Formaldehyde-free plate glue preparation, mixing and purification integrated device

Abstract

An integrated device for preparing, mixing and purifying formaldehyde-free plate glue comprises a tank body, an inner cavity of the tank body is divided into a mixing and stirring cavity and a discharging cavity by a filter screen, the mixing and stirring cavity and the discharging cavity are located on the upper side and the lower side respectively, a stirring structure is arranged in the mixing and stirring cavity, a raw material inlet and an auxiliary material inlet are formed in the top of the mixing and stirring cavity, and the filter screen is arranged at the bottom of the mixing and stirring cavity. A high-pressure air pipe is arranged at the top of the mixing and stirring cavity; a discharge port is formed in the lower end of the discharge cavity. When the formaldehyde-free plate glue preparation, mixing and purification integrated device is used, raw materials can be heated, mixed and stirred by the device firstly, then a product is filtered and purified, and in the filtering and purification process, the filter screen can be continuously cleaned through stirring, so that normal filtering is facilitated; according to the scheme, the integration of mixing, stirring and purifying of the plate glue is realized, the production efficiency can be effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to an integrated device for preparing, mixing and purifying formaldehyde-free sheet glue, and belongs to the technical field of sheet glue production equipment. Background Art

[0002] Traditional board glue mixing equipment, as shown in the Chinese invention patent application "Application publication number: CN115155489A; Application publication date: October 11, 2022; Name: A reaction equipment for soybean adhesive production", only has mixing and stirring functions and temperature control functions, but does not have purification functions. It has the advantages of single function and low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to address the above-mentioned technical defects of traditional board glue mixing equipment and provide an integrated device for preparing, mixing and purifying formaldehyde-free board glue. The device has mixing, stirring, filtering and purification functions, is rich in functions, and can effectively improve the production efficiency of board glue.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] The invention discloses an integrated device for preparing, mixing and purifying formaldehyde-free sheet glue, comprising a tank body, the inner cavity of the tank body being divided by a filter into a mixing and stirring chamber and a discharge chamber respectively located at the upper and lower sides, a stirring structure being arranged in the mixing and stirring chamber, a raw material inlet, an auxiliary material inlet and a high-pressure air pipe being arranged at the top of the mixing and stirring chamber, the filter being located at the bottom of the mixing and stirring chamber, and a discharge port being arranged at the lower end of the discharge chamber.

[0006] By adopting the above technical scheme, an integrated device for preparing, mixing and purifying formaldehyde-free sheet glue is provided. When in use, the device can first heat, mix and stir the raw materials, and then filter and purify the product. During the filtering and purification process, the filter can continue to be cleaned by stirring to facilitate normal filtration. This scheme realizes the integration of mixing, stirring and purification of sheet glue, which can effectively improve the production efficiency of sheet glue and reduce production costs.

[0007] The present invention is further configured as follows: a scraping structure that fits the filter screen is provided at the lower end of the stirring structure.

[0008] By adopting the above technical solution, a scraping structure for scraping the filter plate is provided at the lower end of the stirring structure. This design can achieve sufficient stirring of the material during mixing and stirring, and can push away the particles accumulated on the filter plate during high-pressure filtration, so that the plate glue that meets the requirements can pass through the filter plate smoothly, which can effectively improve the filtration and purification efficiency.

[0009] The present invention is further configured as follows: the filter screen is fixed to the inner cavity of the tank body through a retaining ring, and a blocking support mechanism for the filter screen is provided on the lower side of the filter screen.

[0010] By adopting the above technical solution, a blocking support mechanism is provided at the lower side of the filter screen, and the blocking support mechanism can effectively block and support the filter plate during the mixing and stirring process, thereby effectively ensuring the normal operation of the mixing and stirring and increasing the service life of the filter screen.

[0011] The present invention is further configured as follows: the blocking support mechanism includes a plurality of ring members which are socketed with each other and a middle blocking pin, the lower ends of the ring members and the middle blocking member are provided with outer flanges, the upper edges of the inner holes of the ring members and the retaining ring are provided with inner flanges, the outermost ring member is movably inserted in the inner hole of the retaining ring from bottom to top, the inner ring member of the two adjacent ring members is movably inserted in the inner hole of the outer ring member from bottom to top, the middle blocking pin is movably inserted in the inner hole of the innermost ring member from bottom to top, the diameter of the outer flange of the ring member gradually decreases from outside to inside, the outer flange of the middle blocking pin is smaller than the outer flanges of all the ring members, and a vertical pushing member is provided at the lower end of the blocking pin, which is a vertical opening and closing cylinder.

