Furnace gas recovery device for soda ash production calcining furnace

Abstract

The utility model relates to the technical field of soda ash production calcining furnace gas recovery, and discloses a soda ash production calcining furnace gas recovery device which comprises a mounting seat, a dust removal tank body, a desalting water tank, a gas outlet pipeline and gas purification equipment, air inlet adjusting mechanisms are arranged outside and inside the dust removal tank body, and adjusting dust scraping mechanisms are arranged on the top and inside the dust removal tank body. By arranging an air inlet adjusting mechanism, a limiting column can slide in the direction of a guide groove, so that a sliding block slides in a limiting sliding groove in a guide frame, six sets of adjusting plates are centered or move outwards, and therefore the inner caliber is changed, and the air inlet amount is adjusted; dust attached to the inner wall of the dust removal tank body can be scraped, the inner wall of the dust removal tank body can be scraped in a reciprocating mode by controlling forward and reverse rotation of the first motor, and the furnace gas treatment and recovery effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace gas recovery of a calcining furnace in the production of soda ash, in particular to a furnace gas recovery device for a calcining furnace in the production of soda ash. Background Art

[0002] At present, when soda ash production enterprises prepare desalted water in their own thermal power plant water treatment workshop, they generally use steam generated by hot boilers to heat the ion desalination device. The furnace gas generated by the calcining furnace has a certain temperature. Therefore, in order to save energy, a soda ash production calcining furnace gas recovery device is often used.

[0003] According to the description of a gas recovery device for a soda ash production calcining furnace disclosed on the patent website (authorization announcement number: CN217032078U), "The utility model discloses a gas recovery device for a soda ash production calcining furnace, belonging to the technical field of gas recovery equipment for a soda ash production calcining furnace, comprising a desalted water tank and a dust removal tank, a gas outlet is provided on the top of the desalted water tank, a water inlet pipe is provided on the left part of the desalted water tank, a rotary film chamber is provided in the desalted water tank, perforations are provided on the rotary film tube, a baffle is provided in the rotary film tube, a vent pipe is provided on the baffle, and a rotary film chamber is provided in the desalted water tank. There is an exhaust pipe at the bottom of the membrane chamber, an air jet hole is arranged at the top of the exhaust pipe, a drainage pipe is arranged at the right part of the water storage bin, a clean gas bin is arranged in the dust removal tank, a pulse pipe runs through the left part of the clean gas bin, a pulse assembly is arranged at the right part of the pulse pipe, a compressed air pipe is arranged at the bottom of the pulse assembly, an air compressor is arranged at the bottom of the compressed air pipe, a dust removal pipe is arranged at the bottom of the clean gas bin, a bucket is arranged in the dust storage bin, a dust exhaust pipe is arranged at the bottom of the bucket, and an air intake pipe is arranged at the right part of the dust removal tank. It solves the problem of alkaline dust and insufficient heat exchange in the furnace gas recovery device, and is mainly used for furnace gas recovery.

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model can remove the alkaline dust in the combustion furnace gas by pulse dust removal of the alkali dust in the cloth bag through the pulse component set to obtain clean high-temperature gas, and use the rotary film tube in the rotary film chamber to form a vortex when the desalted water enters the rotary film tube through the perforations, so that the water flows from the bottom of the rotary film tube to form a skirt film, which rolls the rising exhaust gas. However, in actual application, when the device pulses the cloth bag, the dust inside the cloth bag will float away at will. In addition to falling into the dust storage equipment, some of the dust will float to the inner wall of the dust removal tank. If it is not cleaned up in time, it will interfere with the subsequent furnace gas recovery work, and the efficiency of the air purification equipment and the dust removal equipment in treating the furnace gas is limited. The device directly passes the furnace gas into the interior of the dust removal tank, which is prone to the problem that some of the furnace gas is directly transmitted to the desalted water tank without being treated, resulting in a poor recovery effect. Therefore, we urgently need to improve a furnace gas recovery device for a soda ash production calcining furnace to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a gas recovery device for a calcining furnace in the production of soda ash, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas recovery device for a soda ash production calcining furnace, comprising a mounting seat, a dust removal tank body, a desalted water tank, an air outlet pipe, and an air purification device. A dust storage device and a dust removal device are arranged inside the dust removal tank body, an air intake regulating mechanism is arranged outside and inside the dust removal tank body, and an regulating dust scraping mechanism is arranged on the top and inside of the dust removal tank body.

