (1), a dust-containing air introduction pipe interface (12) for introducing the dust-containing waste gas to be treated into the tank body cavity (11) of the tank body (1) is formed on the side of the tank body (1), a tank body upper cover (13) is connected to the upper part of the tank body (1), an exhaust pipe interface (131) connected to the tank body cavity (11) and used to discharge the treated clean air that meets the standards is extended upward from the central position of the tank body upper cover (13), and a mud collecting bucket (14) is connected to the lower part of the tank body (1); a circulating spray mechanism (2), the circulating spray mechanism is arranged on one side of the tank body (1), and one end of the circulating spray mechanism is configured as a spray end, and the other end is configured as a liquid return end, the spray end and the liquid return end are located in the tank body cavity (11), wherein, The spray end is located at the upper part of the tank cavity (11), and the liquid return end is located at the lower part of the tank cavity (11); a separation mechanism (3), which is arranged in the tank cavity (11), characterized in that: the separation mechanism (3) includes a tubular solid-liquid separation device (31) and a plate-type gas-liquid separation device (32), the tubular solid-liquid separation device (31) is arranged in the tank cavity (11) at a position corresponding to the lower part of the dust-laden air inlet pipe interface (12), and the plate-type gas-liquid separation device (32) is arranged in the tank cavity (11) at a position corresponding to the lower direction of the tank upper head (13).

2. The dust-containing waste gas spray dust removal device according to claim 1 is characterized in that: The position of the tubular solid-liquid separation device (31) in the tank cavity (11) is on the lower left side of the tank cavity (11) and corresponds to the upper left side of the mud collecting bucket (14); the position of the plate-type gas-liquid separation device (32) in the tank cavity (11) is arranged at the upper part of the tank cavity (11) and corresponds to the upper right side of the mud collecting bucket (14); and the plate-type gas-liquid separation device (32) and the tubular solid-liquid separation device (31) form a positional relationship in which they are arranged correspondingly from top to bottom.

3. The dust-containing waste gas spray dust removal device according to claim 2 is characterized in that: The tubular solid-liquid separation device (31) comprises a solid-liquid separation sewage pipe frame support beam longitudinal plate (311), a group of solid-liquid separation sewage pipe frame support beams (312) and a group of solid-liquid separation sewage pipes (313). The rear side of the solid-liquid separation sewage pipe frame support beam longitudinal plate (311) in the height direction is fixed to the cavity wall of the tank cavity (11), and the group of solid-liquid separation sewage pipe frame support beams (312) are fixed to the cavity wall of the tank cavity (11) and the solid-liquid separation sewage pipe frame support beams in a longitudinal and transverse spacing state. Between the opposite sides of the support beam longitudinal plate (311), a group of solid-liquid separation drain pipes (313) are distributed in a matrix manner and each solid-liquid separation drain pipe (313) is fixed to the group of solid-liquid separation drain pipe frame support beams (312) in a state where the upper end is inclined to the left and the lower end is inclined to the right. The number of the solid-liquid separation drain pipes (313) is a plurality of rows distributed from left to right and each row has a plurality of drain pipes that increase successively from the cavity wall of the tank cavity (11) to the solid-liquid separation drain pipe frame support beam longitudinal plate (311); the circulating spray The spray end of the shower mechanism (2) corresponds to the top of the group of solid-liquid separation drip pipes (313); the plate-type gas-liquid separation device (32) includes a gas-liquid separation plate frame fixing plate (321), a gas-liquid separation plate frame (322) and a group or a plurality of gas-liquid separation plates (323), the rear side of the gas-liquid separation plate frame fixing plate (321) in the height direction is fixed to the cavity wall of the tank cavity (11), and corresponds to the top of the solid-liquid separation drip pipe frame support beam longitudinal plate (311) in a longitudinal state, and the gas The number of liquid separation plate frames (322) is equal to the number of groups of gas-liquid separation plates (323), and they are fixed between the cavity wall of the tank cavity (11) and the opposite side of the gas-liquid separation plate frame fixing plate (321). Each group of gas-liquid separation plates (323) has a plurality of plates spaced apart from each other and are fixed to the gas-liquid separation plate frame (322) in a state in which the upper part is tilted to the right and the lower part is tilted to the left. The liquid return end of the circulating spray mechanism (2) corresponds to the bottom of the gas-liquid separation plate (323).

4. The dust-containing waste gas spray dust removal device according to claim 3 is characterized in that: The lumen of each solid-liquid separation drain pipe of the group of solid-liquid separation drain pipes (313) passes through from the upper part to the lower part, and the cross-sectional shape of the solid-liquid separation pipe is a regular hexagon.

5. The dust-containing waste gas spray dust removal device according to claim 3 is characterized in that: The upper end of the group of solid-liquid separation drain pipes (313) tilts to the left while the lower end tilts to the right at an angle α of 45-60°; the upper part of the gas-liquid separation plate (323) tilts to the right while the lower part tilts to the left at an angle β of 45-60°.

