CN116899516A - A chemical reaction equipment that is easy to clean - Google Patents

Abstract

The invention relates to the technical field of chemical reaction equipment, in particular to chemical reaction equipment convenient to clean. The invention provides chemical reaction equipment which can scrape scale on the inner wall of a kettle body in the reaction process and is convenient to clean, comprising a support frame, a reaction kettle body, a side material injection pipeline, a kettle body top cover, a stirring driving motor, a stirring shaft body and the like; fixedly connected reaction kettle body on the support frame, set up the side on the reaction kettle body and annotate the material pipeline, reaction kettle body top sets up cauldron body top cap, installs stirring driving motor on the cauldron body top cap, and stirring driving motor's output shaft passes cauldron body top cap and fixedly connected stirring shaft body on this output shaft. The spiral scraping component provided by the invention can scrape the inner wall of the reaction kettle body by utilizing the scale scraping plate in the reaction stirring process of the reaction kettle body, so that the condition that scale is accumulated in the reaction kettle body can be effectively avoided, and the subsequent cleaning process is more convenient.

Description

A chemical reaction equipment that is easy to clean

Technical field

The invention relates to the technical field of chemical reaction equipment, and in particular to a chemical reaction equipment that is easy to clean.

Background technique

Stainless steel reactors are widely used as pressure vessels for reactions, evaporation, synthesis, polymerization, saponification, sulfonation, chlorination, nitration and other processes in chemical, food, coating, hot melt adhesive, silica gel, paint, medicine, and petrochemical production. , such as reactors, reaction kettles, decomposition kettles, polymerization kettles, etc. The reaction pot is mainly composed of four major components: inner tank, jacket, stirring device, and support base.

When using a chemical reactor, it is necessary to add various chemical raw materials, such as powders, solvents, solid particles and special gases. After adding them to the tank, they undergo closed stirring, heating and mixing. After a series of operations, the corresponding Chemical reactions, but during multiple reactions, the reactor comes into contact with different raw materials, so it is easy for some chemical dirt to adhere to the inner wall of the tank. After a long period of fouling, it is easy to cause the reaction raw materials inside the kettle to Contamination affects the reaction effect, so after using it for a period of time, the inside of the kettle needs to be cleaned. The conventional cleaning method is to soak the inside of the kettle with chemicals. This cleaning method requires a large amount of chemicals. , it will also become extremely troublesome to handle the chemicals after cleaning is completed, and they need to be purified before they can be discharged, which can easily cause environmental pollution.

Contents of the invention

In order to overcome the shortcoming that existing chemical reaction kettles are prone to scale accumulation on the inner wall of the kettle body during the reaction of raw materials, the present invention provides an easy-to-clean chemical reaction kettle that can scrape off scale buildup on the inner wall of the kettle body during the reaction process. reaction equipment.

The technical embodiment of the present invention is: a chemical reaction equipment that is easy to clean, including a support frame, a reaction kettle body, a side injection pipe, a top cover of the kettle body, a stirring drive motor, a stirring shaft body, a stirring frame and a spiral scraper Wipe assembly, the reaction kettle body is fixed on the support frame, the side injection pipe is set on the reaction kettle body, the top cover of the kettle body is set on the top of the reaction kettle body, the stirring drive motor is installed on the top cover of the kettle body, and the output shaft of the stirring drive motor passes through The top cover of the kettle body is passed and the stirring shaft body is fixed on the output shaft. The lower part of the stirring shaft body is fixed on the stirring frame. A spiral scraping assembly is arranged on the stirring shaft body.

Further, the spiral scraping assembly includes a fixed plate, a scale scraping plate and a spiral guide bar. The stirring shaft body is engraved with a reciprocating thread groove, and the reciprocating threads on the stirring shaft body are threadedly connected to the fixed plate. The fixed plate is fixed The scale scraping plate is connected to the inside wall of the reaction kettle body. The scale scraping plate is in contact with the inner wall of the reaction kettle body. The spiral guide strip is fixed on the inner wall of the reaction kettle body. The scale scraping plate is slidingly connected to the spiral guide strip.

Further, a bottom wall scraping assembly is also included, and a bottom wall scraping assembly is provided at the lower part of the stirring shaft body; the bottom wall scraping assembly includes a cross fixing frame, a first fixing collar, an inclined scraper and a second fixing collar. , the lower part of the stirring shaft body is fixed with a cross fixing frame, the cross fixing frame is fixed with a first fixed collar, and a number of inclined scrapers are fixed with the first fixed collar, and the inclined scrapers are in contact with the inner wall of the reaction kettle body, and the inclined scrapers are The ends of the plates are jointly fixed with the second fixing collar.

