Purification device for production of diguanide phosphate

Abstract

The invention discloses a purification device for diguanide phosphate production, and relates to the technical field of diguanide phosphate production.The purification device comprises a heating furnace and an auxiliary purification mechanism, the auxiliary purification mechanism comprises a water-gas separation box and a gas guide pipe, and the water-gas separation box is fixedly installed on the right side of the top end of a furnace cover through bolts; the gas guide pipe is fixedly installed in the middle of the top end of the water-gas separation box through bolts. The extrusion cam extrudes the sliding block, so that the two water absorption materials alternately absorb water and squeeze water, hot gas is guided into the purification furnace through the gas guide column, the hot gas is added into a diguanide phosphate solution to accelerate concentration and purification, and the solution is stirred through gas flow to accelerate the flowing of the solution, so that the purification efficiency is improved; the turbofan is driven to rotate through hot air, the stirring plate is driven to stir in the purification furnace, and crystals on the inner wall of the purification furnace are scraped off and separated by the stirring plate while the concentration speed is increased, so that the crystals are prevented from being attached to the inner wall of the purification furnace.

Description

Technical Field

[0001] The invention relates to the technical field of diguanidine phosphate production, in particular to a purification device used for diguanidine phosphate production. Background Art

[0002] Biguanide phosphate is a white crystalline powder. At 20 degrees Celsius, its solubility in 100 grams of water is 15.5 grams. At 20 degrees Celsius, 0.1 grams can be dissolved in 100 grams of methanol. It is almost insoluble in organic solvents such as benzene, acetone and ether. The Chinese patent application with application number 202220949925.0 discloses "a high-efficiency drying device for the production of biguanide phosphate, comprising four bases, the tops of the four bases are fixedly mounted with workbenches, the tops of the workbenches are fixedly mounted with an organic body, the interior of the body is provided with a drying mechanism, and the top of the body is fixedly connected to There is a feed pipe, a conveying mechanism is provided inside the machine body, the drying mechanism includes an air inlet pipe fixedly connected to the left side of the machine body, a hot air blower is fixedly connected to the right side of the air inlet pipe, and a conveying pipe is fixedly connected to the output end of the hot air blower. The drying mechanism also includes a drying box fixedly connected to the inside of the machine body, and a turntable is rotatably connected inside the drying box. The drying device for diguanidine phosphate production can improve the drying efficiency of diguanidine phosphate by providing a drying mechanism in the machine body. Compared with the traditional drying device for diguanidine phosphate production, the drying efficiency of diguanidine phosphate is improved, and the production efficiency is improved.

[0003] This technical solution only solves the problem of low drying effect of the existing drying device for diguanidine phosphate production. However, in the diguanidine phosphate production process, the diguanidine phosphate still needs to be purified and concentrated and purified in a concentration container. During the purification, a large amount of crystals will be produced on the inner wall of the container. If the crystals attached to the inner wall are not separated from the inner wall in time, the purification effect of the diguanidine phosphate will be affected, thereby causing a decrease in the production efficiency of the diguanidine phosphate. Moreover, in the current diguanidine phosphate purification device, the diguanidine phosphate solution is often not fully stirred, resulting in low purification efficiency. Summary of the invention

[0004] The object of the present invention is to provide a purification device for the production of diguanidine phosphate to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a purification device for the production of diguanidine phosphate, comprising a heating furnace, a purification furnace is fixedly installed inside the heating furnace by bolts, a furnace cover is fixedly installed on the top of the purification furnace by bolts, a feed pipe is fixedly installed on the top of the left side of the heating furnace and the purification furnace by bolts, and a discharge pipe is fixedly installed on the bottom of the right side of the heating furnace and the purification furnace by bolts;

[0006] It also includes auxiliary purification mechanism, stirring purification mechanism and crystal scraping mechanism:

[0007] Auxiliary purification mechanism, the auxiliary purification mechanism includes a water-gas separation box and an air guide pipe, the water-gas separation box is fixedly installed on the right side of the top of the furnace cover by bolts, and the air guide pipe is fixedly installed in the middle of the top of the water-gas separation box by bolts;

[0008] A stirring and purifying mechanism, the stirring and purifying mechanism comprises a gas outlet base and a gas guide column, the gas outlet base is fixedly installed in the middle of the inner bottom end of the purification furnace by bolts, the top end of the gas guide column is connected to the upper end of the gas guide pipe, and the bottom end of the gas guide column is installed in the middle of the top end of the gas outlet base by insertion;

[0009] The crystal scraping mechanism comprises a threaded column, which is located above the purification furnace and is movably sleeved outside the gas guide column.

[0010] Preferably, the auxiliary purification mechanism includes an air inlet pipe, a partition, a perforated plate and a water-absorbing material. The bottom end of the air inlet pipe is fixedly installed on the right side of the top of the heating furnace by inserting bolts, the upper end of the air inlet pipe is fixedly installed in the middle of the right bottom end of the water-gas separation box by inserting bolts, the partition is fixedly installed in the middle of the inside of the water-gas separation box by bolts, there are two perforated plates and they are respectively fixedly installed at the top and bottom of the partition by bolts, there are two water-absorbing materials and they are respectively installed between the partition and the water-gas separation box by insertion and are respectively located on the left and right sides of the partition, and are both located between the two perforated plates.