6. The dust-containing waste gas spray dust removal device according to claim 3 is characterized in that: The circulating spray mechanism (2) comprises a circulating pump (21), a circulating pump water inlet pipe (22), a circulating pump water inlet pipe liquid inlet nozzle (23), a circulating pump water outlet pipe (24) and a circulating pump water outlet pipe spray head (25). The circulating pump (21) is arranged along with one side of the tank body (1) and is supported on the floor or supported on a bracket arranged on the floor when in use. One end of the circulating pump water inlet pipe (22) facing the circulating pump (21) is connected to the circulating pump water inlet (211) of the circulating pump (21), and one end of the circulating pump water inlet pipe (22) facing the tank body (1) extends into the tank body cavity (11) and is located on the right side of the longitudinal plate (311) of the solid-liquid separation drainage pipe frame support beam, and the upper end is constituted as the liquid return end. The circulating pump water inlet pipe liquid inlet nozzle (23) is fixed to the liquid return end, the liquid inlet of the circulating pump water inlet pipe liquid inlet nozzle (23) faces upward, the circulating pump water outlet pipe (24) faces one end of the circulating pump (21) and is connected to the circulating pump water outlet (212), and the circulating pump water outlet pipe (24) faces one end of the tank body (1) and extends into the tank body cavity (11) and is located on the left side of the gas-liquid separation plate frame fixing plate (321) and is folded downward to form the liquid return end, the circulating pump water outlet pipe spray head (25) is fixed to the liquid return end, the spray hole of the circulating pump water outlet pipe spray head (25) faces downward, wherein the circulating pump water outlet pipe spray head (25) and the circulating pump water inlet pipe liquid inlet nozzle (23) form a diagonal position relationship with each other.

7. The dust-containing waste gas spray dust removal device according to claim 6 is characterized in that: The upper edge of the circulating pump water inlet pipe liquid inlet nozzle (23) and the surrounding of the circulating pump water inlet pipe liquid inlet nozzle (23) are formed into a sawtooth shape; a circulating pump water inlet pipe opening and closing valve (221) is arranged on the pipeline of the circulating pump water inlet pipe (22) and at a position on the left side of the circulating pump water inlet (211), and a one-way valve (241) and a flow meter (242) are arranged in sequence from left to right on the pipeline of the circulating pump water outlet pipe (24) and at a position on the right side of the circulating pump water outlet (212).

8. The dust-containing waste gas spray dust removal device according to claim 1 is characterized in that: A dust-containing air introduction pipe limiting sleeve (15) is formed on the tank body (1) and at a position around the dust-containing air introduction pipe interface (12), and the space between the inner wall of the dust-containing air introduction pipe limiting sleeve (15) and the outer wall of the dust-containing air introduction pipe interface (12) constitutes a dust-containing air introduction pipe insertion cavity (16); a sight glass (133) is arranged on the tank body upper cover (13) of the tank body (1); a tank cavity liquid level detector (132) is arranged on the tank body upper cover (13), and the tank cavity liquid level detector (132) has an upper liquid level probe (1321) extending into the tank cavity (11), a lower liquid level probe (1322) and a common terminal (1323).

9. The dust-containing waste gas spray dust removal device according to claim 3 is characterized in that: The mud collecting hopper (14) comprises a left mud collecting hopper (141) and a right mud collecting hopper (142); the group of solid-liquid separation drainage pipes (313) of the tubular solid-liquid separation device (31) corresponds to the top of the left mud collecting hopper (141); the plate-type gas-liquid separation device (32) corresponds to the top of the right mud collecting hopper (142); a left mud collecting hopper mud outlet (1411) extends from the bottom of the left mud collecting hopper (141); and a right mud collecting hopper mud outlet (1421) extends from the bottom of the right mud collecting hopper (142); a mud discharge mechanism (4) is connected at a position corresponding to the left mud collecting hopper mud outlet (1411) and the right mud collecting hopper mud outlet (1421).

10. The dust-containing waste gas spray dust removal device according to claim 9, characterized in that: The left mud collecting bucket (141) and the right mud collecting bucket (142) are each supported on the ground or supported on a bracket arranged on the ground through mud collecting bucket support legs extending below them; the sludge discharge mechanism (4) comprises an auger shaft drive motor (41), an auger shaft drive reduction box (42), an auger barrel (43), a spiral blade shaft (44), a spiral blade (45) and a sludge discharge port (46); the auger shaft drive motor (41) is transmission-connected to the auger shaft drive reduction box (42) and the auger shaft drive reduction box (42) together with the auger shaft drive motor (41) is arranged on a reduction box seat (421); the left end of the spiral blade shaft (44) is rotatably supported on a spiral blade shaft left support seat (421) located at the left end of the auger barrel (43); 41), and the right end of the spiral sheet shaft (44) extends to the outside of the right end of the auger barrel (43) through the auger barrel cavity (431) of the auger barrel (43) and is transmission-connected to the auger shaft drive shaft reducer final power output shaft (422) of the auger shaft drive reducer (42) through a coupling (442), the left mud collecting bucket mud outlet (1411) and the right mud collecting bucket mud outlet (1421) are fixedly connected to the auger barrel (43) and communicated with the auger barrel cavity (431) of the auger barrel (43), the spiral sheet (45) is directly formed on the spiral sheet shaft (44) in the auger barrel cavity (431), and the sludge discharge outlet (46) is located on the left end of the auger barrel (43) facing downward and communicated with the auger barrel cavity (431).

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