[0008] The air intake regulating mechanism comprises a regulating component and a control component, and the regulating component is arranged outside the control component.

[0009] Preferably, the adjustment assembly includes a mounting bracket, the mounting bracket is fixedly mounted on the outside of the dust removal tank body, an air intake pipe is fixedly mounted on the right side of the mounting bracket, a connecting plate is fixedly mounted inside the air intake pipe, a connecting bracket is fixedly mounted on the outside of the connecting plate, a guide frame is fixedly mounted on the connecting bracket on a side away from the connecting plate, a slider is slidably mounted inside the guide frame, an adjustment plate is fixedly mounted on the side of the slider away from the guide frame, a limit plate is rotatably mounted on the side of the connecting plate away from the mounting bracket, and a limit column is fixedly mounted on the side of the adjustment plate close to the limit plate, so as to facilitate dynamic adjustment of the caliber according to actual processing conditions to improve the recovery and processing of furnace gas.

[0010] Preferably, a limiting groove is provided inside the guide frame at a position corresponding to the slider, and a guide groove is provided at a position corresponding to the limiting plate and the limiting column. The slider, the adjustment plate, and the limiting column are each provided in six groups, and the six groups of the slider, the adjustment plate, and the limiting column are symmetrically distributed inside the guide frame, so as to facilitate the synchronous centering or outward movement of the six groups of adjustment plates to realize dynamic adjustment of the caliber, thereby enhancing the practicality of the device.

[0011] Preferably, the control component includes a circular rack, which is fixedly mounted on the outside of the limit plate, a motor seat 1 is fixedly mounted on the outside of the mounting frame, a driving motor is fixedly mounted inside the motor seat 1, a gear is fixedly mounted on the output shaft of the driving motor, a first mounting plate is fixedly mounted on the outside of the mounting frame, a sliding rod is slidably mounted inside the first mounting plate, a tooth block is fixedly mounted on the side of the sliding rod close to the circular rack, and a first spring is sleeved on the outside of the sliding rod to facilitate driving the circular rack to rotate so that the set limit plate rotates synchronously.

[0012] Preferably, the gear is meshed with the circular rack, the tooth block is plug-connected with the circular rack, the first spring is fixedly installed on the first mounting plate close to the first mounting plate, and the first spring is fixedly installed on the outside of the slide rod away from the first mounting plate, so as to lock the position of the circular rack.

[0013] Preferably, the adjustable scraping mechanism includes a second mounting plate, the second mounting plate is fixedly mounted inside the dust removal tank body, a motor seat 2 is fixedly mounted on the top of the dust removal tank body, a first motor is fixedly mounted inside the motor seat 2, a screw is fixedly mounted on the output shaft of the first motor, a movable frame is threadedly mounted on the outer surface of the screw, and a scraper is fixedly mounted on the outer surface of the movable frame to facilitate scraping off dust attached to the inner wall of the dust removal tank body.

[0014] Preferably, a limiting rod is fixedly installed on the top of the second mounting plate, and through holes are opened at corresponding positions of the movable frame and the limiting rod. The scraper abuts against the inner wall of the dust removal tank to facilitate better scraping effect and avoid interference with subsequent furnace gas treatment recovery effect.

[0015] Compared with the prior art, the utility model provides a gas recovery device for a calcining furnace in the production of soda ash, which has the following beneficial effects:

[0016] 1. The gas recovery device of the soda ash production calcining furnace is provided with an air intake adjustment mechanism, and the slide bar is pulled outward to disengage the tooth block and the circular rack from a locked state, and then the drive motor is turned on to rotate the gear to rotate the circular rack meshing therewith, so as to rotate the limit plate, and the limit column can slide along the guide groove direction to slide the slider inside the limit slide groove inside the guide frame, and the six groups of adjustment plates are centered or moved outward to change the internal caliber, so as to adjust the air intake amount. After the adjustment is completed, the drive motor is turned off, the slide bar is released, and the tooth block and the circular rack can be restored to a plug-in state under the resetting action of the first spring, so as to lock the position of the circular rack.

