Hydrolysis acidification pool for cloth printing and dyeing wastewater treatment

Abstract

The invention discloses a hydrolytic acidification pool for cloth printing and dyeing wastewater treatment, the hydrolytic acidification pool comprises a hydrolytic acidification pool body, the lower end of the hydrolytic acidification pool body is fixedly provided with a pressure-bearing mounting plate, and the upper end of the pressure-bearing mounting plate is fixedly provided with a controller on one side of the hydrolytic acidification pool body; control lifting assemblies for adjusting the stirring reaction height are arranged at the two ends of the outer side of the hydrolysis acidification pool body, moving adjusting assemblies for transversely moving and adjusting the stirring position are arranged on the outer sides of the control lifting assemblies, control driving devices for driving stirring are arranged at the lower ends of the moving adjusting assemblies, and reaction stirring assemblies are arranged at the lower ends of the control driving devices. The reaction stirring assembly comprises an auxiliary stirring vertical rod rotationally connected to the lower end of the control driving device, a fixed ferrule fixedly connected to the outer side of the auxiliary stirring vertical rod, a transverse supporting rod fixedly connected to one end of the outer side of the fixed ferrule, and an arc-shaped wall scraping stirring plate fixedly mounted at the side end of the transverse supporting rod. The hydrolysis acidification pool has the advantage of adjustable stirring, and the reaction speed of the hydrolysis acidification pool is remarkably increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrolysis acidification tank, in particular to a hydrolysis acidification tank for treating cloth printing and dyeing wastewater. BACKGROUND

[0002] The hydrolysis acidification tank for treating cloth printing and dyeing wastewater is an environmental protection equipment for pretreating printing and dyeing wastewater by using the hydrolysis acidification of anaerobic microorganisms, and the core function is to decompose refractory pollutants and improve the efficiency of subsequent treatment.

[0003] The traditional equipment is mainly fixed position stirring, which can only cover the local area of the tank body, and the wastewater and microbial flora are difficult to fully contact, and it also lacks the functions of horizontal movement and height adjustment, so the wastewater at the edge and bottom of the tank body is easy to form a "dead zone", and the pollutants cannot be effectively decomposed; when facing different concentrations of dyes and auxiliaries in printing and dyeing wastewater, it is difficult to adapt to the treatment demand by changing the stirring intensity and range, the treatment effect is unstable, which further leads to uneven distribution of hydraulic retention time of wastewater, insufficient hydrolysis acidification reaction, and low pollutant removal rate. SUMMARY

[0004] The present application provides a hydrolysis acidification tank for treating cloth printing and dyeing wastewater, which has the advantages of adjustable stirring, and solves the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A hydrolysis acidification tank for treating cloth printing and dyeing wastewater, comprising a hydrolysis acidification tank body, a pressure bearing mounting plate is fixedly installed at the lower end of the hydrolysis acidification tank body, a controller is fixedly installed at the upper end of the pressure bearing mounting plate and located at one side of the hydrolysis acidification tank body, control lifting assemblies for adjusting the stirring reaction height are arranged at the outer sides of both ends of the hydrolysis acidification tank body, moving adjustment assemblies for horizontally moving and adjusting the stirring position are arranged at the outer sides of the control lifting assemblies, control driving devices for driving stirring are arranged at the lower ends of the moving adjustment assemblies, and reaction stirring assemblies are arranged at the lower ends of the control driving devices, wherein the reaction stirring assembly comprises an auxiliary stirring vertical rod rotatably connected at the lower end of the control driving device, a fixed sleeve ring fixedly connected at the outer side of the auxiliary stirring vertical rod, a horizontal support rod fixedly connected at one end of the outer side of the fixed sleeve ring, and an arc-shaped wall scraping stirring plate fixedly installed at the side end of the horizontal support rod.

[0006] Preferably, the control lifting assembly comprises a side installation bottom plate fixedly installed at the outer sides of both ends of the hydrolysis acidification tank body, and a vertical hydraulic lifting rod fixedly installed at the upper end of the side installation bottom plate.

