Fluid heating device for steam latent heat recovery of condensation tank

Abstract

The invention relates to the technical field of condensation equipment, in particular to a fluid heating device for steam latent heat recovery of a condensation tank. According to the technical scheme, the condensation processing device comprises a condensation processing tank, the top of the condensation processing tank is provided with a tank door assembly, the bottom of the condensation processing tank is provided with a linkage up-down transmission assembly, and the condensation processing tank is internally provided with a built-in stirring assembly; and a steam inner wall cleaning assembly is slidably mounted in the condensation processing tank through a linkage up-down transmission assembly. The cleaning assembly is prevented from being damaged due to the fact that the first side edge cleaning block and the second side edge cleaning block are excessively attached to the heating wall for a long time, and scale stains compressed and stored by the first side edge cleaning block and the second side edge cleaning block are shaken off to the bottom of the auxiliary positioning frame through swinging of the first side edge cleaning block and the second side edge cleaning block. And the reaction kettle is suitable for heating and condensation reaction of raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of condensation equipment, and in particular to a fluid heating device for recovering latent heat of steam from a condensation tank. Background Art

[0002] In chemical production and other processes involving condensation reactions, the condensation tank usually requires a lot of heat to maintain the reaction temperature. The fluid heating device for steam latent heat recovery can capture the large amount of latent heat released by steam during the condensation process and transfer it to the fluid that needs to be heated (such as reaction materials, heat transfer media, etc.). Compared with the traditional direct steam heating method, it can greatly improve energy utilization, reduce steam consumption, and reduce production costs.

[0003] During the use of the condensation tank, impurities in the water (such as calcium and magnesium ions) are easily precipitated and attached to the heat exchange surface during the condensation of steam, forming scale. As time goes by, the scale layer continues to thicken, which will reduce the heat exchange efficiency and hinder heat transfer. Especially for some areas with hard water, after a few months of use, the inner wall of the heat exchange tube of the heating device will have obvious scale accumulation, which needs to be repaired.

[0004] In the Chinese utility model patent document with the publication number CN220919198U, a condensation tank for preparing cephalosporins is disclosed, which solves the current problem of insufficient stirring of raw materials. The condensation tank comprises a tank body, a feed pipe is fixedly installed on the tank body, a discharge pipe is fixedly installed on the bottom of the tank body, and a stirring mechanism is installed inside the tank body. Through the cooperation between the motor and the transmission shaft and the rotating disk and the movable rod, the T-plate drives the slider to move along the slide rod, and through the cooperation between the driving rod and the lifting plate and the movable ring, the movable cylinder drives the stirring rod 1 to move up and down, thereby facilitating the change of the position of the stirring rod 1 to fully stir the raw materials.

[0005] When the above device is in use, it utilizes the cooperation between the driving rod, the lifting plate and the movable ring to enable the movable cylinder to drive the stirring rod to move up and down, thereby improving the stirring effect of the material, causing the material to be fully heated to generate more water vapor circulation, and then more scale will accumulate on the inner wall of the heat exchange tube of the heating device, which is usually located in various areas of the inner wall of the heat exchange tube, affecting the use of the equipment.

[0006] Therefore, the present application proposes a fluid heating device for recovering latent heat of condensation tank steam. Summary of the invention

[0007] The purpose of the present invention is to improve the stirring effect of materials and generate more scale in the background technology, and to propose a fluid heating device for recovering the latent heat of condensation tank steam.