[0012] By adopting the above technical scheme, a sealing support mechanism mainly composed of multiple ring parts is provided. The sealing support mechanism not only has the advantages of good sealing effect and large fluid channel, but also has a compact structure and can achieve the advantages of sealing and supporting a variety of special-shaped surface filters (the upper surface of the assembled ring parts can be either a plane or a concave or convex curved surface, and since the ring parts are vertically assembled, they occupy less lateral space), and has outstanding practicality.

[0013] The present invention is further configured as follows: the inner flange of the ring and the inner flange of the retaining ring can be sealed and fitted with the upper end surface of the inner hole of the corresponding ring, and the rod body of the ring and the inner hole of the outer adjacent ring are slidingly fitted or clearance-fitted.

[0014] By adopting the above technical solution, the sealing structure is designed on the upper side of the ring, which can further improve the sealing effect on the filter screen; the rod body of the ring and the inner hole of the outer adjacent ring are set in a matching relationship, which can effectively ensure the guiding match between the rings.

[0015] The present invention is further configured as follows: a guide groove is provided between the rod body of the ring and the inner hole of the outer adjacent ring.

[0016] By adopting the above technical solution, a guide groove is provided between the rod body and the inner hole wall of adjacent rings, which can effectively increase the channel through which the colloid flows.

[0017] The present invention is further configured as follows: a compression spring is provided between the outer flange of the ring and the lower end surface of the inner hole of the outer adjacent ring.

[0018] By adopting the above technical solution, after the telescopic rod of the opening and closing cylinder is moved downward, channels for the circulation of colloid can be provided on the inner and outer sides of each ring. In this way, multi-point circulation of colloid can be achieved, and the accumulation of colloid above the ring can be effectively avoided.

[0019] The present invention is further configured as follows: a pressure relief valve is provided on the top wall of the mixing and stirring chamber.

[0020] By adopting the above technical solution, when the pressure in the mixing chamber is too high, the pressure relief valve can automatically exhaust the air to avoid accidents such as the chamber bursting due to excessive pressure in the mixing chamber.

[0021] The present invention is further configured such that the stirring structure is driven by a motor located outside the mixing and stirring chamber.

[0022] By adopting the above technical solution, the specific driving method of the stirring structure is limited.

[0023] The present invention is further configured as follows: the integrated purification device is further provided with a distillation device and an extraction device as required.

[0024] By adopting the above technical solution and equipping a distillation device and an extraction device as needed, the sheet glue produced from raw materials of different components can be further purified.

[0025] The main beneficial effects of the present invention are:

[0026] 1. The present invention provides an integrated device for preparing, mixing and purifying formaldehyde-free sheet glue. When in use, the device can first heat, mix and stir the raw materials, and then filter and purify the product. During the filtering and purification process, the filter can continue to be cleaned by stirring to facilitate normal filtration. This solution realizes the integration of mixing, stirring and purification of sheet glue, which can effectively improve production efficiency and reduce production costs.

[0027] 2. The present invention sets a scraping structure for scraping the filter plate at the lower end of the stirring structure. This design can achieve sufficient stirring of the material during mixing and shifting, and can push away the particles accumulated on the filter plate during high-pressure filtration, so that the fixed rubber can pass through the filter plate smoothly, which can effectively improve the filtration and purification efficiency.

[0028] 3. The present invention provides a blocking support mechanism at the lower side of the filter screen, which can effectively block and support the filter plate during the mixing and stirring process, effectively ensuring the normal operation of the mixing and stirring and increasing the service life of the filter screen.

[0029] 4. The present invention provides a blocking support mechanism which is mainly composed of a plurality of ring parts. The blocking support mechanism not only has the advantages of good blocking effect and large fluid channel, but also has a compact structure, and can realize the blocking and support of a variety of special-shaped surface filters (the upper surface of the assembled ring parts can be either a plane or a concave or convex curved surface, and since the ring parts are assembled vertically, they occupy less lateral space), and has outstanding practicality.