[0007] It is worth noting that: the vertical hydraulic lifting rod drives the limit lifting plate and the side linkage lifting plate to move up and down, so as to adjust the height of the stirring assembly and adapt to different wastewater levels; however, it is necessary to regularly check the hydraulic oil level and sealing performance to avoid leakage.

[0008] The output end of the vertical hydraulic lifting rod is fixedly installed with a limiting lifting plate, and the upper end of the limiting lifting plate is fixedly connected with a side linkage lifting plate.

[0009] It is worth noting that the side linkage lifting plate connects the control lifting assembly and the movement adjusting assembly, realizes synchronous lifting of the two, and guarantees the overall stability of the stirring structure; but it is necessary to note that the two assemblies need to be kept synchronous during lifting to avoid tilting caused by unilateral stress.

[0010] Preferably, the movement adjusting assembly comprises a vertical fixing plate fixedly installed at the side end of the side linkage lifting plate and a protective cover plate fixedly connected at the side end of the vertical fixing plate.

[0011] It is worth noting that the vertical fixing plate fixes the first servo motor and the protective cover plate, provides installation support for the movement adjusting assembly, and guarantees the stability of the horizontal adjusting structure; but it is necessary to note that the vertical fixing plate needs to be perpendicular to the side linkage lifting plate during installation to avoid affecting the transmission accuracy of the adjusting screw rod.

[0012] Preferably, a first servo motor is fixedly installed at the side end of the vertical fixing plate, and an adjusting screw rod is fixedly installed at the output end of the first servo motor.

[0013] It is worth noting that the first servo motor provides precise driving force for the adjusting screw rod, realizes smooth movement of the horizontal screw rod slider, and precisely controls the stirring horizontal position; but it is necessary to note that the first servo motor needs to be precisely linked with the controller to control the rotating speed and direction.

[0014] Preferably, a horizontal screw rod slider is threadedly connected to the outside of the adjusting screw rod, both ends of the outside of the horizontal screw rod slider are fixedly connected with linkage crossbars, and the lower end of the horizontal screw rod slider is connected with the upper end of the control driving device.

[0015] It is worth noting that the horizontal screw rod slider connects the adjusting screw rod and the control driving device, transmits horizontal movement force, and drives the stirring assembly to switch the stirring area horizontally; but it is necessary to note that the horizontal screw rod slider needs to be threadedly matched with the adjusting screw rod and aligned with the guide direction during installation.

[0016] Preferably, guide rails are fixedly connected to the inner walls of the protective cover plate, and guide sliders are fixedly connected to the side ends of the linkage crossbars and slide on the guide rails.

[0017] It is worth noting that the guide sliders cooperate with the guide rails to assist the movement of the horizontal screw rod slider, improve the smoothness and stability of horizontal adjustment; but it is necessary to note that the guide sliders need to be prevented from exceeding the range of the guide rails to prevent falling off.

[0018] Preferably, a second servo motor is fixedly installed inside the control driving device, a driving pulley is fixedly installed outside the output shaft of the second servo motor, and a belt is drivingly connected to the outside of the driving pulley.

[0019] It is worth noting that: the driving pulley transmits the power of the second servo motor, drives the driven pulley to rotate through the belt, and realizes the synchronous driving of multiple groups of stirring rods; but attention should be paid to ensure that the specifications of the driven pulley are matched, and the belt tension is moderate.

[0020] Preferably, the outer side of the belt is drivingly connected with two groups of driven pulleys, and one group of driven pulleys is connected with the auxiliary stirring vertical rod at the lower end of the driving pulley.

[0021] It is worth noting that: the auxiliary stirring vertical rod is connected with the control driving device and various stirring and wall scraping parts to transmit rotary power and realize the functions of auxiliary stirring and wall scraping; but attention should be paid to ensure firm connection with the pulley to avoid loosening during rotation.

