CN114405365B - A kind of starch adhesive production process and its special mixing equipment - Google Patents

Abstract

The invention relates to the technical field of starch adhesive production, and discloses a starch adhesive production process and its special mixing equipment, including a master control box, a main material mixing preparation kettle, an auxiliary material mixing preparation kettle and a total mixing kettle. The mixing preparation kettle and the auxiliary material mixing preparation kettle are equipped with a first solenoid valve, an automatic proportioning feeding mechanism and a floating stirring mechanism. The mixing mechanism and a viscosity adjustment mechanism are installed on the mixing kettle. , auxiliary material mixing preparation kettle and total mixing kettle are equipped with a water bath heating mechanism; the present invention controls the whole by setting an automatic proportioning mechanism, and the main control box controls the whole, and the main material mixing preparation kettle and the auxiliary material mixing preparation kettle use an automatic proportioning feeding mechanism Complete the exact proportion of each raw material, and then use the floating stirring mechanism to speed up the stirring efficiency, separately mix and prepare the main material and auxiliary materials, and then use the total mixing tank to complete the overall mixing, effectively improve the stirring, so as to improve production efficiency.

Description

A kind of starch adhesive production process and its special mixing equipment

technical field

The invention relates to the technical field of starch adhesive production, in particular to a starch adhesive production process and special mixing equipment.

Background technique

Starch adhesive is an adhesive made of starch gelatinization or starch derivatives, which can connect the same kind or two or more homogeneous or heterogeneous parts (or materials) together, and has sufficient It is a kind of substance with high strength, and corresponding reinforcing agent can be added in the production process to enhance a certain performance of the adhesive.

In the prior art, when producing starch adhesives, the raw materials are put into the mixing equipment for mixing, but because most of the raw materials are powdery, they will float on the water surface after being put in, and it is difficult to quickly dissolve into the water, and the ratio of the raw materials is not accurate enough. , reducing production efficiency.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a starch adhesive production process and its special mixing equipment, which solves the problem that the raw materials are mostly powdery and will float on the water surface after being put in, making it difficult to quickly dissolve into the water, and the raw materials The proportioning ratio is not accurate enough, which reduces the problem of production efficiency.

(2) Technical solutions

In order to achieve the above object, the present invention provides the following technical solutions: a special mixing equipment for the production of starch adhesives, including a master control box, a main material mixing preparation kettle, an auxiliary material mixing preparation kettle and a total mixing kettle, the main material mixing preparation kettle And the auxiliary material mixing preparation kettle is equipped with a first electromagnetic valve, an automatic proportioning feeding mechanism and a floating stirring mechanism. The mixing mechanism and a viscosity adjustment mechanism are installed on the mixing kettle. Both the preparation kettle and the mixing kettle are equipped with water bath heating mechanisms;

The automatic proportioning and feeding mechanism includes a plurality of support frames, weighing devices are installed on the top of the plurality of support frames, a raw material barrel is arranged on the top of the weighing device, and a second electromagnetic valve is installed at the bottom of the raw material barrel. The bottom of the second solenoid valve is provided with a feeding pipe;

The floating stirring mechanism includes a guide frame, the bottom end of the guide frame is fixedly connected with a suspension seat, the inside of the guide frame is rotatably connected with a storage tank, the top of the storage tank is fixedly connected with a driven gear ring, the storage tank The bottom end of the material barrel is connected with a first telescopic tube through a rotary joint, and the first telescopic tube is connected with the first electromagnetic valve. Both the main material mixing preparation kettle and the auxiliary material mixing preparation kettle are fixedly connected with mounting brackets inside. The bottom of the mounting frame is rotatably connected with a plurality of driving gears, the bottom of the mounting frame is fixedly connected with a stirring stand, the inside of the stirring stand is rotatably connected with a stirring shaft, the top of the stirring shaft is fixedly connected with a stirring motor, the stirring shaft and the active The gears are fixedly connected with transmission sprockets, and a transmission chain is sleeved between the plurality of transmission sprockets. The bottom end of the stirring shaft is fixedly connected with the bottom stirring piece, and the top and middle part of the stirring shaft are fixedly connected. There is an active bevel gear, the middle part and the top of the stirring stand are rotatably connected with horizontal rotating shafts, and one end of the multiple horizontal rotating shafts inside the stirring stand is fixedly connected with a driven bevel gear. The surfaces of the horizontal rotating shafts are all fixedly connected with water inlet pressure spoons, and the water inlet pressure spoons are provided with inner concave cavities, and the surfaces of the multiple horizontal rotating shafts in the middle are all fixedly connected with middle layer stirring plates.