[0011] Preferably, the auxiliary purification mechanism includes a support rod, a slider, a first return spring, a first support plate and a second support plate. Two slots are provided on the front and rear sides of the water vapor separation box. There is one support rod at the upper and lower ends of each slot and they are fixedly installed on the front and rear side walls of the water vapor separation box by bolts. There are four sliders in total and they are movably installed in the slots by insertion, and they are movably installed between the partition and the water vapor separation box and are located between the two orifice plates by insertion. The upper and lower ends of each slider away from the water vapor separation box are movably sleeved on the upper and lower support rods at the slots where they are located. There are eight first return springs in total and they are movably sleeved on the support rods. The first support plate is fixedly installed on the front right side of the top of the heating furnace by bolts, and the second support plate is fixedly installed on the front right side of the top of the furnace cover by bolts.

[0012] Preferably, the auxiliary purification mechanism includes a third support plate, a fourth support plate, a first extrusion shaft, a second extrusion shaft and an extrusion cam, the third support plate is fixedly installed at the right rear end of the top of the heating furnace by bolts, the fourth support plate is fixedly installed at the right rear end of the top of the furnace cover by bolts, the first extrusion shaft is installed in the middle of the top of the first support plate and the second support plate by insertion, the right end of the second extrusion shaft is installed in the middle of the top of the third support plate and the fourth support plate by insertion, there are two groups of extrusion cams and they are respectively fixedly installed in the middle of the first extrusion shaft and the right end of the second extrusion shaft by bolts, each group of extrusion cams has two pieces, and the two extrusion cams located on the front side of the water-gas separation box are respectively slidably connected with the two sliders on the same side, and the two extrusion cams are in opposite directions away from the end of the first extrusion shaft, and the two groups of extrusion cams are symmetrical.

[0013] Preferably, the auxiliary purification mechanism includes a first transmission gear, a second transmission gear, a first transmission belt, a reflux pipe and a heating device, the first transmission gear is fixedly installed on the end of the second extrusion shaft located on the right side of the third support plate by bolts, the second transmission gear is movably installed on the right top end of the third support plate by a rotating shaft and is meshed with the first transmission gear, a pulley is fixedly installed on the side of the second transmission gear away from the third support plate by bolts, the rear end of the first transmission belt is movably sleeved on the pulley, the front end of the first transmission belt is movably sleeved on the end of the first extrusion shaft located on the right side of the first support plate, the bottom end of the reflux pipe is fixedly inserted and installed on the top right side of the heating furnace by bolts, the upper end of the reflux pipe is fixedly installed on the right bottom end of the water-gas separation box by bolts, and the heating device is fixedly installed in the middle of the inner bottom end of the heating furnace by bolts.

[0014] Preferably, the stirring and purification mechanism includes an air outlet pipe, a rotating column, a turbofan, a supporting cover, a stirring disk, a plate groove and a stirring plate, the air outlet pipes are in total of several and are respectively fixedly installed in the oblique side walls of the air outlet base by insertion, the rotating column is movably sleeved on the outside of the air guide column, the bottom end of the rotating column is movably installed on the top end of the air outlet base through a bearing, the turbofan is fixedly sleeved on the bottom end of the rotating column by bolts, the supporting cover is fixedly sleeved in the middle of the rotating column by bolts, and is located below the furnace cover and is slidably connected to the top inner wall of the purification furnace and the furnace cover, the stirring disk is located below the supporting cover and is movably sleeved on the outside of the rotating column, there are in total several plate grooves and are evenly arranged in a circle and are opened away from the center of the stirring disk, there are in total several stirring plates and are respectively movably installed in the plate grooves by insertion, and the top end of the stirring plate is fixedly installed on the bottom end of the supporting cover by bolts.

[0015] Preferably, the crystal scraping mechanism includes a support frame, a motor, a third transmission gear, a fourth transmission gear and a lifting cylinder. The support frame is fixedly installed on the left side of the top of the furnace cover by bolts, and one end of the support frame close to the rotating column is movably sleeved on the top of the rotating column. The motor is fixedly installed in the middle of the top of the support frame by bolts, and the third transmission gear is fixedly sleeved on the output shaft of the motor located below the top of the support frame by bolts. The bottom end of the threaded column is movably installed in the middle of the top of the support cover through a bearing, the fourth transmission gear is fixedly installed on the top of the threaded column by bolts and movably sleeved on the outside of the rotating column, and the lifting cylinder is movably sleeved on the outside of the threaded column through threads.

[0016] Preferably, the crystal scraping mechanism includes a connecting plate, a support column, a fixed plate, a lifting rod and a scraper, the connecting plate is movably sleeved on the bottom end of the lifting cylinder through a bearing, there are a number of support columns and they are evenly arranged in a circle and are movably installed in the support cover through insertion, the top of the support column is fixedly installed on the bottom end of the connecting plate by bolts, there are a number of fixed plates and one end close to the middle of the interior of the purification furnace is fixedly installed on the bottom end of the support column by bolts, there are a number of lifting rods and they are movably installed in the support column by insertion, the top of the lifting rod is movably installed in the connecting plate by insertion, there are a number of scrapers and one end close to the middle of the interior of the purification furnace is movably installed on the bottom end of the lifting rod by a rotating shaft, the middle of the scraper is movably installed on the middle of the top of the fixed plate through a rotating shaft, and the end of the scraper close to the inner wall of the purification furnace is fixedly installed with a scraper brush by bolts.

[0017] Preferably, the crystal scraping mechanism includes an extrusion cap, a second return spring, an extrusion block, a hanging block and a transmission shaft, there are several extrusion caps and they are respectively fixedly installed on the top of the lifting rod by bolts, there are several second return springs and they are respectively movably sleeved on the top of the lifting rod and are located between the extrusion cap and the connecting plate, the extrusion block is fixedly installed on the top of the side wall of the lifting cylinder by bolts, the hanging block is fixedly installed on the top of the support frame by bolts, and the transmission shaft is movably installed on the bottom end of the hanging block by insertion.