[0022] Preferably, the lower end of the other group of driven pulleys is fixedly installed with a main stirring vertical rod, the outer side of the main stirring vertical rod is fixedly installed with a spiral stirring piece, and the outer side of the auxiliary stirring vertical rod away from the horizontal support rod is fixedly installed with multiple auxiliary stirring pieces.

[0023] It is worth noting that: the spiral stirring piece generates axial thrust when rotating, promotes the up-and-down convection of wastewater, breaks the agglomeration state of pollutants, and improves the contact efficiency of wastewater and microorganisms; but attention should be paid to selecting corrosion-resistant materials to avoid corrosion by printing and dyeing wastewater.

[0024] Compared with the prior art, the present application has the following advantages: In the present application, the stirring depth can be flexibly adjusted according to the wastewater level and pollutant distribution in the pool by using the control lifting assembly, so as to avoid insufficient stirring caused by changes in liquid level and adapt to different water treatment scenarios; the stirring coverage can be expanded by using the moving adjustment assembly to eliminate the stirring dead zone at the edge and corner of the pool body, so that the wastewater and microbial flora can be fully contacted to improve the mixing uniformity; the reaction stirring assembly can break the agglomeration state of wastewater and promote the decomposition of macromolecular pollutants; at the same time, the pool wall pollution is reduced, the effective reaction space is maintained, and the hydrolysis acidification reaction efficiency and pollutant removal rate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the overall structure of the present application; Figure 2 It is a three-dimensional structure schematic diagram of the control lifting assembly of the present application; Figure 3 It is a three-dimensional split structure schematic diagram of the protective cover plate of the present application; Figure 4 It is a three-dimensional structure schematic diagram of the linkage cross bar of the present application; Figure 5 It is a three-dimensional split structure schematic diagram of the control driving device of the present application; Figure 6 It is a three-dimensional structure schematic diagram of the auxiliary stirring vertical rod of the present application; Figure 7 The schematic view of the three-dimensional structure of the spiral stirring sheet of the present application.

[0026] The drawings show: 1, hydrolysis acidification tank body; 2, pressure installation plate; 3, controller; 6, control driving device; 401, side installation bottom plate; 402, vertical hydraulic lifting rod; 403, limiting lifting plate; 404, side linkage lifting plate; 501, vertical fixed plate; 502, protective cover plate; 503, first servo motor; 504, adjusting screw; 505, transverse screw sliding block; 506, linkage cross bar; 507, guide sliding rail; 508, guide sliding block; 601, second servo motor; 602, driving pulley; 603, belt; 604, driven pulley; 701, auxiliary stirring vertical rod; 702, fixed sleeve ring; 703, transverse support rod; 704, arc-shaped wall scraping stirring plate; 705, main stirring vertical rod; 706, spiral stirring sheet; 707, auxiliary stirring sheet. DETAILED DESCRIPTION

[0027] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0029] Example 1; as Figures 1-6As shown, including the hydrolysis acidification tank body 1, the lower end of the hydrolysis acidification tank body 1 is fixedly installed with a pressure bearing plate 2, the upper end of the pressure bearing plate 2 is fixedly installed with a controller 3 on one side of the hydrolysis acidification tank body 1, both ends of the hydrolysis acidification tank body 1 are provided with a control lifting assembly for adjusting the stirring reaction height, the outer side of the control lifting assembly is provided with a moving adjustment assembly for transversely moving to adjust the stirring position, the lower end of the moving adjustment assembly is provided with a control driving device 6 for driving stirring, the lower end of the control driving device 6 is provided with a reaction stirring assembly, the reaction stirring assembly comprises an auxiliary stirring vertical rod 701 rotatably connected to the lower end of the control driving device 6, a fixed sleeve ring 702 fixedly connected to the outer side of the auxiliary stirring vertical rod 701, a transverse support rod 703 fixedly connected to one end of the outer side of the fixed sleeve ring 702, and an arc-shaped wall scraping stirring plate 704 fixedly installed on the side end of the transverse support rod 703, a second servo motor 601 is fixedly installed inside the control driving device 6, a driving pulley 602 is fixedly installed on the outer side of the output shaft of the second servo motor 601, a belt 603 is drivingly connected to the outer side of the driving pulley 602, a driven pulley 604 is drivingly connected to the outer side of the belt 603, and the driven pulley 604 and the lower end of the driving pulley 602 are both connected with the auxiliary stirring vertical rod 701, a liquid level sensor is arranged in the middle of the inner wall of the hydrolysis acidification tank body 1, the model is CYB-20S, the measurement range is 0-5m, the accuracy is ±0.5%FS, and the wastewater liquid level data is monitored in real time and transmitted to the controller 3.

