PLC (Programmable Logic Controller) stewed soup soaking circulation control system

Abstract

The invention relates to the technical field of food processing, and discloses a PLC marinating soup soaking circulation control system which comprises a marinating soup soaking unit, a marinating soup circulation unit, a solid-liquid classification device, a heating temperature control unit and a PLC control unit. The overflow structure is detachably arranged in the main body structure, and through the unique overflow structure, the liquid phase discharge flow speed can be accurately controlled. The overflow assembly in the overflow structure can adjust drainage flow according to actual conditions, part of liquid can be directly discharged through the drainage port by means of rotating throwing force during operation of equipment, the discharging process is accelerated, and when internal pressure is too large, a valve pipe in the overflow assembly can be stressed to move and extrude a spring, so that the overflow assembly is prevented from overflowing. The drainage tank is automatically opened to increase the water outlet speed for pressure relief, so that reverse flow caused by increase of internal pressure is effectively avoided, high efficiency and stability of solid-liquid separation are ensured, and the quality of marinated soup is improved.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, in particular to a PLC brine soaking circulation control system. Background Art

[0002] There are many problems with the existing technology in the process of brine soaking and circulation. On the one hand, in the solid-liquid separation link of the brine, there is a lack of efficient and flexible devices for controlling the discharge of the liquid phase. The traditional separation method is difficult to accurately control the liquid phase discharge flow rate. When the internal pressure changes, the drainage cannot be adjusted in time and effectively, which easily leads to an increase in internal pressure and causes reverse flow, seriously affecting the separation effect, so that the impurities in the brine cannot be fully removed, thereby affecting the quality of the brine and the quality of subsequent products.

[0003] On the other hand, the overall structural design of the equipment is not reasonable, and the installation and disassembly of the components are inconvenient, especially the key components of the solid-liquid separation device, such as the overflow structure, which are complicated to maintain, clean or replace, consuming a lot of manpower and time. In addition, the existing technology also has deficiencies in terms of the overall temperature control of the brine soaking circulation system and the coordinated work between the various units, which cannot meet the needs of modern and refined production, limiting the production efficiency and quality stability of brine products. Summary of the invention

[0004] The object of the present invention is to provide a PLC brine soaking circulation control system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a PLC brine soaking circulation control system, comprising: The brine soaking unit comprises a soaking pool and a hanging basket arranged in the soaking pool for placing the Taihe braised duck to be soaked; A brine circulation unit, comprising a circulation pump and a circulation pipeline connecting the circulation pump and the soaking tank, for circulating the brine in the system; A solid-liquid classification device is arranged on the brine circulation pipeline to separate the solid and liquid of the brine and remove impurities in the brine; A heating and temperature control unit is used to heat the brine and control the temperature of the brine within a set range; The PLC control unit is connected to the brine circulation unit, the solid-liquid classification device, the heating temperature control unit and various sensors. It is used to receive sensor signals and control each unit according to preset control logic.

[0006] Preferably, the solid-liquid classification device includes an overflow structure, and the overflow structure is detachably mounted in the main structure. The main structure is used to transport materials for separation and to carry the overflow structure, and the overflow structure is used to discharge the separated liquid phase.

[0007] Preferably, the overflow structure includes a pair of overflow shells, a plurality of fastening bolts, two pairs of water plates and two pairs of overflow components; the overflow shells of a pair are both circular bowl-shaped structures, and a first set of holes is opened in the middle of the lower wall; a top ring matching the first set of holes is provided on the lower wall of one of the overflow shells, and a circular sealing groove is opened on the lower wall of the overflow shell; two pairs of mounting holes are equidistantly arranged on the lower walls of a pair of overflow shells, and are respectively located on the outside of the set of holes; two pairs of drain outlets are equidistantly arranged along the upper walls of a pair of overflow shells, and are respectively connected to the mounting holes. Correspondingly; a pair of overflow shell upper walls are equidistantly provided with a number of slots, and the slots are respectively located between the drain outlets and correspond to each other; a pair of overflow shell upper walls are equidistantly provided with a number of through-going mounting threaded holes, and are respectively located on both sides of the slots between the drain outlets; a pair of overflow shells can be relatively buckled and fitted, and are fixed in the mounting threaded holes by screwing a number of the fastening bolts; one end of the two pairs of water-carrying plates are respectively movably inserted in the slots, and are respectively located between the overflow shells; the two pairs of overflow components are respectively detachably arranged on the overflow shells.