[0018] Preferably, the crystal scraping mechanism includes a first bevel gear, a second bevel gear, a second transmission belt and a bevel plate. The first bevel gear is fixedly sleeved on the output shaft of the motor by bolts and is located below the third transmission gear. The second bevel gear is fixedly installed on the end of the transmission shaft close to the first bevel gear by bolts and is meshingly connected with the first bevel gear. The top end of the second transmission belt is movably sleeved on the end of the transmission shaft outside the support frame away from the threaded column. The bottom end of the second transmission belt is movably sleeved on the end of the second extrusion shaft away from the fourth support plate. A number of exhaust holes are provided on the support cover and the stirring plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is designed and installed with an auxiliary purification mechanism and a stirring purification mechanism. The two water-absorbing materials alternately absorb and squeeze water by squeezing the slider through the squeezing cam, so that the water vapor generated in the purification furnace is separated from the water vapor by the water vapor separation box, and the hot air can be introduced into the purification furnace through the air guide column. The concentration and purification are accelerated by adding hot air to the diguanidine phosphate solution, and the solution is stirred by the air flow to accelerate the flow of the solution to improve its purification efficiency. The hot air drives the turbofan to rotate and drives the stirring plate to stir inside the purification furnace. While increasing the concentration speed, the stirring plate is used to scrape and separate the crystals on the inner wall of the purification furnace, thereby preventing the crystals from adhering to the inner wall of the purification furnace;

[0021] 2. The present invention is designed and installed with a crystal scraping mechanism. When the stirring plate is driven to descend, the diguanidine phosphate crystals attached to the stirring plate are scraped off and separated by the inclined plate, and the scraper scrapes the side wall of the purification furnace while following the rotation of the stirring plate, thereby avoiding a large number of diguanidine phosphate crystals attached to the inner wall of the purification furnace. At the same time, the connecting plate is used to squeeze the extrusion cap when the extrusion block is rotated, so that the scraper scrapes the inner wall of the purification furnace up and down, further improving the effect of separating the diguanidine phosphate crystals attached to the inner wall of the purification furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Provides an overall structural diagram for an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the overall cross-sectional structure of a device provided in an embodiment of the present invention;

[0024] Figure 3 An overall schematic diagram of an auxiliary purification mechanism provided in an embodiment of the present invention;

[0025] Figure 4 A partial schematic diagram of an auxiliary purification mechanism provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the cross-sectional structure of a water-gas separation box provided in an embodiment of the present invention;

[0027] Figure 6 A partial schematic diagram of a stirring and purification mechanism provided in an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a crystal scraping mechanism provided in an embodiment of the present invention;

[0029] Figure 8 The embodiment of the present invention provides Figure 7 The enlarged structural diagram at A in the middle;

[0030] Fig. 9A schematic diagram of the structure of a scraper provided in an embodiment of the present invention;

[0031] Fig.10 A schematic diagram of the rear structure of the device provided in an embodiment of the present invention.

[0032] In the figure: 1, heating furnace; 2, purification furnace; 3, furnace cover; 4, feed pipe; 5, discharge pipe; 6, auxiliary purification mechanism; 601, water-gas separation box; 602, air inlet pipe; 603, air guide pipe; 604, partition; 605, orifice plate; 606, water-absorbing material; 607, support rod; 608, slider; 609, first return spring; 610, first support plate; 611, second support plate; 612, third support plate; 613, fourth support plate; 614, first extrusion shaft; 615, second extrusion shaft; 616, extrusion cam; 617, first transmission gear; 618, second transmission gear; 619, first transmission belt; 620, reflux pipe; 621, heating device; 7, stirring and purification mechanism; 701, outlet base Seat; 702, air outlet pipe; 703, air guide column; 704, rotating column; 705, turbofan; 706, support cover; 707, stirring plate; 708, plate groove; 709, stirring plate; 8, crystal scraping mechanism; 801, support frame; 802, motor; 803, third transmission gear; 804, threaded column; 805, fourth transmission gear; 806, lifting cylinder; 807, connecting plate; 808, support column; 809, fixing plate; 810, lifting rod; 811, scraper; 812, extrusion cap; 813, second return spring; 814, extrusion block; 815, suspension block; 816, transmission shaft; 817, first bevel gear; 818, second bevel gear; 819, second transmission belt; 820, inclined plate; 9, exhaust hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 10 The present invention provides a technical solution: a purification device for the production of diguanidine phosphate, comprising a heating furnace 1, a purification furnace 2 is fixedly installed inside the heating furnace 1 by bolts, a furnace cover 3 is fixedly installed on the top of the purification furnace 2 by bolts, a feed pipe 4 is fixedly installed on the top of the left side of the heating furnace 1 and the purification furnace 2 by bolts, and a discharge pipe 5 is fixedly installed on the bottom of the right side of the heating furnace 1 and the purification furnace 2 by bolts;

[0035] It also includes an auxiliary purification mechanism 6, a stirring purification mechanism 7 and a crystal scraping mechanism 8:

[0036] Auxiliary purification mechanism 6, the auxiliary purification mechanism 6 includes a water-gas separation box 601 and an air guide pipe 603, the water-gas separation box 601 is fixedly installed on the right side of the top of the furnace cover 3 by bolts, and the air guide pipe 603 is fixedly installed in the middle of the top of the water-gas separation box 601 by bolts;

[0037] The stirring and purifying mechanism 7 includes a gas outlet base 701 and a gas guide column 703. The gas outlet base 701 is fixedly installed in the middle of the inner bottom end of the purification furnace 2 by bolts. The top end of the gas guide column 703 is connected to the upper end of the gas guide pipe 603. The bottom end of the gas guide column 703 is installed in the middle of the top end of the gas outlet base 701 by insertion.