[0030] The control lifting assembly comprises side installation bottom plates 401 fixedly installed on both ends of the outer side of the hydrolysis acidification tank body 1, and vertical hydraulic lifting rods 402 fixedly installed on the upper end of the side installation bottom plates 401. The output end of the vertical hydraulic lifting rod 402 is fixedly installed with a limit lifting plate 403, and the upper end of the limit lifting plate 403 is fixedly connected with a side linkage lifting plate 404. The side linkage lifting plate 404 connects the control lifting assembly and the moving adjustment assembly, realizes synchronous lifting of the two, and guarantees the overall stability of the stirring structure.

[0031] The moving adjustment assembly comprises a vertical fixed plate 501 fixedly installed on the side end of the side linkage lifting plate 404, a protective cover plate 502 fixedly connected on the side end of the vertical fixed plate 501, a first servo motor 503 fixedly installed on the side end of the vertical fixed plate 501, an adjusting screw rod 504 fixedly installed on the output end of the first servo motor 503, a transverse screw rod sliding block 505 threadedly connected on the outer side of the adjusting screw rod 504, linkage cross bars 506 fixedly connected on both ends of the outer side of the transverse screw rod sliding block 505, the lower end of the transverse screw rod sliding block 505 being connected with the upper end of the control driving device 6, guide rails 507 fixedly connected on both sides of the inner wall of the protective cover plate 502, guide sliding blocks 508 fixedly connected on the side end of the linkage cross bars 506 and sliding on the guide rails 507, the guide sliding blocks 508 cooperating with the guide rails 507 to assist the transverse screw rod sliding block 505 to move, improving the smoothness and stability of transverse adjustment.

[0032] In the process of working, after starting the device, the controller 3 controls the vertical hydraulic lifting rod 402 to extend and retract according to the printing and dyeing wastewater level and the pollutant distribution, drives the limiting lifting plate 403 and the side linkage lifting plate 404 to move up and down, and then adjusts the height of the moving adjustment assembly, the control driving device 6 and the reaction stirring assembly; The controller 3 controls the first servo motor 503 to start, the first servo motor 503 drives the adjusting screw rod 504 to rotate, the adjusting screw rod 504 drives the horizontal screw rod sliding block 505 to move horizontally, the linkage horizontal rod 506 moves with the horizontal screw rod sliding block 505 and slides on the guide sliding rail 507 through the guide sliding block 508 to keep stable, and then drives the control driving device 6 and the reaction stirring assembly to adjust the position horizontally; The controller 3 controls the second servo motor 601 to start, the second servo motor 601 drives the driving pulley 602 to rotate, the driving pulley 602 drives the driven pulley 604 to rotate through the belt 603, and the driven pulley 604 and the driving pulley 602 jointly drive the auxiliary stirring vertical rod 701 to rotate, the auxiliary stirring vertical rod 701 drives the fixed sleeve ring 702, the horizontal support rod 703 and the arc-shaped wall scraping stirring plate 704 to rotate, and the arc-shaped wall scraping stirring plate 704 scrapes the dirt in the inner wall of the hydrolysis acidification tank body 1. During the treatment process, the controller 3 continuously coordinates the control of the lifting assembly, the moving adjustment assembly and the control driving device 6 to ensure that the reaction stirring assembly stirs the wastewater fully at the appropriate height and horizontal position, and completes the hydrolysis acidification treatment of the printing and dyeing wastewater.