[0030] 5. The present invention provides a compression spring between the outer flange of the ring and the lower end surface of the inner hole of the outer adjacent ring. After the telescopic rod of the opening and closing cylinder is moved downward, channels for the circulation of colloid can be provided on the inner and outer sides of each ring. In this way, multi-point circulation of the colloid can be achieved, and the accumulation of colloid above the ring can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of the appearance of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the internal blocking support mechanism of the present invention in a closed state;

[0034] Figure 3 It is a structural schematic diagram of the internal blocking support mechanism of the present invention in an open state;

[0035] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0036] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0037] In the figure, 1. tank body; 11. mixing and stirring chamber; 12. discharge chamber; 13. raw material inlet; 14. auxiliary material inlet; 15. high-pressure air pipe; 16. discharge port; 2. filter screen; 21. retaining ring; 3. stirring structure; 31. vertical shaft; 32. stirring horizontal plate; 33. scraping structure; 4. blocking support mechanism; 41. ring; 42. middle blocking pin; 43. outer flange; 44. inner flange; 45. compression spring; 5. vertical push member; 6. motor. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] like Figures 1 to 5 As shown, an integrated device for preparing and mixing formaldehyde-free board glue comprises a tank body 1, the inner cavity of the tank body 1 is divided into a mixing and stirring chamber 11 and a discharging chamber 12 respectively located at the upper and lower sides by a filter screen 2, a heating device is arranged in the side wall of the mixing and stirring chamber 11, a stirring structure 3 is arranged in the mixing and stirring chamber 11, a raw material inlet 13, an auxiliary material inlet 14 and a high-pressure air pipe 15 are arranged at the top of the mixing and stirring chamber 11, the filter screen 2 is located at the bottom of the mixing and stirring chamber 11, and a discharge port 16 is arranged at the lower end of the discharging chamber 12. The stirring structure 3 comprises a vertical rotating shaft 31 and a stirring horizontal plate 32 equidistantly arranged on the vertical rotating shaft 31, and a scraping structure 33 in contact with the filter screen 2 is arranged at the lower end of the vertical rotating shaft 31. A pressure relief valve is arranged on the top wall of the mixing and stirring chamber 11, and the stirring structure 3 is driven by a motor 6 located outside the mixing and stirring chamber 11. The integrated purification device is also equipped with a distillation device and an extraction device as needed.

[0041] The filter screen 2 is fixed to the inner cavity of the tank body 1 through a retaining ring 21 , and a blocking support mechanism 4 for the filter screen 2 is provided at the lower side of the filter screen 2 . The blocking support mechanism 4 includes a plurality of mutually sleeved rings 41 and a middle blocking pin 42. The lower ends of the rings 41 and the middle blocking pin 42 are both provided with outer flanges 43. The upper edges of the inner holes of the rings 41 and the retaining ring 21 are both provided with inner flanges 44. The outermost ring 41 is movably inserted in the inner hole of the retaining ring 21 from bottom to top. The inner ring 41 of two adjacent rings 41 is movably inserted in the inner hole of the outer ring 41 from bottom to top. The middle blocking pin 42 is movably inserted in the inner hole of the innermost ring 41 from bottom to top. From outside to inside, the diameter of the outer flange 43 of the ring 41 gradually decreases. The outer flange 43 of the middle blocking pin 42 is smaller than the outer flanges 43 of all the rings 41. A vertical pushing member 5 is provided at the lower end of the blocking pin 42. The inner flange 44 of the ring 41 and the inner flange 44 of the retaining ring 21 can be sealed and fitted with the upper end surface of the inner hole of the corresponding ring 41, and the rod body of the ring 41 and the inner hole of the outer adjacent ring 41 are slidingly fitted or clearance-fitted. A guide groove is provided between the rod body of the ring 41 and the inner hole of the outer adjacent ring 41. A compression spring 45 is provided between the outer flange 43 of the ring 41 and the lower end surface of the inner hole of the outer adjacent ring 41.