Further, it also includes a cleaning liquid replenishing component. The cleaning liquid replenishing component is provided on the outer wall of the reaction kettle body; the cleaning liquid replenishing component includes a liquid storage frame, a connecting pipe, an auxiliary feeding pipe and a valve. The liquid storage frame is fixedly connected to one end of the connecting pipe, and the other end of the connecting pipe is connected to the reaction kettle body. The connecting pipe is provided with a valve, and the liquid storage frame is connected to the auxiliary feeding pipe.

Furthermore, a collection mechanism is also included, and a collection mechanism is provided in the lower part of the reaction kettle body; the collection mechanism includes a first installation collar, a first driving motor, a second installation collar and a collection assembly, and the lower part of the reaction kettle body is fixedly connected to the first installation collar. The first installation collar is fixedly connected to the first drive motor, and the second installation collar is fixed to the output shaft of the first drive motor. The second installation collar can be connected with the reaction kettle body along with the rotation of the first drive motor. The discharge openings overlap, and a collection component is set on the second installation collar.

Further, the collection assembly includes a collection frame, a liquid pump, a conduit and a filter. The bottom of the second fixed collar is fixed to the collection frame. A liquid pump is installed at the bottom of the collection frame. The water inlet of the liquid pump is connected to the collection frame. , the water outlet of the liquid pump is connected to one end of the conduit, the other end of the conduit is connected to the liquid storage frame, and the filter screen is fixed on the collection frame.

Further, a pushing component is also included, and a pushing component is provided on the second fixed collar; the pushing component includes a first mounting frame, a second driving motor and a rotating concave wheel, and the bottom of the second fixed collar is fixedly connected to the first mounting frame. , the second driving motor is installed on the first mounting frame, the first mounting frame is symmetrically connected to the rotating concave wheel, and the output shaft of the second driving motor is fixedly connected to one of the rotating concave wheels.

Further, a percussion component is also included, and the percussion component is provided on the first mounting frame; the percussion component includes a push rod, a third drive motor, a second mounting frame, a swing block, a knocking body, a contact frame, and a protrusion. Collar, limiting block and spring, the third drive motor is installed on the first mounting frame, the second mounting frame is fixed on the output shaft of the third drive motor, the swing block is hinged on the second mounting frame, and the swing block is connected to the second mounting frame. There is a torsion spring at the hinge between the frames, the knocking ball is fixed on the swing block, and a push rod is slidably inserted between the rotating concave wheels on both sides. There is a cavity at the bottom of the stirring shaft body, and the cavity is symmetrically slidingly connected. The limiting block and the mixing shaft body are jointly fixed with a spring. The ejector pin is fixed with a protruding collar. The ejector slides into the cavity and is stuck between the limiting blocks through the protruding collar. The ejector pin The lower part is fixed to the contact frame, and the contact frame is in contact with the knocking ball.

Beneficial effects: 1. The spiral scraping assembly provided in the present invention can use the fouling scraper plate to scrape the inner wall of the reaction kettle during the reaction stirring process of the reaction kettle, thereby effectively preventing the reaction kettle from being blocked. The internal raw materials will not accumulate scale during the reaction process, and it will be more convenient in the subsequent cleaning process;

2. The bottom wall scraping assembly provided in the present invention can scrape the inner wall of the lower part of the reaction kettle body to clean the material scale at different positions;

3. The collection mechanism provided in the present invention can separate and collect the cleaning liquid during the cleaning process and the agglomerated scale accumulated in the cleaning process, so as to achieve the effect of rapid processing.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of the present invention.

Figure 2 is a schematic cross-sectional view of the three-dimensional structure of the reaction kettle body of the present invention.

Figure 3 is a schematic three-dimensional structural diagram of the spiral scraping assembly of the present invention.

Figure 4 is a schematic three-dimensional structural diagram of the bottom wall scraping assembly of the present invention.

Figure 5 is a schematic three-dimensional structural diagram of the cleaning fluid replenishing assembly of the present invention.

Figure 6 is a schematic three-dimensional structural diagram of the first mounting collar, the first driving motor and the second mounting collar of the present invention.