[0017] 2. The gas recovery device of the soda ash production calcining furnace is provided with an adjustable dust scraping mechanism. During use, after the dust removal equipment pulses the dust down, the dust will enter the dust storage device. However, since some of the dust will be shaken off onto the inner wall of the dust removal tank, the first motor can be turned on to drive the screw to rotate. Under the action of the limit rod, the movable frame can slide outside the screw. Under the action of the scraper, the dust attached to the inner wall of the dust removal tank can be scraped off. By controlling the forward and reverse rotation of the first motor, the inner wall of the dust removal tank can be scraped back and forth, thereby improving the gas treatment and recovery effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the dust removal tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the appearance structure of the air intake adjustment mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the adjustment component of the utility model;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the control assembly of the utility model;

[0024] Figure 6 This is a schematic diagram of the disassembled structure of the adjustable dust scraping mechanism of the utility model.

[0025] In the figure: 1. mounting base; 2. dust removal tank body; 3. air intake adjustment mechanism; 31. adjustment component; 311. mounting frame; 312. air intake duct; 313. connecting plate; 314. connecting frame; 315. guide frame; 316. slider; 317. adjustment plate; 318. limit plate; 319. limit column; 32. control component; 321. circular rack; 322. motor seat 1; 323. drive motor; 324. gear; 325. first mounting plate; 326. slide bar; 327. gear block; 328. first spring; 4. dust scraping mechanism; 41. second mounting plate; 42. motor seat 2; 43. first motor; 44. screw; 45. movable frame; 46. scraper; 5. desalted water tank; 6. air outlet duct; 7. air purification equipment; 8. dust storage equipment; 9. dust removal equipment. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 1-5 The utility model provides a technical solution: a gas recovery device for a soda ash production calcining furnace, comprising a mounting seat 1, a dust removal tank body 2, a desalted water tank 5, an air outlet pipe 6, and a gas purification device 7. A dust storage device 8 and a dust removal device 9 are arranged inside the dust removal tank body 2, an air intake regulating mechanism 3 is arranged outside and inside the dust removal tank body 2, and an regulating dust scraping mechanism 4 is arranged on the top and inside of the dust removal tank body 2.

[0030] The air intake regulating mechanism 3 includes a regulating component 31 and a control component 32 , and the regulating component 31 is arranged outside the control component 32 .

[0031] Furthermore, the adjustment component 31 includes a mounting frame 311, which is fixedly installed on the outside of the dust removal tank body 2, an air intake duct 312 is fixedly installed on the right side of the mounting frame 311, a connecting plate 313 is fixedly installed inside the air intake duct 312, a connecting frame 314 is fixedly installed outside the connecting plate 313, a guide frame 315 is fixedly installed on the side of the connecting frame 314 away from the connecting plate 313, a slider 316 is slidably installed inside the guide frame 315, an adjustment plate 317 is fixedly installed on the side of the slider 316 away from the guide frame 315, a limit plate 318 is rotatably installed on the side of the connecting plate 313 away from the mounting frame 311, and a limit column 319 is fixedly installed on the side of the adjustment plate 317 close to the limit plate 318, so as to facilitate dynamic adjustment of the caliber according to actual processing conditions to improve the recovery and processing of the furnace gas.

[0032] Furthermore, a limiting groove is provided inside the guide frame 315 at a position corresponding to the slider 316, a guide groove is provided at a position corresponding to the limiting plate 318 and the limiting column 319, and six groups of sliders 316, adjustment plates 317, and limiting columns 319 are provided, and the six groups of sliders 316, adjustment plates 317, and limiting columns 319 are symmetrically distributed inside the guide frame 315, so as to facilitate the synchronous centering or outward movement of the six groups of adjustment plates 317 to realize dynamic adjustment of the caliber, so as to enhance the practicality of the device.