Preferably, the main material mixing preparation kettle, the auxiliary material mixing preparation kettle and the total mixing kettle are connected through pipelines, and the number of the first electromagnetic valves is set to two, and the two first electromagnetic valves are installed in the pipelines .

Preferably, the guide frame is slidingly connected with the main material mixing preparation kettle and the auxiliary material mixing preparation kettle, and there is a cavity between the storage tank and the inner wall of the main material mixing preparation kettle and the auxiliary material mixing preparation kettle.

Preferably, a plurality of the driving gears are arranged outside the top of the driven gear ring, and the driving gears are meshed with the driven gear ring.

Preferably, the water bath heating mechanism includes a water inlet pipe, a water outlet pipe, a temperature sensor and an electric heater, a third electromagnetic valve is installed on the water inlet pipe and the water outlet pipe, and an inner cylinder is arranged inside the mixing tank, so A water bath cavity is provided before the inner cylinder and the total mixing tank.

Preferably, a programmable PLC is installed inside the master control box.

Preferably, the blending mechanism includes a blending rack and a blending motor, and the viscosity adjustment mechanism includes a plurality of shells, and liquid storage tanks are fixedly connected inside the multiple shells, and one end of the liquid storage tank is connected to a pumping A one-way valve is installed inside the liquid suction pipe, a second telescopic tube is fixedly connected to the end of the liquid suction pipe, a drip tube is connected to the bottom of the second telescopic pipe, and the end of the second telescopic pipe A piston is fixedly connected, the end of the piston is hinged with a rocker, the end of the rocker is hinged with a rotating disk, the end of the rotating disk is fixedly connected with a pumping motor, and the bottom of the mixing tank is provided with a discharge pipe , the discharge pipe is provided with a fourth solenoid valve.

Preferably, the viscosity adjustment mechanism further includes an electric slide rail, a detection box is installed on the electric slide rail, and a viscometer is installed on the detection box.

A kind of starch adhesive production technology, comprises the following steps:

Step 1, preparing main ingredients, putting starch, water and hydrogen peroxide into the mixing equipment for mixing;

Step 2, preparing auxiliary materials, putting crosslinking agent, water, curing agent, flame retardant, anti-aging agent into the mixing equipment for mixing;

Step 3, mixing, releasing the lower layer of the main material liquid after mixing and standing still, and slowly releasing the auxiliary materials at the same time;

Step 4. Viscosity detection and adjustment, slowly drop in the gelatinizer to complete the gelatinization, then take out the sample for viscosity detection, and then adjust the viscosity according to the detection results;

Step five, unloading and packaging storage.

Preferably, the mixing temperatures of Step 1 and Step 2 are both set at 60°C-70°C, and the temperatures of Step 3 and Step 4 are set at 70°C-80°C.

(3) Beneficial effects

The invention provides a starch adhesive production process and its special mixing equipment, which have the following beneficial effects:

(1) In the present invention, by setting an automatic proportioning mechanism, the master control box controls the whole. The main material mixing preparation kettle and the auxiliary material mixing preparation kettle use the automatic proportioning feeding mechanism to complete the accurate proportioning of each raw material, and then through the floating stirring mechanism Accelerate the stirring efficiency, separately mix and prepare the main materials and auxiliary materials, and then use the total mixing tank to complete the overall mixing, effectively improve the stirring, so as to improve the production efficiency.

(2) The present invention can improve the uniformity of heating by providing a water bath heating mechanism, and at the same time can keep the temperature stably in an appropriate range, thereby improving the effect of mixing preparation.

(3) In the present invention, by setting a viscosity adjustment mechanism, the pumping motor drives the rotating disc to rotate, the rotating disc drives the piston to move, the piston moves to drive the second telescopic tube to expand and contract, and the gelatinizer or diluent in the liquid storage tank is drawn out, It is dripped out from the drip tube, and the viscosity is detected by a viscometer, and then the process is controlled by a programmable PLC to complete the viscosity adjustment and improve the mixing effect.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the schematic diagram of the structure of the main material mixing preparation kettle of the present invention;

Fig. 3 is the structure schematic diagram of stirring stand of the present invention;

Figure 4 is an enlarged view of the structure at A in Figure 3 of the present invention;

Fig. 5 is the structural representation of total mixing tank of the present invention;

Fig. 6 is a schematic diagram of the connection structure between the pumping motor and the piston of the present invention;

Fig. 7 is a process flow diagram of the present invention.