[0038] The crystal scraping mechanism 8 includes a threaded column 804 , which is located above the purification furnace 2 and is movably sleeved on the outside of the gas guide column 703 .

[0039] The auxiliary purification mechanism 6 includes an air inlet pipe 602, a partition plate 604, a perforated plate 605 and a water-absorbing material 606. The bottom end of the air inlet pipe 602 is fixedly installed on the top right side of the heating furnace 1 by bolt insertion, and the upper end of the air inlet pipe 602 is fixedly installed in the middle of the right bottom end of the water-gas separation box 601 by bolt insertion. The partition plate 604 is fixedly installed in the middle of the interior of the water-gas separation box 601 by bolts. There are two orifice plates 605 and they are fixedly installed on the top and bottom of the partition plate 604 by bolts. There are two water-absorbing materials 606 and they are respectively inserted into the movable Installed between the partition 604 and the water-gas separation box 601 and located on the left and right sides of the partition 604 respectively, and both located between the two orifice plates 605; by introducing the water vapor generated in the heating furnace 1 into the water-gas separation box 601, the hot air after a large amount of water is separated by the water-gas separation box 601 is introduced into the air guide column 703 through the air guide pipe 603, and two water absorption areas and upper and lower air chambers are separated by the partition 604 and the orifice plate 605, and water absorption and water squeezing are alternately performed by two water-absorbing materials 606, so that the water-gas separation box 601 can always separate water and gas;

[0040] The auxiliary purification mechanism 6 includes a support rod 607, a slider 608, a first return spring 609, a first support plate 610 and a second support plate 611. Two slots are provided on the front and rear sides of the water-gas separation box 601. A support rod 607 is provided at the upper and lower ends of each slot and is respectively fixed to the front and rear side walls of the water-gas separation box 601 by bolts. There are four sliders 608 and they are respectively installed in the slots by insertion and are respectively installed between the partition 604 and the water-gas separation box 601 and are located between the two orifice plates 605. Each slider 608 is located at the upper and lower ends of one end away from the water-gas separation box 601. The ends are respectively movably sleeved on the upper and lower support rods 607 at the slots where they are located, there are eight first return springs 609 in total and they are respectively movably sleeved on the support rods 607, the first support plate 610 is fixedly installed at the front end of the right side of the top of the heating furnace 1 by bolts, and the second support plate 611 is fixedly installed at the front end of the right side of the top of the furnace cover 3 by bolts; the water-absorbing material 606 is squeezed by the slider 608 to squeeze out the water in the water-absorbing material 606, and the slider 608 entering the water-gas separation box 601 is reset by the elastic force of the first return spring 609, thereby driving the water-absorbing material 606 connected thereto to reset and make it return to the water-absorbing state;

[0041] The auxiliary purification mechanism 6 includes a third support plate 612, a fourth support plate 613, a first extrusion shaft 614, a second extrusion shaft 615 and an extrusion cam 616. The third support plate 612 is fixedly installed at the right rear end of the top of the heating furnace 1 by bolts, and the fourth support plate 613 is fixedly installed at the right rear end of the top of the furnace cover 3 by bolts. The first extrusion shaft 614 is installed in the middle of the top of the first support plate 610 and the second support plate 611 by insertion. The right end of the second extrusion shaft 615 is installed in the middle of the top of the third support plate 612 and the fourth support plate 613 by insertion. There are two groups of extrusion cams 616, which are fixedly installed in the first and second support plates 610 and 611 by bolts. There are two extrusion cams 616 in each group, located in the middle of the extrusion shaft 614 and at the right end of the second extrusion shaft 615. The two extrusion cams 616 located at the front side of the water-gas separation box 601 are respectively slidably connected to the two sliders 608 on the same side, and the two extrusion cams 616 are in opposite directions away from the ends of the first extrusion shaft 614. The two groups of extrusion cams 616 are symmetrically structured. The first extrusion shaft 614 and the second extrusion shaft 615 rotate in opposite directions, driving the extrusion cams 616 to squeeze the slider 608 to squeeze the water-absorbing material 606, so that the water absorbed in the water-absorbing material 606 is squeezed and flows to the bottom end of the water-gas separation box 601 through the orifice plate 605.

[0042] The auxiliary purification mechanism 6 includes a first transmission gear 617, a second transmission gear 618, a first transmission belt 619, a reflux pipe 620 and a heating device 621. The first transmission gear 617 is fixedly mounted on the second extrusion shaft 615 at one end on the right side of the third support plate 612 by bolts. The second transmission gear 618 is movably mounted on the right top of the third support plate 612 through a rotating shaft and is meshed with the first transmission gear 617. The second transmission gear 618 is fixedly mounted with a pulley on the side away from the third support plate 612 by bolts. The rear end of the first transmission belt 619 is movably sleeved on the pulley, and the front end of the first transmission belt 619 is movably sleeved on the first The extrusion shaft 614 is located at one end on the right side of the first support plate 610, the bottom end of the return pipe 620 is fixedly installed on the top right side of the heating furnace 1 by bolts, the upper end of the return pipe 620 is fixedly installed on the right bottom end of the water-gas separation box 601 by bolts, and the heating device 621 is fixedly installed in the middle of the inner bottom end of the heating furnace 1 by bolts; the second transmission gear 618 is driven to rotate by the first transmission gear 617, and the first extrusion shaft 614 is driven to rotate by the first transmission belt 619, so that the first extrusion shaft 614 and the second extrusion shaft 615 rotate in opposite directions, and the water in the water-gas separation box 601 is returned to the heating furnace 1 through the return pipe 620;