[0033] Furthermore, the control component 32 includes a circular rack 321, which is fixedly mounted on the outside of the limit plate 318, a motor seat 322 is fixedly mounted on the outside of the mounting frame 311, a driving motor 323 is fixedly mounted inside the motor seat 322, a gear 324 is fixedly mounted on the output shaft of the driving motor 323, a first mounting plate 325 is fixedly mounted on the outside of the mounting frame 311, a slide rod 326 is slidably mounted inside the first mounting plate 325, a tooth block 327 is fixedly mounted on the side of the slide rod 326 close to the circular rack 321, and a first spring 328 is sleeved on the outside of the slide rod 326 to facilitate driving the circular rack 321 to rotate so that the set limit plate 318 rotates synchronously.

[0034] Furthermore, the gear 324 is meshed with the circular rack 321, the tooth block 327 is plugged into the circular rack 321, the first spring 328 is fixedly installed on the first mounting plate 325 near the side of the first mounting plate 325, and the first spring 328 is fixedly installed on the outside of the slide rod 326 away from the side of the first mounting plate 325, so as to lock the position of the circular rack 321.

[0035] Embodiment 2:

[0036] See also Figure 6 , and combined with Example 1, it is further obtained that the dust scraping mechanism 4 includes a second mounting plate 41, the second mounting plate 41 is fixedly installed inside the dust removal tank body 2, a motor seat 2 is fixedly installed on the top of the dust removal tank body 2, a first motor 43 is fixedly installed inside the motor seat 2, a screw 44 is fixedly installed on the output shaft of the first motor 43, a movable frame 45 is threadedly installed on the outside of the screw 44, and a scraper 46 is fixedly installed on the outside of the movable frame 45, so as to facilitate scraping off the dust attached to the inner wall of the dust removal tank body 2.

[0037] Furthermore, a limit rod is fixedly installed on the top of the second mounting plate 41, and through holes are opened at positions corresponding to the movable frame 45 and the limit rod. The scraper 46 abuts against the inner wall of the dust removal tank body 2 to facilitate better scraping effect and avoid interference with subsequent furnace gas treatment and recovery effect.

[0038] In actual operation, when this device is used, in order to avoid the dust storage device 8 and the dust removal device 9 processing more dust in the furnace gas at the same time, and the dust is transmitted to the desalted water tank 5 through the purification device 7 without being completely processed, resulting in a problem of poor recovery effect, the air intake volume can be dynamically adjusted, and the slide bar 326 is pulled outward to disengage the tooth block 327 from the circular rack 321. The drive motor 323 is then turned on to rotate the gear 324 to rotate the circular rack 321 meshing therewith, so that the set limit plate 318 rotates, and under the action of the guide groove inside it, the limit column 319 can slide along the direction of the guide groove, so that the set slider 316 slides inside the limit slide groove inside the guide frame 315, so that the set six groups of adjustment plates 317 are centered or moved outward, thereby changing the internal caliber to achieve the adjustment of the air intake volume. After the adjustment is completed, the motor 323 is turned on. The driving motor 323 is closed and the sliding rod 326 is released. Under the resetting action of the first spring 328, the tooth block 327 and the circular rack 321 can be restored to the plug-in state, thereby locking the position of the circular rack 321 to avoid the phenomenon of arbitrary changes in the caliber during use. As the processing work continues, when the dust removal device 9 pulses down the dust, the dust will enter the dust storage device 8, but since some dust will fall onto the inner wall of the dust removal tank body 2, the first motor 43 can be turned on at this time to drive the screw 44 to rotate. Under the action of the limit rod, the movable frame 45 can be made to slide outside the screw 44. Under the action of the scraper 46, the dust attached to the inner wall of the dust removal tank body 2 can be scraped off. By controlling the forward and reverse rotation of the first motor 43, the inner wall of the dust removal tank body 2 can be scraped back and forth, thereby improving the furnace gas treatment and recovery effect.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A gas recovery device for a calcining furnace in the production of soda ash, comprising a mounting base (1), a dust removal tank body (2), a desalted water tank (5), an air outlet pipe (6), and a gas purification device (7), characterized in that: The dust removal tank body (2) is provided with a dust storage device (8) and a dust removal device (9) inside, the dust removal tank body (2) is provided with an air intake adjustment mechanism (3) outside and inside, and the dust removal tank body (2) is provided with an adjustment dust scraping mechanism (4) on the top and inside; The air intake regulating mechanism (3) comprises a regulating component (31) and a control component (32), wherein the regulating component (31) is arranged outside the control component (32).