Figure 7 is a schematic three-dimensional structural diagram of the collection assembly of the present invention.

Figure 8 is a schematic three-dimensional structural diagram of the collection assembly of the present invention from another perspective.

Figure 9 is a schematic three-dimensional structural diagram of the pushing assembly of the present invention.

Figure 10 is a schematic three-dimensional structural diagram of the pushing assembly of the present invention from another perspective.

Figure 11 is a schematic three-dimensional structural diagram of the percussion component of the present invention.

Figure 12 is a schematic three-dimensional structural diagram of the push rod, contact frame and protruding collar of the present invention.

Figure 13 is a schematic three-dimensional structural diagram of the specific positions of the limiting block and spring of the present invention.

Reference numbers: 1_support frame, 2_reaction kettle body, 3_side injection pipe, 4_kettle body top cover, 5_stirring drive motor, 6_stirring shaft, 7_stirring frame, 81_fixed Plate, 82_scale scraping plate, 83_spiral guide bar, 91_cross fixed frame, 92_first fixed collar, 93_inclined scraper, 94_second fixed collar, 101_liquid storage frame , 102_Connecting pipe, 103_auxiliary feeding pipe, 104_valve, 111_first installation collar, 112_first drive motor, 113_second installation collar, 121_collection frame, 122_liquid pump, 123_Conduit, 124_Filter, 131_First mounting bracket, 132_Second driving motor, 133_Rotating concave wheel, 141_Ejection rod, 142_Third driving motor, 143_Second mounting bracket, 144_ Swing block, 145_knocking ball, 146_contact frame, 147_protruding collar, 148_limiting block, 149_spring.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

Embodiment 1: A chemical reaction equipment that is easy to clean, as shown in Figures 1 and 2, including a support frame 1, a reaction kettle body 2, a side injection pipe 3, a top cover 4 of the kettle body, and a stirring drive motor 5 , stirring shaft body 6, stirring frame 7 and spiral scraping assembly, the reaction kettle body 2 is fixedly installed with bolts on the support frame 1, and the side injection pipe 3 is connected to the upper outer wall of the reaction kettle body 2 for feeding the reaction kettle body Add auxiliary materials or other materials into 2, and a top cover 4 of the reaction kettle body 2 is provided on the top of the reaction kettle body 2 for closing the reaction kettle body 2. A stirring drive motor 5 is installed on the top cover 4 of the reaction kettle body, and the output shaft of the stirring drive motor 5 passes through the kettle. The top cover 4 of the kettle body is fixed on the output shaft through a coupling. The lower part of the stirring shaft body 6 is fixed to the stirring frame 7. A spiral scraping assembly is provided on the stirring shaft body 6. When in use, the top cover 4 of the kettle body is fixed. After opening, various reaction materials can be added to the reaction kettle body 2. After the addition is completed, the top cover 4 of the kettle body can be closed, and heating and stirring begin. During this process, the spiral scraping assembly can adhere to the inner wall of the reaction kettle body 2. The material is scraped off.

As shown in Figures 2 and 3, the spiral scraping assembly includes a fixed plate 81, a scale scraping plate 82 and a spiral guide bar 83. The stirring shaft 6 is engraved with a reciprocating thread groove, and the stirring shaft 6 has a reciprocating thread. The upper thread is connected to the fixed plate 81. As the stirring shaft 6 rotates, the fixed plate 81 can move up and down along the reciprocating threads on the stirring shaft 6. The fixed plate 81 is fixed with a scale scraping plate 82, which can scrape the scale. The plate 82 is in contact with the inner wall of the reaction kettle body 2. The spiral guide bar 83 is fixed on the inner wall of the reaction kettle body 2. The scale scraping plate 82 is slidingly connected to the spiral guide strip 83. The scale scraping plate 82 follows the fixed plate. During the downward movement of 81, the dirt scraping plate 82 will also slide along the spiral guide bar 83, thereby realizing that during the downward movement of the fixed plate 81, the dirt scraping plate 82 will also slide along the spiral guide bar 83. Scraping the inner wall of the reaction kettle body 2 can effectively avoid scale accumulation during the reaction process, and at the same time, it can make cleaning the inner wall more effective during the cleaning process.