In the figure: 1. The main material mixing preparation kettle; 2. The auxiliary material mixing preparation kettle; 3. The total mixing kettle; 4. The automatic ratio feeding mechanism; 5. The floating stirring mechanism; 6. The total mixing mechanism; 7. The viscosity adjustment mechanism; 8. Water bath heating mechanism; 9. Support frame; 10. Weighing device; 11. Raw material barrel; 12. Second solenoid valve; 13. Feeding pipe; 14. Guide frame; 15. Suspension seat; 17. Driven gear ring; 18. Mounting frame; 19. Driving gear; 20. Stirring stand; 21. Stirring shaft; 22. Stirring motor; 23. Drive sprocket; 24. Drive chain; 25. Drive bevel gear; 26. Driven bevel gear; 27. Inner concave cavity; 28. Horizontal shaft; 29. Water bath cavity; 30. Water pressure spoon; 31. Middle stirring plate; 32. Outlet pipe; 33. Temperature sensor; 34. Electric heating Device; 35, mixing rack; 36, shell; 37, drip tube; 38, piston; 39, rocker; 40, rotating disc; 41, pumping motor; 42, second telescopic tube; 43, discharge tube; 44. Electric slide rail; 45. Detection box.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1-7, the present invention provides a technical solution: a special mixing equipment for the production of starch adhesives, including a master control box, a main material mixing preparation kettle 1, an auxiliary material mixing preparation kettle 2 and a final mixing kettle 3, The main material mixing preparation kettle 1 and the auxiliary material mixing preparation kettle 2 are equipped with a first solenoid valve, an automatic proportioning feeding mechanism 4 and a floating stirring mechanism 5, and the mixing kettle 3 is equipped with a mixing mechanism 6 and a viscosity The adjustment mechanism 7, the main material mixing preparation kettle 1, the auxiliary material mixing preparation kettle 2 and the total mixing kettle 3 are all provided with a water bath heating mechanism 8, which can control the whole through the master control box, the main material mixing preparation kettle 1 and the auxiliary material The mixing preparation kettle 2 uses the automatic proportioning feeding mechanism 4 to complete the accurate proportioning of each raw material, and then uses the floating stirring mechanism 5 to speed up the stirring efficiency, separately mixes and prepares the main materials and auxiliary materials, and then uses the total mixing kettle 3 to complete the overall mixing , and use the water bath heating mechanism 8 to ensure stability during the mixing preparation process, and then complete the adjustment of the viscosity through the viscosity adjustment mechanism 7, which effectively improves the production efficiency;

The automatic proportioning feeding mechanism 4 includes a plurality of support frames 9, and a weighing device 10 is installed on the top of a plurality of the supporting frames 9. The model of the weighing device 10 is PTS124-133G, and the top of the weighing device 10 is provided with There is a raw material barrel 11, a second electromagnetic valve 12 is installed at the bottom of the raw material barrel 11, and a feeding pipe 13 is arranged at the bottom of the second electromagnetic valve 12, and the weighing device 10 can be used to improve the proportioning accuracy of raw materials;