[0043] The stirring and purification mechanism 7 includes an air outlet pipe 702, a rotating column 704, a turbofan 705, a support cover 706, a stirring plate 707, a plate groove 708 and a stirring plate 709. There are a plurality of air outlet pipes 702, which are respectively fixedly installed in the oblique side walls of the air outlet base 701 by insertion. The rotating column 704 is movably sleeved on the outside of the air guide column 703. The bottom end of the rotating column 704 is movably installed on the top of the air outlet base 701 through a bearing. The turbofan 705 is fixedly sleeved on the bottom end of the rotating column 704 by bolts. The support cover 706 is fixedly sleeved in the middle of the rotating column 704 by bolts, and is located below the furnace cover 3 and is slidably connected to the top inner wall of the purification furnace 2 and the furnace cover 3. The stirring plate 707 is located below the support cover 706 and is movably sleeved on the outside of the rotating column 704. The plate groove 708 has a total of Several stirring plates 709 are evenly arranged in a circle and are arranged away from the center of the stirring plate 707. There are several stirring plates 709 and they are respectively installed in the plate grooves 708 by insertion. The top of the stirring plate 709 is fixedly installed on the bottom of the support cover 706 by bolts. The hot air ejected from the air outlet pipe 702 drives the turbofan 705 to rotate, so that the rotating column 704 rotates with the turbofan 705. When the turbofan 705 rotates, it drives the support cover 706 to rotate at the same time, so that the stirring plates 709 inside the purification furnace 2 rotate with the support cover 706, so as to stir the diguanidine phosphate solution inside the purification furnace 2 and improve the purification efficiency of the diguanidine phosphate solution. When the stirring plates 709 rotate, they scrape the inner wall of the purification furnace 2, so that the crystals attached to the inner wall of the purification furnace 2 during the purification of the diguanidine phosphate solution are scraped off.

[0044] The crystal scraping mechanism 8 includes a support frame 801, a motor 802, a third transmission gear 803, a fourth transmission gear 805 and a lifting cylinder 806. The support frame 801 is fixedly installed on the left side of the top of the furnace cover 3 by bolts, and one end of the support frame 801 close to the rotating column 704 is movably sleeved on the top of the rotating column 704. The motor 802 is fixedly installed in the middle of the top of the support frame 801 by bolts. The third transmission gear 803 is fixedly sleeved on the output shaft of the motor 802 located below the top of the support frame 801 by bolts. The bottom end of the threaded column 804 is movably installed in the middle of the top of the support cover 706 by a bearing. The fourth transmission gear 805 is fixedly installed on the top of the threaded column 804 by bolts and movably sleeved on the outside of the rotating column 704. The lifting cylinder 806 is movably sleeved on the outside of the threaded column 804 by threads; the third transmission gear 803 is driven to rotate by the motor 802, and then the fourth transmission gear 805 is driven to rotate by the third transmission gear 803, so that the threaded column 804 rotates following the fourth transmission gear 805.

[0045] The crystal scraping mechanism 8 includes a connecting plate 807, a support column 808, a fixed plate 809, a lifting rod 810 and a scraper 811. The connecting plate 807 is movably sleeved on the bottom end of the lifting cylinder 806 through a bearing. There are a number of support columns 808 that are evenly arranged in a circle and are installed in the support cover 706 through insertion. The top of the support column 808 is fixedly installed on the bottom end of the connecting plate 807 by bolts. There are a number of fixed plates 809 and one end close to the middle of the interior of the purification furnace 2 is fixedly installed on the bottom end of the support column 808 by bolts. There are a number of lifting rods 810 that are installed in the support column 808 through insertion. The top of the lifting rod 810 The scraper 811 is movably installed in the connecting plate 807 by insertion. There are several scrapers 811 and one end close to the middle of the interior of the purification furnace 2 is movably installed at the bottom end of the lifting rod 810 through a rotating shaft. The middle of the scraper 811 is movably installed in the middle of the top of the fixed plate 809 through a rotating shaft. The end of the scraper 811 close to the inner wall of the purification furnace 2 is fixed with a scraping brush by bolts; through the limit of the support column 808, the lifting cylinder 806 drives the connecting plate 807 to move up and down, and the connection plate 807 is controlled by controlling the forward and reverse rotation of the motor 802 to control the lifting and lowering of the connecting plate 807. When the connecting plate 807 descends, the stirring plate 707 is driven to descend inside the purification furnace 2 at the same time through the support column 808;

[0046] The crystal scraping mechanism 8 includes a squeezing cap 812, a second return spring 813, a squeezing block 814, a hanging block 815 and a transmission shaft 816. There are several squeezing caps 812, which are fixedly mounted on the top of the lifting rod 810 by bolts. There are several second return springs 813, which are movably sleeved on the top of the lifting rod 810 and located between the squeezing cap 812 and the connecting plate 807. The squeezing block 814 is fixedly mounted on the top of the side wall of the lifting cylinder 806 by bolts. The hanging block 815 is fixedly mounted on the top of the support frame 801 by bolts. The transmission shaft 816 is movably mounted on the bottom end of the hanging block 815 by insertion. The squeezing cap 812 is squeezed by the connecting plate 807 during rotation, so that the lifting rod 810 descends in the support column 808. After the squeezing is completed, it is reset by the second return spring 813, so that the scraper 811 scrapes the inner wall of the purification furnace 2 up and down.