As shown in Figure 4, it also includes a bottom wall scraping assembly, and a bottom wall scraping assembly is provided at the lower part of the stirring shaft body 6; the bottom wall scraping assembly includes a cross fixing frame 91, a first fixing collar 92, and an inclined scraper 93 and a second fixed collar 94. The lower part of the mixing shaft body 6 is fixed with a cross fixing frame 91. The cross fixing frame 91 can rotate following the rotation of the stirring shaft body 6. The cross fixing frame 91 is fixed with a first fixing collar 92. A fixed collar 92 is fixed with a plurality of inclined scrapers 93. The inclined scrapers 93 are in contact with the inner wall of the reaction kettle body 2. As the stirring shaft 6 rotates, the inclined scrapers 93 will contact the lower part of the reaction kettle body 2. The end of the inclined scraper 93 is jointly fixed with a second fixed collar 94, and the second fixed collar 94 is used to maintain the inclined scraper. The plate 93 can be stabilized to avoid deflection during rotation.

As shown in Figure 5, a cleaning fluid replenishing component is also included. A cleaning fluid replenishing component is provided on the outer wall of the reactor body 2; the cleaning fluid replenishing component includes a liquid storage frame 101, a connecting pipe 102, an auxiliary feeding pipe 103 and a valve 104. , the liquid storage frame 101 is fixed with bolts on the outer wall of the reaction kettle body 2. The cleaning liquid for cleaning the reaction kettle body 2 can be stored inside the liquid storage frame 101. One end of the liquid storage frame 101 is connected to the connecting pipe 102, and the connecting pipe The other end of 102 is connected to the reaction kettle body 2. A valve 104 is provided on the connecting pipe 102. By opening and closing the valve 104, the cleaning liquid in the liquid storage frame 101 can enter the inside of the reaction kettle body 2. The liquid storage frame The body 101 is connected to an auxiliary feeding pipe 103, and the auxiliary feeding pipe 103 can be used to replenish cleaning fluid into the liquid storage frame 101.

As shown in Figures 6 and 7, a collection mechanism is also included. A collection mechanism is provided at the lower part of the reactor body 2; the collection mechanism includes a first installation collar 111, a first drive motor 112, a second installation collar 113 and a collection assembly. , the lower part of the reaction kettle body 2 is fixed with the first installation collar 111, the first installation collar 111 is fixed with the first drive motor 112, and the output shaft of the first drive motor 112 is connected with the second installation collar 113 through a key. The second installation collar 113 is located below the discharge opening of the reaction kettle body 2. The second installation collar 113 can coincide with the discharge opening of the reaction kettle body 2 with the rotation of the first drive motor 112. When cleaning the reaction kettle body 2 , the first drive motor 112 drives the second installation collar 113 to rotate to coincide with the discharge port. A collection component for collecting discharged residue and cleaning fluid is provided on the second installation collar 113. The second installation collar 113 rotates to After coinciding with the discharge port, the collection component can be used for collection processing.

As shown in Figures 7 and 8, the collection assembly includes a collection frame 121, a liquid pump 122, a conduit 123 and a filter screen 124. The bottom of the second fixed collar 94 is fixed to the collection frame 121, and the bottom of the collection frame 121 is equipped with a liquid pump. 122. The water inlet of the liquid pump 122 is connected to the collection frame 121, the water outlet of the liquid pump 122 is connected to one end of the conduit 123, and the other end of the conduit 123 is connected to the liquid storage frame 101, thus cleaning the reaction kettle body. The cleaning liquid after 2 will fall into the collection frame 121, and the cleaning liquid will be sent to the liquid storage frame 101 under the action of the liquid pump 122, thereby realizing the secondary collection and utilization of the cleaning liquid. The collection frame 121 The filter screen 124 is fixed on the liquid storage frame 101 , and the filter screen 124 can filter the discharged solid residue to prevent the residue from entering the liquid storage frame 101 .

Embodiment 2: On the basis of Embodiment 1, as shown in Figures 9 and 10, a push assembly is also included. The push assembly is provided on the second fixed collar 94; the push assembly includes a first mounting bracket 131, a second The driving motor 132 and the rotating concave wheel 133, the bottom of the second fixed collar 94 is fixed to the first mounting bracket 131 through bolts, the second driving motor 132 is installed on the first mounting bracket 131, and the rotating concave wheel is symmetrically connected to the first mounting bracket 131 133. The output shaft of the second driving motor 132 is fixedly connected to one of the rotating concave wheels 133, and the rotating concave wheel 133 can be driven to rotate by the second driving motor 132.