[0008] The technical solution of the present invention is: a fluid heating device for recovering latent heat of steam from a condensation tank, comprising a condensation processing tank, a tank door assembly is arranged on the top of the condensation processing tank, a linkage upper and lower transmission assembly is installed on the bottom of the condensation processing tank, a built-in stirring assembly is installed inside the condensation processing tank, and a steam inner wall cleaning assembly is slidably installed inside the condensation processing tank through the linkage upper and lower transmission assembly; The condensation processing tank comprises an auxiliary positioning frame, a heat transfer frame is fixedly installed on the top of the auxiliary positioning frame, a processing cavity is opened inside the heat transfer frame, a steam transfer frame is fixedly installed on the outside of the heat transfer frame, and a product conduction pipe is fixedly installed on the bottom of the auxiliary positioning frame, and the product conduction pipe is arranged in a connected state with the processing cavity; The linked upper and lower transmission assembly includes two built-in collar frames slidably mounted inside the steam transfer frame and the auxiliary positioning frame; The steam inner wall cleaning assembly includes a plurality of guide balls fixedly mounted on the outside of a built-in collar frame, a plurality of positioning movable rotating blocks are hingedly mounted on the outside of the built-in collar frame through the plurality of guide balls, a second side cleaning block is fixedly mounted on one side of the positioning movable rotating block, a first side cleaning block is fixedly mounted on the other side of the positioning movable rotating block, and a telescopic arc rod is fixedly mounted between every two of the positioning movable rotating blocks.

[0009] Optionally, the tank door assembly includes a sealed tank door hinged on the outside of the processing chamber, a telescopic conduction tube is fixedly installed on the top of the sealed tank door, and a side of the telescopic conduction tube away from the sealed tank door is fixedly installed on the steam transfer rack.

[0010] Optionally, a pressure detection component is fixedly installed on the top of the sealed tank door, and a temperature monitoring component is fixedly installed on the top of the sealed tank door.

[0011] Optionally, the linked upper and lower transmission assembly includes a hollow guide frame at the bottom of the auxiliary positioning frame, a first eccentric gear is installed on the outer side of the hollow guide frame for rotation by a second motor, a second eccentric gear is meshingly connected to the outer side of the first eccentric gear, and a double circular fixing block is rotatably installed on the outer side of the second eccentric gear and the first eccentric gear.

[0012] Optionally, a built-in ring frame is rotatably installed on the outer side of the second eccentric gear, a two-way guide plate is fixedly installed on the outer side of the built-in ring frame, the two-way guide plate is slidably installed on the outer side of the hollow guide frame, and the built-in ring frame is fixedly installed on one side of the two-way guide plate.

[0013] Optionally, the built-in stirring assembly includes a fixed connecting plate fixedly mounted on the inner wall of the processing chamber, a hollow connecting rod is rotatably mounted inside the fixed connecting plate, and a positioning auxiliary rotating rod is slidably mounted inside the hollow connecting rod through a slide groove.

[0014] Optionally, a slide frame is slidably installed on the outer side of the positioning auxiliary rotating rod, and the slide frame is fixedly installed on the inner wall of the processing chamber. A first motor is fixedly installed on one end of the positioning auxiliary rotating rod located inside the slide frame, and the first motor is fixedly installed on the top of the built-in ring frame, and the first motor is slidably installed inside the slide frame.

[0015] Optionally, a two-way connecting block is fixedly installed on the outer side of the positioning auxiliary rotating rod, two groups of stirring blades are fixedly installed on both sides of the two-way connecting block, the positioning auxiliary rotating rod is hinged with a hollow guide tube below the stirring blades, a stirring and cleaning rod is slidably installed inside the hollow guide tube, and the stirring and cleaning rod is attached to the inner wall of the processing chamber.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the first side cleaning block and the second side cleaning block drive the positioning movable rotating block to deflect along the guide ball due to the difference in friction generated by the dirt on the inner wall of the steam transfer frame, the first side cleaning block and the second side cleaning block are in a compressed state, thereby improving the ability to remove dirt. When there is no friction generated by the dirt, the first side cleaning block and the second side cleaning block return to their original positions, thereby preventing the first side cleaning block and the second side cleaning block from being too tightly attached to the heating wall for a long time, thereby causing damage to the cleaning assembly. In addition, through the swinging of the first side cleaning block and the second side cleaning block, the scale stains compressed and stored in the first side cleaning block and the second side cleaning block are shaken off to the bottom of the auxiliary positioning frame, thereby being easily cleaned later. 2. As the heating reaction takes place inside the processing chamber, the water vapor in the processing chamber is transferred to the steam transfer rack through the telescopic conduction pipe, so that the steam transfer rack stores the heat of the water vapor and transfers the heat to the processing chamber to supplement the heat, thereby reducing the processing cost; 3. The hollow guide tube deflects along the positioning auxiliary rotating rod, and the stirring and cleaning rod slides into the hollow guide tube under the pressure of the inner wall of the processing chamber. At this time, the stirring blade can continue to move downward to avoid gaps in the processing chamber that are not scraped by the stirring blade and the stirring and cleaning rod, so that the residue of the material can be cleaned up, preventing a large amount of residual material from being stored in the equipment and affecting its later use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a condensation tank of the present invention is provided; Figure 2 It is a structural schematic diagram of the hollow guide frame of the present invention; Figure 3 It is a structural schematic diagram of the linked upper and lower transmission components of the present invention; Figure 4This is a schematic diagram of the structure of the built-in stirring assembly of the present invention; Figure 5 for Figure 4 Enlarged view of the middle A area; Figure 6 for Figure 4 Enlarged view of the middle B area; Figure 7 It is a structural schematic diagram of the steam inner wall cleaning component of the present invention; Figure 8 for Figure 7 Enlarged view of the middle C area; Fig. 9 It is a schematic structural diagram of the guide ball of the present invention.