[0033] Example 2: please refer to Figure 1 - Figure 7 On the basis of example one, the main stirring vertical rod 705, the spiral stirring piece 706 and the auxiliary stirring piece 707 are additionally provided, and two groups of driven pulleys 604 are provided, one group of driven pulleys 604 and the lower end of the driving pulley 602 are connected with the auxiliary stirring vertical rod 701, the lower end of the other group of driven pulleys 604 is fixedly installed with the main stirring vertical rod 705, the outer side of the main stirring vertical rod 705 is fixedly installed with the spiral stirring piece 706, and the outer side of the auxiliary stirring vertical rod 701 away from the horizontal support rod 703 is fixedly installed with multiple groups of auxiliary stirring pieces 707. A COD sensor is installed at the water outlet end of the hydrolysis acidification tank body 1, the model is TD-100, the measurement range is 0-5000mg / L, the accuracy is ±5%FS, and the wastewater COD concentration is monitored in real time to provide a basis for stirring intensity adjustment.

[0034] In the process of working, the operation logic of the control of the lifting assembly and the moving adjustment assembly in Embodiment 1 is continued, and the controller 3 dynamically adjusts the rotating speed of the second servo motor 601 according to the wastewater pollutant concentration data monitored by the COD sensor: if the COD concentration is higher than the preset value, the rotating speed of the second servo motor 601 is increased to 2000 rpm to enhance the stirring intensity; if the COD concentration is lower than the preset value, the rotating speed is reduced to 1000 rpm to save energy consumption; In the process of operation of the second servo motor 601, the other group of driven pulleys 604 drives the main stirring vertical rod 705 to rotate, and the helical stirring pieces 706 on the outside of the main stirring vertical rod 705 rotate with it. The helical structure of the helical stirring pieces 706 generates an axial thrust to promote the up-and-down convection of the wastewater in the pool, break the agglomeration state of the dye molecules, fiber auxiliaries and other macromolecular pollutants, and make the pollutants more easily contact with the anaerobic microorganisms. At the same time, the multiple groups of auxiliary stirring pieces 707 on the outside of the auxiliary stirring vertical rod 701 rotate synchronously with the auxiliary stirring vertical rod 701 to perform secondary stirring on the wastewater at the edges and corners of the pool body, eliminate the “stirring dead zone” that may exist in Embodiment 1 only by the auxiliary stirring vertical rod 701, and further improve the uniformity of the wastewater mixing; in addition, the arc-shaped wall scraping stirring plate 704 continuously scrapes off the accumulated dirt on the pool wall, and the convection stirring of the main stirring vertical rod 705 and the helical stirring pieces 706 can bring the scraped dirt back into the wastewater system, ensure that the dirt participates in the hydrolysis acidification reaction, and avoid the dirt from depositing on the pool bottom and being difficult to handle.