As shown in Figures 11 to 13, it also includes a percussion component. The percussion component is provided on the first mounting frame 131; the percussion component includes a push rod 141, a third drive motor 142, a second mounting frame 143, and a swing block. 144. Knock the ball body 145, the contact frame 146, the protruding collar 147, the limiting block 148 and the spring 149. The third driving motor 142 is installed on the first mounting frame 131, and the output shaft of the third driving motor 142 is connected to the third driving motor 142 through a key. The second mounting frame 143 has a hinged swing block 144 on the second mounting frame 143. A torsion spring is provided at the hinge between the swing block 144 and the second mounting frame 143. The torsion spring is used to keep the swing block 144 in position after deflection. Return to the original position, the swing block 144 is welded with the knocking ball 145, and a ejector pin 141 is slidably inserted between the rotating concave wheels 133 on both sides. The ejector pin 141 can contact the rotating concave wheel 133, and is driven by the second driving motor 132. The rotation of the driving and rotating concave wheel 133 will cause the ejector rod 141 to slide, and the ejector rod 141 slides through the collection frame 121. There is a cavity at the bottom of the stirring shaft 6, and the restriction block 148 is symmetrically and slidingly connected in the cavity. The spring 149 is fixed together with the stirring shaft body 6, and the protruding collar 147 is fixed on the ejector pin 141. The ejector pin 141 can slide into the cavity under the push of the rotating concave wheel 133 and be stuck in the limit by the protruding collar 147. Between the blocks 148, the lower part of the ejector rod 141 is fixed to the contact frame 146, and the contact frame 146 is in contact with the knocking ball 145. When the ejector pin 141 slides and snaps into the cavity, the third driving motor 142 rotates, and then brings the knocking ball 145 with it. 145 rotates and contacts the contact frame 146 during the rotation, thereby knocking the contact frame 146 and transmitting the vibration to the ejector rod 141. The ejector rod 141 transmits vibration to the stirring shaft 6 and the cross fixing frame 91, which in turn can make The accumulated scale is shaken to avoid the problem that the scale cannot fall off after being scraped off.

The technical principles of the embodiments of the present invention are described above with reference to specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations here, those skilled in the art can think of other specific implementations of the embodiments of the present invention without any creative effort, and these methods will all fall within the protection scope of the embodiments of the present invention.

Claims (8)

1. Chemical industry reaction equipment convenient to wash, including support frame (1), reation kettle body (2), side notes material pipeline (3) and cauldron body top cap (4), characterized by: still including stirring driving motor (5), stirring shaft body (6), stirring frame (7) and spiral scraping subassembly, rigid coupling reation kettle body (2) on support frame (1), set up side notes material pipeline (3) on reation kettle body (2), reation kettle body (2) top sets up kettle body top cap (4), install stirring driving motor (5) on kettle body top cap (4), stirring driving motor (5)'s output shaft passes kettle body top cap (4) and on this output shaft rigid coupling stirring shaft body (6), stirring shaft body (6) lower part rigid coupling stirring frame (7), set up spiral scraping subassembly on stirring shaft body (6).

2. A chemical reaction apparatus for facilitating cleaning as defined in claim 1, wherein: the spiral scraping assembly comprises a fixed plate (81), a scale scraping plate (82) and a spiral guide strip (83), wherein a reciprocating thread groove is engraved on a stirring shaft body (6), the reciprocating thread on the stirring shaft body (6) is connected with the fixed plate (81) in a threaded manner, the scale scraping plate (82) is fixedly connected on the fixed plate (81), the scale scraping plate (82) is in contact with the inner side wall of the reaction kettle body (2), the spiral guide strip (83) is fixedly connected on the inner side wall of the reaction kettle body (2), and the scale scraping plate (82) is in sliding connection with the spiral guide strip (83).

3. A chemical reaction apparatus for facilitating cleaning as defined in claim 2, wherein: the stirring shaft body (6) is provided with a bottom wall scraping assembly at the lower part; the bottom wall scraping assembly comprises a cross fixing frame (91), a first fixing collar (92), inclined scraping plates (93) and a second fixing collar (94), wherein the lower portion of a stirring shaft body (6) is fixedly connected with the cross fixing frame (91), the cross fixing frame (91) is fixedly connected with the first fixing collar (92), a plurality of inclined scraping plates (93) are fixedly connected with the first fixing collar (92), the inclined scraping plates (93) are in contact with the inner side wall of a reaction kettle body (2), and the end portions of the inclined scraping plates (93) are fixedly connected with the second fixing collar (94) jointly.