[0018] Figure numerals: 1, condensation processing tank; 101, steam transfer rack; 102, processing chamber; 103, auxiliary positioning rack; 104, product transfer pipe; 105, heat transfer rack; 2, tank door assembly; 201, sealed tank door; 202, telescopic transfer pipe; 203, pressure detection assembly; 204, temperature monitoring assembly; 3, linkage upper and lower transmission assembly; 301, hollow guide frame; 302, double circular fixing block; 303, first eccentric gear; 304, second eccentric gear; 305, double guide Toward plate; 306, built-in ring frame; 4, built-in stirring assembly; 401, fixed connecting plate; 402, hollow connecting rod; 403, positioning auxiliary rotating rod; 404, stirring blade; 405, two-way connecting block; 406, stirring cleaning rod; 407, slide frame; 408, hollow guide tube; 409, first motor; 5, steam inner wall cleaning assembly; 501, positioning movable rotating block; 502, first side cleaning block; 503, second side cleaning block; 504, telescopic arc rod; 505, guide ball. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, the present invention proposes a fluid heating device for recovering latent heat of condensation tank steam, comprising a condensation processing tank 1, a tank door assembly 2 is arranged on the top of the condensation processing tank 1, a linked upper and lower transmission assembly 3 is installed on the bottom of the condensation processing tank 1, a built-in stirring assembly 4 is installed inside the condensation processing tank 1, and a steam inner wall cleaning assembly 5 is slidably installed inside the condensation processing tank 1 through the linked upper and lower transmission assembly 3.

[0021] The condensation processing tank 1 includes an auxiliary positioning frame 103, a heat transfer frame 105 is fixedly installed on the top of the auxiliary positioning frame 103, a processing chamber 102 is opened inside the heat transfer frame 105, a steam transfer frame 101 is fixedly installed on the outside of the heat transfer frame 105, and a product conduction pipe 104 is fixedly installed on the bottom of the auxiliary positioning frame 103. The product conduction pipe 104 is connected to the processing chamber 102. The material is first sent into the processing chamber 102, and then the reaction temperature is controlled by the heat transfer frame 105 according to the condensation reaction under specific temperature conditions. During the reaction process, the temperature monitoring component 204 is used to record the reading of the thermometer, and the flow rate of the heating medium is adjusted in time according to the reaction progress and temperature changes, so that the reaction temperature is kept within the set range.

[0022] like Figure 1 - Figure 4 As shown, the tank door assembly 2 includes a sealed tank door 201 hinged on the outside of the processing chamber 102, a telescopic conduction tube 202 is fixedly installed on the top of the sealed tank door 201, and the telescopic conduction tube 202 is fixedly installed on the steam transfer rack 101 on the side away from the sealed tank door 201, a pressure detection assembly 203 is fixedly installed on the top of the sealed tank door 201, and a temperature monitoring assembly 204 is fixedly installed on the top of the sealed tank door 201. When it is necessary to put in materials, the staff pulls the handle of the sealed tank door 201, causing the sealed tank door 201 to deflect along the processing chamber 102, and the staff puts the material into the processing chamber 102 through the gap between the fixed connecting plate 401 and the processing chamber 102 for processing, and the pressure detection assembly 203 detects the pressure environment of the processing in the processing chamber 102 to prevent excessive production pressure.