The floating stirring mechanism 5 includes a guide frame 14, and the bottom end of the guide frame 14 is fixedly connected with a suspension seat 15, so that the suspension seat 15 can float upward after the water in the water bath enters, and the driven gear ring 17 and the driving gear 19, the guide frame 14 is rotatably connected with a storage tube 16, the top end of the storage tube 16 is fixedly connected with a driven gear ring 17, and the bottom end of the storage tube 16 is connected with a first telescopic ring through a rotary joint. The first telescopic tube is connected with the first solenoid valve, so that the material storage cylinder 16 can rotate after floating, and the inside of the main material mixing preparation kettle 1 and the auxiliary material mixing preparation kettle 2 are fixedly connected with a mounting frame 18 , the bottom of the mounting frame 18 is rotatably connected with a plurality of driving gears 19, which can drive the driven gear ring 17 to rotate through the driving gear 19, and the driven gear ring 17 rotates to drive the storage cylinder 16 to rotate in the opposite direction, so as to improve the stirring efficiency. The bottom of the frame 18 is fixedly connected with a stirring stand 20, the inside of the stirring stand 20 is rotatably connected with a stirring shaft 21, the top of the stirring shaft 21 is fixedly connected with a stirring motor 22, and the stirring shaft 21 and the driving gear 19 are all fixed A transmission sprocket 23 is connected, and a transmission chain 24 is sleeved between a plurality of the transmission sprockets 23. The bottom end of the stirring shaft 21 is fixedly connected with a bottom stirring piece, which can stir the raw materials at the bottom. The top and the middle part of the rotating shaft 21 are fixedly connected with a driving bevel gear 25, and the middle part and the top of the stirring stand 20 are rotatably connected with a horizontal rotating shaft 28, and a plurality of the horizontal rotating shafts 28 are located at one end of the stirring stand 20. All are fixedly connected with driven bevel gears 26, and the surfaces of a plurality of said horizontal rotating shafts 28 at the top are all fixedly connected with water-inlet pressure scoops 30, said water-inlet pressure scoops 30 are provided with inner concave cavities 27, which can float on The raw materials on the water surface are pressed into the water to speed up the dissolution efficiency, and the surfaces of the plurality of transverse rotating shafts 28 in the middle are all fixedly connected with middle layer stirring blades 31, which can stir the raw materials in the middle layer.

Further, the main material mixing preparation kettle 1, the auxiliary material mixing preparation kettle 2 and the total mixing kettle 3 are connected through pipelines, and the number of the first solenoid valves is set to two, and the two first solenoid valves are installed In the pipeline, the main and auxiliary materials can be conveniently controlled.

Further, the guide frame 14 is slidingly connected with the main material mixing preparation kettle 1 and the auxiliary material mixing preparation kettle 2, and there is a space between the storage tank 16 and the main material mixing preparation kettle 1 and the auxiliary material mixing preparation kettle 2 inner walls. chamber, so that the water in the water bath can enter the main material mixing preparation kettle 1 and the auxiliary material mixing preparation kettle 2.

Further, a plurality of the driving gears 19 are arranged on the top outside of the driven gear ring 17, and the driving gears 19 are meshed with the driven gear ring 17, so that the driving gear 19 can drive the driven gear ring 17 in the opposite direction turn.

Further, the water bath heating mechanism 8 includes a water inlet pipe, a water outlet pipe 32, a temperature sensor 33 and an electric heater 34. The model of the temperature sensor 33 is set as DS18B20, and a third Electromagnetic valve, the inside of the total mixing kettle 3 is provided with an inner cylinder, and a water bath cavity 29 is provided before the inner cylinder and the total mixing kettle 3, and the temperature sensor 33 can be used to control the water temperature of the water bath in a suitable range, thereby improving the mixing and preparation process. Effect.

Further, a programmable PLC is installed inside the master control box, which can control the whole and improve the degree of automation.

Further, the blending mechanism 6 includes a blending frame 35 and a blending motor, and the viscosity adjustment mechanism 7 includes a plurality of housings 36, and a plurality of housings 36 are fixedly connected with liquid storage tanks inside, and the liquid storage tanks One end is connected with a suction pipe, and a one-way valve is installed inside the liquid suction pipe. The end of the liquid suction pipe is fixedly connected with a second telescopic pipe 42, and the bottom of the second telescopic pipe 42 is connected with a drip pipe 37. The end of the second telescopic tube 42 is fixedly connected with a piston 38, the end of the piston 38 is hinged with a rocker 39, the end of the rocker 39 is hinged with a rotating disk 40, and the end of the rotating disk 40 is fixedly connected with a Pumping motor 41, the bottom end of the mixing tank 3 is provided with a discharge pipe 43, and the discharge pipe 43 is provided with a fourth electromagnetic valve, which can drive the rotating disk 40 to rotate through the liquid pumping motor 41, and the rotating disk 40 rotates to drive the piston 38 moves, and the movement of the piston 38 drives the second telescopic tube 42 to expand and contract, and the gelatinizer or diluent in the liquid storage tank is extracted, and dripped out by the dripping tube 37 to complete the viscosity adjustment.

Further, the viscosity adjustment mechanism 7 also includes an electric slide rail 44, a detection box 45 is installed on the electric slide rail 44, a viscometer is installed on the detection box 45, and the viscometer in the detection box 45 can be checked by the viscometer. The sample is tested for viscosity, and the detected data is transmitted to the programmable PLC for comparison.