[0035] The above working principles are as follows: the controller 3 as the core control unit receives the real-time monitoring data of the liquid level sensor and the COD sensor, and overall coordinates and controls the operation of the lifting assembly, the moving adjustment assembly, the control driving device 6 and the reaction stirring assembly; the lifting assembly adjusts the height of the stirring assembly by the extension and retraction of the vertical hydraulic lifting rod 402, adapts to different wastewater levels, and avoids excessive stirring depth or shallowness; the moving adjustment assembly drives the stirring assembly to move horizontally by the transmission cooperation of the first servo motor 503 and the adjusting screw rod 504, and expands the stirring coverage range; the control driving device 6 provides stable power for the reaction stirring assembly through the transmission structure of the second servo motor 601, the driving pulley 602, the driven pulley 604 and the belt 603. In the reaction stirring assembly, the main stirring vertical rod 705 and the helical stirring pieces 706 realize the up-and-down convection of the wastewater, the auxiliary stirring vertical rod 701 and the auxiliary stirring pieces 707 strengthen the edge stirring, and the arc-shaped wall scraping stirring plate 704 cleans the pool wall. The multiple components cooperatively solve the problems of “uneven stirring, serious dirt accumulation and insufficient reaction” of the traditional hydrolysis acidification pool, finally improve the hydrolysis acidification efficiency of the printing and dyeing wastewater, decompose the macromolecular refractory pollutants into small molecular easily degradable substances, and reduce the load of the subsequent treatment process.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A hydrolysis acidification tank for treating textile dyeing and printing wastewater, comprising a hydrolysis acidification tank body (1), characterized in that, A pressure-bearing mounting plate (2) is fixedly installed at the lower end of the hydrolysis acidification tank body (1). A controller (3) is fixedly installed at the upper end of the pressure-bearing mounting plate (2) on one side of the hydrolysis acidification tank body (1). Both ends of the hydrolysis acidification tank body (1) are equipped with control lifting components for adjusting the stirring reaction height. A moving adjustment component for adjusting the stirring position by moving laterally is provided on the outside of the control lifting component. A control driving device (6) for driving the stirring is provided at the lower end of the moving adjustment component. A reaction stirring component is provided at the lower end of the control driving device (6). The reaction stirring component includes an auxiliary stirring vertical rod (701) rotatably connected to the lower end of the control driving device (6), a fixed collar (702) fixedly connected to the outside of the auxiliary stirring vertical rod (701), a transverse support rod (703) fixedly connected to one end of the outside of the fixed collar (702), and an arc-shaped scraping stirring plate (704) fixedly installed on the side of the transverse support rod (703).

2. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 1, characterized in that, The control lifting assembly includes a side mounting base plate (401) fixedly installed at both ends of the outer side of the hydrolysis acidification tank body (1), and a vertical hydraulic lifting rod (402) fixedly installed on the upper end of the side mounting base plate (401).

3. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 2, characterized in that, A limit lifting plate (403) is fixedly installed at the output end of the vertical hydraulic lifting rod (402), and a side linkage lifting plate (404) is fixedly connected to the upper end of the limit lifting plate (403).

4. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 1, characterized in that, The movable adjustment assembly includes a vertical fixing plate (501) fixedly installed on the side end of the side linkage lifting plate (404) and a protective outer cover plate (502) fixedly connected to the side end of the vertical fixing plate (501).

5. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 4, characterized in that, A first servo motor (503) is fixedly installed on the side of the vertical fixing plate (501), and an adjusting screw (504) is fixedly installed on the output end of the first servo motor (503).

6. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 5, characterized in that, The adjusting screw (504) is threaded to the outside of a transverse screw slider (505). Both ends of the transverse screw slider (505) are fixedly connected to a linkage crossbar (506). The lower end of the transverse screw slider (505) is connected to the upper end of the control drive device (6).

7. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 6, characterized in that, The inner walls of the protective outer cover (502) are fixedly connected to both sides of the guide slide rail (507), and the side end of the linkage crossbar (506) is fixedly connected to the guide slider (508) that slides on the guide slide rail (507).

8. The hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 1, characterized in that, The control drive device (6) has a second servo motor (601) fixedly installed inside. The output shaft of the second servo motor (601) has a drive pulley (602) fixedly installed on the outside. The drive pulley (602) is connected to a belt (603) for transmission.

9. A hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 8, characterized in that, Two sets of driven pulleys (604) are connected to the outer side of the belt (603), and the lower ends of one set of driven pulleys (604) and the driving pulley (602) are connected to the auxiliary stirring vertical rod (701).

10. A hydrolysis acidification tank for treating textile dyeing and printing wastewater according to claim 9, characterized in that, Another set of driven pulleys (604) has a main stirring rod (705) fixedly installed at the lower end. A spiral stirring blade (706) is fixedly installed on the outside of the main stirring rod (705). Multiple sets of auxiliary stirring blades (707) are fixedly installed on the side of the auxiliary stirring rod (701) away from the transverse support rod (703).

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