[0023] The linked upper and lower transmission assembly 3 includes a hollow guide frame 301 at the bottom of the auxiliary positioning frame 103, a first eccentric gear 303 is installed on the outer side of the hollow guide frame 301 through the rotation of the second motor, a second eccentric gear 304 is meshed and connected on the outer side of the first eccentric gear 303, a double circular fixing block 302 is rotatably installed on the second eccentric gear 304 and the outer side of the first eccentric gear 303, a built-in collar frame 306 is rotatably installed on the outer side of the second eccentric gear 304, a bidirectional guide plate 305 is fixedly installed on the outer side of the built-in collar frame 306, the bidirectional guide plate 305 is slidably installed on the outer side of the hollow guide frame 301, the built-in collar frame 306 is fixedly installed on one side of the bidirectional guide plate 305, the second motor is fixedly installed on the inner wall of the hollow guide frame 301, and the second motor drives the first eccentric gear 3 03 rotates. Since the first eccentric gear 303 is an eccentric mechanism, the first eccentric gear 303 drives the double-circle fixing block 302 to rotate along the connection with the hollow guide frame 301. During this process, the second eccentric gear 304 meshes with the first eccentric gear 303 and drives the second eccentric gear 304 to rotate along the double-circle fixing block 302. The second eccentric gear 304 has an eccentric connecting rod, which is rotatably connected to the built-in collar frame 306, causing the built-in collar frame 306 to rotate along the connection with the second eccentric gear 304. Because the two-way guide plate 305 is limited by the hollow guide frame 301 and can only slide up and down, the overall eccentric rotation of the double-circle fixing block 302 does not affect the built-in collar frame 306 sliding up and down along the hollow guide frame 301 with the two-way guide plate 305.

[0024] like Figure 4-Figure 7As shown, the built-in stirring assembly 4 includes a fixed connecting plate 401 fixedly mounted on the inner wall of the processing chamber 102, a hollow connecting rod 402 is rotatably mounted inside the fixed connecting plate 401, a positioning auxiliary rotating rod 403 is slidably mounted inside the hollow connecting rod 402 through a slide groove, a slide groove frame 407 is slidably mounted on the outer side of the positioning auxiliary rotating rod 403, the slide groove frame 407 is fixedly mounted on the inner wall of the processing chamber 102, and a first motor 409 is fixedly mounted on one end of the positioning auxiliary rotating rod 403 located inside the slide groove frame 407, and the first motor 409 is fixedly mounted. The first motor 409 is fixedly installed on the top of the built-in collar frame 306, and the first motor 409 is slidably installed inside the slide frame 407. A two-way connecting block 405 is fixedly installed on the outer side of the positioning auxiliary rotating rod 403, and two sets of stirring blades 404 are fixedly installed on both sides of the two-way connecting block 405. The positioning auxiliary rotating rod 403 is located below the stirring blade 404 and is hinged with a hollow guide tube 408. A stirring and cleaning rod 406 is slidably installed inside the hollow guide tube 408, and the stirring and cleaning rod 406 is attached to the inner wall of the processing chamber 102. Under normal conditions, the first motor 40 9 drives the positioning auxiliary rotating rod 403 to rotate, and the positioning auxiliary rotating rod 403 drives the stirring blade 404 and the stirring cleaning rod 406 to fully stir the incoming materials. As the linkage upper and lower transmission components 3 drive the first motor 409 to slide downward along the slide slot frame 407, the positioning auxiliary rotating rod 403 slides inside the hollow connecting rod 402 through the slide slot at the same time, and then the stirring blade 404 and the stirring cleaning rod 406 slide up and down along the hollow connecting rod 402 to further stir the materials. As the stirring cleaning rod 406 moves along the inner wall of the processing chamber 102 to The downward sliding motion scrapes and stirs the processing chamber 102. When the stirring blade 404 moves further downward, the hollow guide tube 408 is deflected along the positioning auxiliary rotating rod 403, and the stirring and cleaning rod 406 slides into the hollow guide tube 408 due to the pressure of the inner wall of the processing chamber 102. At this time, the stirring blade 404 can continue to move downward to avoid gaps in the processing chamber 102 that are not scraped by the stirring blade 404 and the stirring and cleaning rod 406, so that the residue of the material can be cleaned, thereby preventing a large amount of residual material from being stored in the equipment and affecting its later use.