A kind of starch adhesive production technology, comprises the following steps:

Step 1, preparing main ingredients, putting starch, water and hydrogen peroxide into the mixing equipment for mixing;

Step 2, preparing auxiliary materials, putting crosslinking agent, water, curing agent, flame retardant, anti-aging agent into the mixing equipment for mixing;

Step 3, mixing, releasing the lower layer of the main material liquid after mixing and standing still, and slowly releasing the auxiliary materials at the same time;

Step 4. Viscosity detection and adjustment, slowly drop in the gelatinizer to complete the gelatinization, then take out the sample for viscosity detection, and then adjust the viscosity according to the detection results;

Step five, unloading and packaging storage.

Further, the mixing temperature of Step 1 and Step 2 is set at 60°C-70°C, and the temperature of Step 3 and Step 4 is set at 70°C-80°C.

In summary, the working process of the present invention: when the present invention is actually used, pass into the water bath water in the main material mixing preparation kettle 1, the auxiliary material mixing preparation kettle 2 and the total mixing kettle 3, and then the electric heater 34 controls the water temperature Within the required range, open the second solenoid valve 12 to put the raw materials in, and use the weighing device 10 to carry out accurate proportioning. After the water in the water bath is passed into, the suspension seat 15 can float upwards, and the driven gear ring 17 and the active The gears 19 are meshed, the stirring motor 22 drives the stirring shaft 21 to rotate, the stirring shaft 21 rotates to drive the bottom stirring plate to stir the bottom raw materials, and simultaneously drives the driving bevel gear 25 to rotate, and the driving bevel gear 25 rotates to drive the driven bevel gear 26 to rotate. The rotation of the movable bevel gear 26 drives the horizontal shaft 28 to rotate, and the rotation of the horizontal shaft 28 drives the water pressure spoon 30 and the middle layer stirring plate 31 to rotate, and the raw materials floating on the water surface are pressed into the water, and the raw materials in the middle layer are stirred, and the stirring motor 22 also drives the driving gear 19 to rotate through the transmission sprocket 23 and the transmission chain 24, and the rotation of the driving gear 19 drives the driven gear ring 17 to rotate, and the driven gear ring 17 drives the storage cylinder 16 to rotate in the opposite direction, so as to improve the stirring efficiency and enter After the total mixing kettle 3 is placed, the pumping motor 41 drives the rotating disk 40 to rotate, the rotating disk 40 rotates to drive the piston 38 to move, and the movement of the piston 38 drives the second telescopic tube 42 to expand and contract, and the gelatinizer or diluent in the liquid storage tank is drawn out , and drip out from the dripping tube 37, while using a viscometer for viscosity detection, and then using a programmable PLC for process control to complete viscosity adjustment.

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

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. The special mixing equipment for producing the starch adhesive is characterized in that: the device comprises a master control box, a main material mixing preparation kettle (1), an auxiliary material mixing preparation kettle (2) and a master mixing kettle (3), wherein the main material mixing preparation kettle (1) and the auxiliary material mixing preparation kettle (2) are respectively provided with a first electromagnetic valve, an automatic proportioning feeding mechanism (4) and a floating stirring mechanism (5), the master mixing kettle (3) is provided with a master mixing mechanism (6) and a viscosity adjusting mechanism (7), and the main material mixing preparation kettle (1), the auxiliary material mixing preparation kettle (2) and the master mixing kettle (3) are respectively provided with a water bath heating mechanism (8);

the automatic proportioning feeding mechanism (4) comprises a plurality of supporting frames (9), weighing devices (10) are mounted at the tops of the supporting frames (9), a raw material barrel (11) is arranged at the top of each weighing device (10), a second electromagnetic valve (12) is mounted at the bottom of each raw material barrel (11), and a feeding pipe (13) is arranged at the bottom of each second electromagnetic valve (12);