[0047] The crystal scraping mechanism 8 includes a first bevel gear 817, a second bevel gear 818, a second transmission belt 819 and a ramp 820. The first bevel gear 817 is fixedly sleeved on the output shaft of the motor 802 by bolts and is located below the third transmission gear 803. The second bevel gear 818 is fixedly installed on the end of the transmission shaft 816 close to the first bevel gear 817 by bolts and is meshed with the first bevel gear 817. The top end of the second transmission belt 819 is movably sleeved on the transmission shaft 816 located on the support frame 801. At one end away from the outside of the threaded column 804, the bottom end of the second transmission belt 819 is movably connected to the end of the second extrusion shaft 615 away from the fourth support plate 613, and a number of exhaust holes 9 are provided on the support cover 706 and the stirring plate 707; the side wall of the stirring plate 709 is scraped by the inclined plate 820, so that the diguanidine phosphate crystals attached to the stirring plate 709 are scraped off and separated, and at the same time, the fixed plate 809 is driven to descend, so that the scraper 811 scrapes the side wall of the purification furnace 2 while following the rotation of the stirring plate 707.

[0048] Working principle: When the present invention is in use, after adding water into the heating furnace 1, the water in the heating furnace 1 is heated by the heating device 621, and then the diguanidine phosphate solution is added into the purification furnace 2 through the feed pipe 4, and the water in the diguanidine phosphate solution is evaporated by heating in a water bath, and the water vapor generated by the heated water in the heating furnace 1 enters the water vapor separation box 601 through the air inlet pipe 602, and the steam passes through the orifice plate 605 and is subjected to water absorption treatment by the water absorbing material 606, so that the hot air that absorbs a large amount of water enters the air guide column 703 through the air guide pipe 603, and the hot air enters the air outlet base 701 through the air guide column 703, and then is sprayed into the heating furnace 1 through the air outlet pipe 702, and the hot air is added to the diguanidine phosphate solution to assist in heating the diguanidine phosphate solution. In addition, the flow of the diguanidine phosphate solution is accelerated by the airflow to accelerate its concentration efficiency;

[0049] The hot air ejected from the air outlet pipe 702 drives the turbofan 705 to rotate, so that the rotating column 704 rotates along with the turbofan 705. When the turbofan 705 rotates, the supporting cover 706 is driven to rotate at the same time, so that the stirring plate 709 inside the purification furnace 2 rotates along with the supporting cover 706, so as to stir the diguanidine phosphate solution inside the purification furnace 2, thereby improving the concentration and purification efficiency of the diguanidine phosphate solution. The stirring plate 709 scrapes the inner wall of the purification furnace 2 when rotating, so that the crystals attached to the inner wall of the purification furnace 2 when the diguanidine phosphate solution is concentrated are scraped off;

[0050] The motor 802 is started, and the first bevel gear 817 is driven to rotate by the motor 802. When the first bevel gear 817 rotates, the transmission shaft 816 is driven to rotate by the second bevel gear 818, and then the second extrusion shaft 615 is driven to rotate by the second transmission belt 819. When the second extrusion shaft 615 rotates, the second transmission gear 618 is driven to rotate by the first transmission gear 617, and then the first extrusion shaft 614 is driven to rotate by the first transmission belt 619, so that the first extrusion shaft 614 and the second extrusion shaft 615 rotate in opposite directions. The pressing cam 616 squeezes the slider 608 to squeeze the water absorbing material 606, so that the water absorbed in the water absorbing material 606 is squeezed and flows to the bottom end of the water-gas separation box 601 through the orifice plate 605, and flows back into the heating furnace 1 through the return pipe 620. When one piece of water absorbing material 606 is squeezed, the sliders 608 on both sides of another piece of water absorbing material 606 are reset under the elastic force of the first return spring 609, so that the water absorbing material 606 is in a water absorbing state, so that the water absorbing material 606 entering the water-gas separation box 601 always maintains the effect of gas-water separation;