[0025] In this embodiment, Figure 4-Figure 9As shown, the linked upper and lower transmission components 3 include two built-in sleeve frames 306 slidably installed inside the steam transfer frame 101 and the auxiliary positioning frame 103, the steam inner wall cleaning component 5 includes a plurality of guide balls 505 fixedly installed on the outside of the built-in sleeve frame 306, and the outside of the built-in sleeve frame 306 is hinged with a plurality of positioning movable rotating blocks 501 through a plurality of guide balls 505, a second side cleaning block 503 is fixedly installed on one side of the positioning movable rotating block 501, and a first side cleaning block 502 is fixedly installed on the other side of the positioning movable rotating block 501, and a telescopic arc rod 504 is fixedly installed between every two positioning movable rotating blocks 501. After the heating reaction is carried out inside the processing chamber 102, the processing The water vapor in the chamber 102 is transferred to the steam transfer frame 101 through the telescopic conduction pipe 202, so that the steam transfer frame 101 stores the heat of the water vapor, and the heat transfer frame 105 transfers the heat to the processing chamber 102 for heat supplement, thereby reducing the processing cost. When the upper and lower transmission components 3 are linked to drive the built-in sleeve ring frame 306 to slide up and down along the auxiliary positioning frame 103, the built-in sleeve ring frame 306 drives the multiple positioning movable rotating blocks 501 to slide up and down along the steam transfer frame 101 through the guide ball 505. During this process, the second side cleaning block 503 and the first side cleaning block 502 come into contact. In normal state, the first side cleaning block 502 and the telescopic arc rod 504 contact the steam. The inner wall of the steam transfer rack 101 is scraped and cleaned. Since the second side cleaning block 503 and the first side cleaning block 502 are hollow except for the edges, the scale adhesion to the first side cleaning block 502 and the second side cleaning block 503 can be reduced. In normal state, the first side cleaning block 502 moves upward along the positioning movable rotating block 501, while the second side cleaning block 503 moves downward. When the first side cleaning block 502 and the second side cleaning block 503 are caused by the difference in friction force generated by the dirt on the inner wall of the steam transfer rack 101, the positioning movable rotating block 501 is driven to deflect along the guide ball 505. The first side cleaning block 502 and the second side cleaning block 503 are made of elastic material, resulting in The first side cleaning block 502 and the second side cleaning block 503 are put into a compressed state, thereby improving the ability to remove dirt. When there is no friction generated by the dirt, the spring connected to the positioning movable rotating block 501 and the guide ball 505 restores the first side cleaning block 502 and the second side cleaning block 503 to their original positions, thereby preventing the first side cleaning block 502 and the second side cleaning block 503 from being too tightly fitted to the heating wall for a long time, which may cause damage to the cleaning components. Moreover, through the swinging of the first side cleaning block 502 and the second side cleaning block 503, the scale stains compressed and stored in the first side cleaning block 502 and the second side cleaning block 503 are easily shaken off to the bottom of the auxiliary positioning frame 103, so that they can be easily cleaned later.

[0026] 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.