2. The gas recovery device for a calcining furnace for producing soda ash according to claim 1, characterized in that: The adjustment assembly (31) comprises a mounting frame (311), wherein the mounting frame (311) is fixedly mounted on the outside of the dust removal tank body (2), an air intake duct (312) is fixedly mounted on the right side of the mounting frame (311), a connecting plate (313) is fixedly mounted inside the air intake duct (312), a connecting frame (314) is fixedly mounted outside the connecting plate (313), a guide frame (315) is fixedly mounted on the side of the connecting frame (314) away from the connecting plate (313), a slider (316) is slidably mounted inside the guide frame (315), an adjustment plate (317) is fixedly mounted on the side of the slider (316) away from the guide frame (315), a limiting plate (318) is rotatably mounted on the side of the connecting plate (313) away from the mounting frame (311), and a limiting column (319) is fixedly mounted on the side of the adjustment plate (317) close to the limiting plate (318).

3. A gas recovery device for a calcining furnace for producing soda ash according to claim 2, characterized in that: A limiting sliding groove is provided inside the guide frame (315) at a position corresponding to the slider (316); a guide groove is provided at a position corresponding to the limiting plate (318) and the limiting column (319); six groups of the slider (316), the adjusting plate (317), and the limiting column (319) are provided, and the six groups of the slider (316), the adjusting plate (317), and the limiting column (319) are symmetrically distributed inside the guide frame (315).

4. A gas recovery device for a calcining furnace for producing soda ash according to claim 2, characterized in that: The control component (32) comprises a circular rack (321), wherein the circular rack (321) is fixedly mounted on the outside of the limiting plate (318); a motor seat (322) is fixedly mounted on the outside of the mounting frame (311); a driving motor (323) is fixedly mounted on the inside of the motor seat (322); a gear (324) is fixedly mounted on the output shaft of the driving motor (323); a first mounting plate (325) is fixedly mounted on the outside of the mounting frame (311); a sliding rod (326) is slidably mounted on the inside of the first mounting plate (325); a tooth block (327) is fixedly mounted on the side of the sliding rod (326) close to the circular rack (321); and a first spring (328) is sleeved and mounted on the outside of the sliding rod (326).

5. A gas recovery device for a calcining furnace for producing soda ash according to claim 4, characterized in that: The gear (324) is meshed with the circular rack (321), the tooth block (327) is plug-connected with the circular rack (321), the first spring (328) is fixedly mounted on the first mounting plate (325) on the side close to the first mounting plate (325), and the first spring (328) is fixedly mounted on the outside of the slide rod (326) on the side away from the first mounting plate (325).

6. The gas recovery device for a calcining furnace for producing soda ash according to claim 1, characterized in that: The adjustable dust scraping mechanism (4) comprises a second mounting plate (41), the second mounting plate (41) being fixedly mounted inside the dust removal tank body (2), a second motor seat (42) being fixedly mounted on the top of the dust removal tank body (2), a first motor (43) being fixedly mounted inside the second motor seat (42), a screw rod (44) being fixedly mounted on the output shaft of the first motor (43), a movable frame (45) being threadedly mounted on the outside of the screw rod (44), and a scraper (46) being fixedly mounted on the outside of the movable frame (45).

7. A gas recovery device for a calcining furnace for producing soda ash according to claim 6, characterized in that: A limiting rod is fixedly mounted on the top of the second mounting plate (41); through holes are provided at positions corresponding to the limiting rod and the movable frame (45); and the scraper (46) abuts against the inner wall of the dust removal tank body (2).

Images