[0051] After the motor 802 is started, the third transmission gear 803 is driven to rotate by the motor 802, and then the fourth transmission gear 805 is driven to rotate by the third transmission gear 803, so that the threaded column 804 rotates along with the fourth transmission gear 805. Since the stirring plate 709 is inserted into the plate groove 708 on the stirring plate 707, the stirring plate 707 rotates along with the support cover 706. While the threaded column 804 rotates, due to the limitation of the support column 808, the lifting cylinder 806 drives the connecting plate 807 to perform lifting and lowering movements. The forward and reverse rotations of the motor 802 are controlled to control the lifting and lowering of the connecting plate 807. When the connecting plate 807 descends, the stirring plate 707 is driven by the support column 808 to move upward and downward at the same time. The interior of the purification furnace 2 descends, and when the stirring plate 707 descends, the side wall of the stirring plate 709 is scraped by the inclined plate 820, so that the diguanidine phosphate crystals attached to the stirring plate 709 are scraped off and separated, and at the same time, the fixed plate 809 is driven to descend, so that the scraper 811 scrapes the side wall of the purification furnace 2 while following the rotation of the stirring plate 707. At the same time, the connecting plate 807 causes the extrusion block 814 to squeeze the extrusion cap 812 during rotation, so that the lifting rod 810 descends in the support column 808. After the extrusion is completed, it is reset by the second reset spring 813, so that the scraper 811 scrapes the inner wall of the purification furnace 2 up and down, further improving the effect of separating the diguanidine phosphate crystals attached to the inner wall of the purification furnace 2.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A purification device for producing diguanidine phosphate, comprising a heating furnace (1), a purification furnace (2) fixedly installed inside the heating furnace (1), a furnace cover (3) fixedly installed on the top of the purification furnace (2), a feed pipe (4) fixedly installed on the top of the left side of the heating furnace (1) and the purification furnace (2), and a discharge pipe (5) fixedly installed on the bottom of the right side of the heating furnace (1) and the purification furnace (2), characterized in that: It also includes an auxiliary purification mechanism (6), a stirring purification mechanism (7) and a crystal scraping mechanism (8): An auxiliary purification mechanism (6), the auxiliary purification mechanism (6) comprising a water-gas separation box (601) and an air guide pipe (603), the water-gas separation box (601) being fixedly mounted on the right side of the top of the furnace cover (3), and the air guide pipe (603) being fixedly mounted in the middle of the top of the water-gas separation box (601); A stirring and purifying mechanism (7), the stirring and purifying mechanism (7) comprising a gas outlet base (701) and a gas guide column (703), the gas outlet base (701) being fixedly mounted in the middle of the inner bottom end of the purification furnace (2), the top end of the gas guide column (703) being connected to the upper end of the gas guide pipe (603), and the bottom end of the gas guide column (703) being movably mounted in the middle of the top end of the gas outlet base (701); A crystal scraping mechanism (8), wherein the crystal scraping mechanism (8) comprises a threaded column (804), wherein the threaded column (804) is located above the purification furnace (2) and is movably mounted outside the gas guide column (703).

2. A purification device for the production of biguanide phosphate according to claim 1, characterized in that: The auxiliary purification mechanism (6) includes an air inlet pipe (602), a partition (604), a perforated plate (605) and a water-absorbing material (606). The bottom end of the air inlet pipe (602) is fixedly installed on the right side of the top of the heating furnace (1) by inserting bolts, and the upper end of the air inlet pipe (602) is fixedly installed in the middle of the right bottom end of the water-gas separation box (601) by inserting bolts. The partition (604) is fixedly installed in the middle of the inside of the water-gas separation box (601) by bolts. There are two perforated plates (605) and they are fixedly installed at the top and bottom of the partition (604) by bolts respectively. There are two water-absorbing materials (606) and they are installed between the partition (604) and the water-gas separation box (601) by inserting and moving respectively, and they are respectively located on the left and right sides of the partition (604), and they are both located between the two perforated plates (605).

3. A purification device for the production of biguanide phosphate according to claim 2, characterized in that: The auxiliary purification mechanism (6) comprises a support rod (607), a slider (608), a first return spring (609), a first support plate (610) and a second support plate (611). The front and rear sides of the water-gas separation box (601) are provided with two slots. The support rod (607) is provided at the upper and lower ends of each slot and is respectively fixedly mounted on the front and rear side walls of the water-gas separation box (601) by bolts. There are four sliders (608) in total and they are respectively installed in the slots by insertion and are respectively installed on the partition (604) by insertion. Between the water-gas separation box (601) and between the two orifice plates (605), the upper and lower ends of one end of each slider (608) away from the water-gas separation box (601) are respectively movably connected to the upper and lower support rods (607) at the slot where they are located, there are eight first return springs (609) in total and they are respectively movably connected to the support rods (607), the first support plate (610) is fixedly installed at the front right side of the top of the heating furnace (1) by bolts, and the second support plate (611) is fixedly installed at the front right side of the top of the furnace cover (3) by bolts.

4. A purification device for the production of biguanide phosphate according to claim 3, characterized in that: The auxiliary purification mechanism (6) comprises a third support plate (612), a fourth support plate (613), a first extrusion shaft (614), a second extrusion shaft (615) and an extrusion cam (616); the third support plate (612) is fixedly mounted on the right rear end of the top end of the heating furnace (1) by means of bolts; the fourth support plate (613) is fixedly mounted on the right rear end of the top end of the furnace cover (3) by means of bolts; the first extrusion shaft (614) is installed in the middle of the top ends of the first support plate (610) and the second support plate (611) by means of insertion; the right end of the second extrusion shaft (615) is installed by means of insertion The extrusion cams (616) are movably mounted in the middle of the top ends of the third support plate (612) and the fourth support plate (613). There are two groups of extrusion cams (616) which are respectively fixed by bolts in the middle of the first extrusion shaft (614) and the right end of the second extrusion shaft (615). Each group of extrusion cams (616) has two pieces, and the two extrusion cams (616) located on the front side of the water-gas separation box (601) are respectively slidably connected to the two sliders (608) on the same side, and the ends of the two extrusion cams (616) away from the first extrusion shaft (614) are in opposite directions. The two groups of extrusion cams (616) are symmetrical in structure.

5. A purification device for the production of biguanide phosphate according to claim 4, characterized in that: The auxiliary purification mechanism (6) includes a first transmission gear (617), a second transmission gear (618), a first transmission belt (619), a reflux pipe (620) and a heating device (621). The first transmission gear (617) is fixedly mounted on the end of the second extrusion shaft (615) located on the right side of the third support plate (612) by bolts. The second transmission gear (618) is movably mounted on the top right side of the third support plate (612) by a rotating shaft and is meshed with the first transmission gear (617). The second transmission gear (618) is away from the third support plate (612). A pulley is fixedly installed on one side by bolts, the rear end of the first transmission belt (619) is movably sleeved on the pulley, the front end of the first transmission belt (619) is movably sleeved on an end of the first extrusion shaft (614) located on the right side of the first support plate (610), the bottom end of the return pipe (620) is fixedly inserted and installed on the right side of the top of the heating furnace (1) by bolts, the upper end of the return pipe (620) is fixedly installed on the right bottom end of the water-gas separation box (601) by bolts, and the heating device (621) is fixedly installed in the middle of the inner bottom end of the heating furnace (1) by bolts.