[0027] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fluid heating device for recovering latent heat of condensation tank steam, comprising a condensation processing tank (1), characterized in that: The top of the condensation processing tank (1) is provided with a tank door assembly (2), the bottom of the condensation processing tank (1) is provided with a linked upper and lower transmission assembly (3), the interior of the condensation processing tank (1) is provided with a built-in stirring assembly (4), and the interior of the condensation processing tank (1) is provided with a steam inner wall cleaning assembly (5) slidably installed via the linked upper and lower transmission assembly (3); The condensation processing tank (1) comprises an auxiliary positioning frame (103), a heat transfer frame (105) is fixedly mounted on the top of the auxiliary positioning frame (103), a processing chamber (102) is provided inside the heat transfer frame (105), a steam transfer frame (101) is fixedly mounted on the outside of the heat transfer frame (105), a product transfer pipe (104) is fixedly mounted on the bottom of the auxiliary positioning frame (103), and the product transfer pipe (104) is arranged in a communicating state with the processing chamber (102); The linked upper and lower transmission assembly (3) comprises two built-in ring frames (306) slidably mounted inside the steam transfer frame (101) and the auxiliary positioning frame (103); The steam inner wall cleaning assembly (5) comprises a plurality of guide balls (505) fixedly mounted on the outside of an internal collar frame (306); a plurality of positioning movable rotating blocks (501) are hingedly mounted on the outside of the internal collar frame (306) via the plurality of guide balls (505); a second side cleaning block (503) is fixedly mounted on one side of the positioning movable rotating block (501); a first side cleaning block (502) is fixedly mounted on the other side of the positioning movable rotating block (501); and a telescopic arc rod (504) is fixedly mounted between every two positioning movable rotating blocks (501).

2. A fluid heating device for recovering latent heat of condensation tank steam according to claim 1, characterized in that: The tank door assembly (2) comprises a sealed tank door (201) hinged on the outside of the processing chamber (102), a telescopic conduction pipe (202) being fixedly mounted on the top of the sealed tank door (201), and a side of the telescopic conduction pipe (202) away from the sealed tank door (201) being fixedly mounted on a steam transfer rack (101).

3. A fluid heating device for recovering latent heat of condensation tank steam according to claim 2, characterized in that: A pressure detection component (203) is fixedly mounted on the top of the sealed tank door (201), and a temperature monitoring component (204) is fixedly mounted on the top of the sealed tank door (201).

4. A fluid heating device for recovering latent heat of condensation tank steam according to claim 1, characterized in that: The linked upper and lower transmission assembly (3) comprises a hollow guide frame (301) at the bottom of the auxiliary positioning frame (103); a first eccentric gear (303) is rotatably mounted on the outer side of the hollow guide frame (301) via a second motor; a second eccentric gear (304) is meshingly connected to the outer side of the first eccentric gear (303); and a double-circular fixing block (302) is rotatably mounted on the outer side of the second eccentric gear (304) and the first eccentric gear (303).

5. A fluid heating device for recovering latent heat of condensation tank steam according to claim 4, characterized in that: An internal collar frame (306) is rotatably mounted on the outer side of the second eccentric gear (304), a bidirectional guide plate (305) is fixedly mounted on the outer side of the internal collar frame (306), the bidirectional guide plate (305) is slidably mounted on the outer side of the hollow guide frame (301), and the internal collar frame (306) is fixedly mounted on one side of the bidirectional guide plate (305).

6. A fluid heating device for recovering latent heat of condensation tank steam according to claim 1, characterized in that: The built-in stirring assembly (4) comprises a fixed connecting plate (401) fixedly mounted on the inner wall of the processing chamber (102), a hollow connecting rod (402) being rotatably mounted inside the fixed connecting plate (401), and a positioning auxiliary rotating rod (403) being slidably mounted inside the hollow connecting rod (402) via a sliding groove.

7. A fluid heating device for recovering latent heat of condensation tank steam according to claim 6, characterized in that: A slide frame (407) is slidably mounted on the outer side of the positioning auxiliary rotating rod (403), and the slide frame (407) is fixedly mounted on the inner wall of the processing chamber (102). A first motor (409) is fixedly mounted on one end of the positioning auxiliary rotating rod (403) located inside the slide frame (407), and the first motor (409) is fixedly mounted on the top of the built-in ring frame (306), and the first motor (409) is slidably mounted inside the slide frame (407).

8. A fluid heating device for recovering latent heat of condensation tank steam according to claim 7, characterized in that: A bidirectional connecting block (405) is fixedly mounted on the outer side of the positioning auxiliary rotating rod (403), and two groups of stirring blades (404) are fixedly mounted on both sides of the bidirectional connecting block (405). A hollow guide tube (408) is hingedly mounted on the positioning auxiliary rotating rod (403) below the stirring blades (404), and a stirring and cleaning rod (406) is slidably mounted inside the hollow guide tube (408), and the stirring and cleaning rod (406) is attached to the inner wall of the processing chamber (102).

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