the floating stirring mechanism (5) comprises a guide frame (14), the bottom end of the guide frame (14) is fixedly connected with a suspension seat (15), the inside of the guide frame (14) is rotatably connected with a storage cylinder (16), the top end of the storage cylinder (16) is fixedly connected with a driven gear ring (17), the bottom end of the storage cylinder (16) is connected with a first telescopic pipe through a rotary joint, the first telescopic pipe is connected with a first electromagnetic valve, the insides of the main material mixing preparation kettle (1) and the auxiliary material mixing preparation kettle (2) are both fixedly connected with a mounting frame (18), the bottom of the mounting frame (18) is rotatably connected with a plurality of driving gears (19), the bottom of the mounting frame (18) is fixedly connected with a stirring vertical frame (20), the stirring vertical frame (20) is internally and rotatably connected with a stirring rotating shaft (21), the top end of the stirring rotating shaft (21) is fixedly connected with a stirring motor (22), the stirring rotating shaft (21) and the driving gear (19) are both fixedly connected with transmission chain wheels (23), a plurality of transmission chain wheels (23) are sleeved with transmission chains (24), the bottom end of the stirring rotating shaft (21) is fixedly connected with a bottom stirring sheet, the top and the middle of the stirring rotating shaft (21) are both fixedly connected with driving bevel gears (25), the middle and the top of the stirring vertical frame (20) are both rotatably connected with transverse rotating shafts (28), one end, positioned inside the stirring vertical frame (20), of each of the transverse rotating shafts (28) is fixedly connected with a driven bevel gear (26), the surface of each of the transverse rotating shafts (28) positioned at the top is fixedly connected with a water inlet pressure spoon (30), an inner concave cavity (27) is formed in each water inlet pressure spoon (30), and the surface of each of the transverse rotating shafts (28) positioned in the middle is fixedly connected with a middle stirring sheet (31);

the process for producing the starch adhesive by using the special mixing equipment comprises the following steps:

step one, preparing a main material, and putting starch, water and hydrogen peroxide into mixing equipment for mixing;

step two, preparing auxiliary materials, namely putting the cross-linking agent, water, the curing agent, the flame retardant and the anti-aging agent into mixing equipment for mixing;

step three, mixing, namely releasing the mixed and stood main material liquid lower layer and slowly releasing the auxiliary material;

step four, detecting and adjusting the viscosity, slowly dripping a gelatinizing agent to complete gelatinization, then extracting a sample for viscosity detection, and adjusting the viscosity according to a detection result;

and step five, unloading, packaging and storing.

2. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: the main material mixing preparation kettle (1), the auxiliary material mixing preparation kettle (2) and the total mixing kettle (3) are communicated through a pipeline, the number of the first electromagnetic valves is two, and the first electromagnetic valves are installed in the pipeline.

3. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: the guide frame (14) is connected with the main material mixing preparation kettle (1) and the auxiliary material mixing preparation kettle (2) in a sliding mode, and a cavity is reserved between the inner walls of the storage barrel (16) and the main material mixing preparation kettle (1) and the auxiliary material mixing preparation kettle (2).

4. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: the driving gears (19) are arranged on the outer side of the top of the driven gear ring (17), and the driving gears (19) are meshed with the driven gear ring (17).

5. The special mixing device for producing the starch adhesive as claimed in claim 1, wherein the special mixing device comprises: water bath heating mechanism (8) include inlet tube, outlet pipe (32), temperature sensor (33) and electric heater (34), all install the third solenoid valve on inlet tube and outlet pipe (32), always mix cauldron (3) inside and be equipped with the inner tube, the inner tube is equipped with water bath chamber (29) before cauldron (3) is mixed with always.

6. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: and a programmable PLC is installed in the master control box.

7. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: mechanism (6) is mixed including always mixing frame (35) and the motor is mixed to the total, viscosity adjustment mechanism (7) are including a plurality of shells (36), and are a plurality of shell (36) inside fixedly connected with liquid reserve tank, liquid reserve tank one end is connected with the liquid suction pipe, liquid suction pipe internally mounted has the check valve, the flexible pipe (42) of liquid suction pipe tip fixedly connected with second, the flexible pipe (42) bottom of second is connected with instils into pipe (37), the flexible pipe (42) tip fixedly connected with piston (38) of second, piston (38) tip articulates there is rocker (39), rocker (39) tip articulates there is rolling disc (40), rolling disc (40) tip fixedly connected with liquid suction motor (41), the total cauldron (3) bottom of mixing is equipped with discharge pipe (43), be equipped with the fourth solenoid valve on discharge pipe (43).

8. The special mixing device for the production of the starch adhesives as claimed in claim 7, wherein: viscosity adjustment mechanism (7) still include electronic slide rail (44), install detection case (45) on electronic slide rail (44), install the viscometer on detection case (45).

9. The special mixing device for the production of the starch adhesives as claimed in claim 1, wherein: the mixing temperature of the first step and the second step is set to be 60-70 ℃, and the temperature of the third step and the fourth step is set to be 70-80 ℃.

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