4. A chemical reaction apparatus for facilitating cleaning as defined in claim 3, wherein: the reaction kettle also comprises a cleaning solution supplementing component, and the outer side wall of the reaction kettle body (2) is provided with the cleaning solution supplementing component; the cleaning fluid supplementing assembly comprises a liquid storage frame body (101), a communicating pipeline (102), an auxiliary feeding pipe (103) and a valve (104), wherein the liquid storage frame body (101) is fixedly connected to the outer side wall of the reaction kettle body (2), one end of the communicating pipeline (102) is communicated with the liquid storage frame body (101), the other end of the communicating pipeline (102) is communicated with the reaction kettle body (2), the valve (104) is arranged on the communicating pipeline (102), and the auxiliary feeding pipe (103) is communicated with the liquid storage frame body (101).

5. A chemical reaction apparatus for facilitating cleaning as defined in claim 4, wherein: the device also comprises a collecting mechanism, and the collecting mechanism is arranged at the lower part of the reaction kettle body (2); the collecting mechanism comprises a first mounting collar (111), a first driving motor (112), a second mounting collar (113) and a collecting assembly, wherein the lower part of the reaction kettle body (2) is fixedly connected with the first mounting collar (111), the first driving motor (112) is fixedly connected with the first mounting collar (111), the second mounting collar (113) is fixedly connected with an output shaft of the first driving motor (112), the second mounting collar (113) can be overlapped with a discharge hole of the reaction kettle body (2) along with rotation of the first driving motor (112), and the collecting assembly is arranged on the second mounting collar (113).

6. A chemical reaction apparatus for facilitating cleaning as defined in claim 5, wherein: the collecting assembly comprises a collecting frame (121), a liquid pump (122), a guide pipe (123) and a filter screen (124), wherein the bottom of the second fixing sleeve ring (94) is fixedly connected with the collecting frame (121), the liquid pump (122) is installed at the bottom of the collecting frame (121), a water inlet of the liquid pump (122) is communicated with the collecting frame (121), a water outlet of the liquid pump (122) is communicated with one end of the guide pipe (123), the other end of the guide pipe (123) is communicated with the liquid storage frame body (101), and the filter screen (124) is fixedly connected on the collecting frame (121).

7. A chemical reaction apparatus for facilitating cleaning as defined in claim 6, wherein: the device also comprises a pushing component, and the pushing component is arranged on the second fixed lantern ring (94); the pushing assembly comprises a first mounting frame (131), a second driving motor (132) and a rotating concave wheel (133), wherein the bottom of a second fixing sleeve ring (94) is fixedly connected with the first mounting frame (131), the second driving motor (132) is mounted on the first mounting frame (131), the rotating concave wheel (133) is symmetrically connected to the first mounting frame (131) in a rotating mode, and an output shaft of the second driving motor (132) is fixedly connected with one rotating concave wheel (133).

8. A chemical reaction apparatus for facilitating cleaning as defined in claim 7, wherein: the device also comprises a knocking component, wherein the knocking component is arranged on the first mounting frame (131); the knocking assembly comprises a push rod (141), a third driving motor (142), a second mounting frame (143), a swinging block (144), a knocking ball body (145), a contact frame (146), a protruding lantern ring (147), a limiting clamping block (148) and a spring (149), wherein the third driving motor (142) is mounted on the first mounting frame (131), the second mounting frame (143) is fixedly connected to an output shaft of the third driving motor (142), the swinging block (144) is hinged to the second mounting frame (143), a torsion spring is arranged at the hinging position between the swinging block (144) and the second mounting frame (143), the knocking ball body (145) is fixedly connected to the swinging block (144), a push rod (141) is slidingly arranged between rotating concave wheels (133) on two sides, a cavity is formed in the bottom of the stirring shaft body (6), the limiting clamping block (148) is symmetrically and slidingly connected to the stirring shaft body (6), the protruding lantern ring (147) is fixedly connected to the push rod (141), the push rod (141) slides into the cavity and is clamped between the limiting clamping blocks (148) through the protruding lantern ring (147), the lower part of the push rod (141) is fixedly connected to the contact frame (146), and the contact ball body (145).