6. A purification device for the production of biguanide phosphate according to claim 5, characterized in that: The stirring and purification mechanism (7) comprises an air outlet pipe (702), a rotating column (704), a turbofan (705), a support cover (706), a stirring plate (707), a plate groove (708) and a stirring plate (709). The air outlet pipes (702) are a plurality of pipes and are respectively inserted and fixedly installed in the oblique side walls of the air outlet base (701). The rotating column (704) is movably sleeved on the outside of the air guide column (703). The bottom end of the rotating column (704) is movably installed on the top end of the air outlet base (701) through a bearing. The turbofan (705) is fixedly sleeved on the bottom end of the rotating column (704) by bolts. The support cover (706) is fixedly sleeved in the middle of the rotating column (704) by bolts, and is located below the furnace cover (3) and is slidably connected to the top inner wall of the purification furnace (2) and the furnace cover (3). The stirring plate (707) is located below the support cover (706) and is movably sleeved outside the rotating column (704). There are a number of plate grooves (708) that are evenly arranged in a circle away from the center of the stirring plate (707). There are a number of stirring plates (709) that are movably installed in the plate grooves (708) by insertion. The top of the stirring plate (709) is fixedly installed on the bottom end of the support cover (706) by bolts.

7. A purification device for the production of biguanide phosphate according to claim 6, characterized in that: The crystal scraping mechanism (8) comprises a support frame (801), a motor (802), a third transmission gear (803), a fourth transmission gear (805) and a lifting cylinder (806), wherein the support frame (801) is fixedly mounted on the left side of the top end of the furnace cover (3) by means of bolts, an end of the support frame (801) close to the rotating column (704) is movably sleeved on the top end of the rotating column (704), the motor (802) is fixedly mounted on the middle of the top end of the support frame (801) by means of bolts, the third transmission gear (803) is fixedly sleeved on the output shaft of the motor (802) located below the top end of the support frame (801) by means of bolts, the bottom end of the threaded column (804) is movably mounted on the middle of the top end of the support cover (706) by means of a bearing, the fourth transmission gear (805) is fixedly mounted on the top end of the threaded column (804) by means of bolts and is movably sleeved on the outside of the rotating column (704), and the lifting cylinder (806) is movably sleeved on the outside of the threaded column (804) by means of threads.

8. A purification device for the production of biguanide phosphate according to claim 7, characterized in that: The crystal scraping mechanism (8) comprises a connecting plate (807), a supporting column (808), a fixing plate (809), a lifting rod (810) and a scraper (811). The connecting plate (807) is movably sleeved on the bottom end of the lifting cylinder (806) through a bearing. There are a plurality of supporting columns (808) which are evenly arranged in a circle and are movably installed in the supporting cover (706) by insertion. The top of the supporting column (808) is fixedly installed on the bottom end of the connecting plate (807) by bolts. There are a plurality of fixing plates (809) and one end close to the middle of the interior of the purification furnace (2) is fixedly installed by bolts. Installed at the bottom end of the support column (808), there are a total of several lifting rods (810) and they are installed in the support column (808) by insertion. The top of the lifting rod (810) is installed in the connecting plate (807) by insertion. There are a total of several scrapers (811) and one end close to the middle of the inside of the purification furnace (2) is installed at the bottom end of the lifting rod (810) by a rotating shaft. The middle of the scraper (811) is installed in the middle of the top of the fixed plate (809) by a rotating shaft. The end of the scraper (811) close to the inner wall of the purification furnace (2) is fixed with a scraper brush by bolts.

9. A purification device for the production of biguanide phosphate according to claim 8, characterized in that: The crystal scraping mechanism (8) comprises a squeezing cap (812), a second return spring (813), a squeezing block (814), a hanging block (815) and a transmission shaft (816); there are a plurality of squeezing caps (812) which are respectively fixedly mounted on the top of the lifting rod (810) by bolts; there are a plurality of second return springs (813) which are respectively movably sleeved on the top of the lifting rod (810) and located between the squeezing cap (812) and the connecting plate (807); the squeezing block (814) is fixedly mounted on the top of the side wall of the lifting cylinder (806) by bolts; the hanging block (815) is fixedly mounted on the top of the support frame (801) by bolts; and the transmission shaft (816) is movably mounted on the bottom of the hanging block (815) by insertion.

10. A purification device for the production of biguanide phosphate according to claim 9, characterized in that: The crystal scraping mechanism (8) comprises a first bevel gear (817), a second bevel gear (818), a second transmission belt (819) and a ramp (820); the first bevel gear (817) is fixedly sleeved on the output shaft of the motor (802) by means of bolts and is located below the third transmission gear (803); the second bevel gear (818) is fixedly mounted on one end of the transmission shaft (816) close to the first bevel gear (817) by means of bolts and is meshedly connected with the first bevel gear (817); the top end of the second transmission belt (819) is movably sleeved on one end of the transmission shaft (816) located on the side of the support frame (801) away from the threaded column (804); the bottom end of the second transmission belt (819) is movably sleeved on one end of the second extrusion shaft (615) away from the fourth support plate (613); and a plurality of exhaust holes (9) are provided on both the support cover (706) and the stirring plate (707).

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