[0042] How it works:

[0043] First, the vertical pushing member 5 is used to push up the middle blocking pin 42, so that the middle blocking pin 42 and the ring member 41 are assembled to realize vertical support and blocking of the filter screen 2, and then the raw materials and auxiliary materials are discharged from the corresponding inlets into the mixing and stirring chamber 11 for stirring. During stirring, the materials can be heated by a heating device to accelerate the reaction between the materials. After the stirring is completed, the vertical pushing member 5 is moved downward, and the middle blocking pin 42 and the ring member 41 are evenly expanded under the action of their own gravity and the downward thrust of the compression spring 45. At this time, high-pressure gas is injected into the mixing and stirring chamber 11 through the high-pressure air pipe 15. The injection of high-pressure gas pushes the mixed colloid to flow through the gap between the filter screen 2 and the ring member 41 to the discharge chamber 12. The colloid in the discharge chamber 12 is pushed by the continuous high-pressure gas and finally discharged through the discharge port 16. During the high-pressure gas pushing process, the motor 6 drives the stirring structure 3 to continue to rotate, and the scraping structure 33 at the lower end of the stirring structure 3 can continuously clean the filter 2, sweeping away large particles of material, so that the colloid that meets the requirements can smoothly pass through the filter 2. In this process, if the air pressure in the mixing and stirring chamber 11 is too high, the pressure relief valve at the top of the mixing and stirring chamber 11 can also automatically exhaust air to avoid the tank body 1 from bursting due to excessive air pressure in the mixing and stirring chamber 11.

Claims

1. An integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive, characterized in that: The invention comprises a tank body (1), the inner cavity of which is divided by a filter screen (2) into a mixing and stirring chamber (11) and a discharge chamber (12) located at the upper and lower sides respectively, a stirring structure (3) is arranged in the mixing and stirring chamber (11), a raw material inlet (13), an auxiliary material inlet (14) and a high-pressure air pipe (15) are arranged at the top of the mixing and stirring chamber (11), the filter screen (2) is located at the bottom of the mixing and stirring chamber (11), and a discharge port (16) is arranged at the lower end of the discharge chamber (12).

2. The integrated device for preparing, mixing and purifying formaldehyde-free sheet glue according to claim 1, characterized in that: The lower end of the stirring structure (3) is provided with a scraping structure (33) which is in contact with the filter screen (2).

3. The integrated device for preparing, mixing and purifying formaldehyde-free sheet glue according to claim 2, characterized in that: The filter screen (2) is fixed to the inner cavity of the tank body (1) via a retaining ring (21), and a blocking support mechanism (4) for the filter screen (2) is provided on the lower side of the filter screen (2).

4. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 3, characterized in that: The blocking support mechanism (4) comprises a plurality of mutually sleeved rings (41) and a middle blocking pin (42), the lower ends of the rings (41) and the middle blocking member (42) are both provided with outer flanges (43), the upper edges of the inner holes of the rings (41) and the retaining ring (21) are both provided with inner flanges (44), the outermost ring (41) is movably inserted into the inner hole of the retaining ring (21) from bottom to top, and the inner edges of the two adjacent rings (41) are respectively provided with outer flanges (43). The ring member (41) is movably inserted into the inner hole of the outer ring member (41) from bottom to top, and the middle blocking pin (42) is movably inserted into the inner hole of the innermost ring member (41) from bottom to top. From outside to inside, the diameter of the outer flange (43) of the ring member (41) gradually decreases, and the outer flange (43) of the middle blocking pin (42) is smaller than the outer flange (43) of all the ring members (41). The lower end of the blocking pin (42) is provided with a vertical pushing member (5).

5. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 4, characterized in that: The inner flange (44) of the ring (41) and the inner flange (44) of the retaining ring (21) can be sealed and fitted with the upper end surface of the inner hole of the corresponding ring (41), and the rod body of the ring (41) and the inner hole of the outer adjacent ring (41) are in a sliding fit or a clearance fit.

6. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 5, characterized in that: A flow guide groove is provided between the rod body of the ring member (41) and the inner hole of the outer adjacent ring member (41).

7. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 6, characterized in that: A compression spring (45) is arranged between the outer flange (43) of the ring member (41) and the lower end surface of the inner hole of the outer adjacent ring member (41).

8. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 1, characterized in that: The top wall of the mixing and stirring chamber (11) is provided with a pressure relief valve.

9. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 1, characterized in that: The stirring structure (3) is driven by a motor (6) located outside the mixing and stirring chamber (11).

10. The integrated device for preparing, mixing and purifying formaldehyde-free sheet adhesive according to claim 1, characterized in that: The integrated purification device is also equipped with a distillation device and an extraction device as required.

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