[0008] Preferably, the overflow assembly comprises a displacement cylinder, a manual adjusting tube, an adjusting thread block, a spring, a push rod, a valve tube and a pair of first nuts; the displacement cylinder is a cylinder structure without a left side wall, and drainage grooves are symmetrically provided on the front and rear side walls near the middle, first oblique threads are provided on the outer walls at both ends of the displacement cylinder, one end of the manual adjusting tube is fixedly welded to the right side wall of the displacement cylinder, and a second oblique thread is provided on the inner wall of the manual adjusting tube, the adjusting thread block is movably screwed in the manual adjusting tube, and a hexagonal groove is provided on the right side wall of the adjusting thread hole side wall, one end of the spring is fixedly connected to the left side wall of the adjusting thread hole block, and is movably embedded in the manual adjusting tube, one end of the push rod is fixedly connected to the other end of the spring, and the other end of the push rod movably passes through the right side wall of the displacement cylinder, the valve tube is a cavity structure, one end of the valve tube is fixedly connected to the other end of the push rod, and is movably embedded in the displacement cylinder, and the first nut is detachably screwed on the left and right side walls of the displacement cylinder.

[0009] Preferably, both ends of the displacement cylinder can movably penetrate the mounting holes of the overflow housing, and are fixed by a first nut, and the first nut is located outside the overflow housing.

[0010] Preferably, when the valve tube is moved by force, the spring is squeezed to open the drainage groove to increase the water outlet speed and relieve pressure.

[0011] Preferably, the main structure includes a lower bottom cover, an upper bottom cover, a spiral drum and a second nut; the lower bottom cover is a semicircular concave T-shaped structure, and the diameter of the right end is larger than the diameter of the left end; a plurality of limit grooves are arranged along the upper wall of the lower bottom cover near the left end; a separation plate is arranged inside the lower bottom cover near the left end; the lower walls at both ends of the lower bottom cover are provided with a solid phase port and a liquid phase port; a first plug ring corresponding to the sealing groove is arranged inside the lower bottom cover near the right end; the upper bottom cover has the same structure as the lower bottom cover, and the lower wall of the upper bottom cover is provided with a A limit block corresponding to the limit groove and a second plug ring corresponding to the first plug ring are provided. The upper bottom cover can be removably buckled on the lower bottom cover and is relatively sealed. The spiral drum is a cavity structure, and a spiral blade is provided on the middle outer wall, and a discharge port is provided near the two spiral blades. The two ends of the spiral drum are respectively movable through the left and right side walls of the upper bottom cover and the lower bottom cover, and the right end of the spiral drum is connected to the inner wall. The second nut is removably screwed on the spiral drum near the right end, and is located inside the right end of the lower bottom cover.

[0012] Preferably, the overflow shells are movably mounted on the right end of the spiral drum and are located inside the right end of the first shell.

[0013] Preferably, the overflow housing is fixed by a second nut, and the sealing groove is movably mounted on the first plug ring and the second plug ring.

[0014] Preferably, the upper bottom cover and the lower bottom cover are relatively buckled and can slide alternately.

[0015] The PLC brine soaking circulation control system proposed by the present invention has the following beneficial effects: 1. The present invention can accurately control the liquid phase discharge flow rate through a unique overflow structure. The overflow assembly in the overflow structure can adjust the drainage flow rate according to actual conditions. When the equipment is running, part of the liquid can be directly discharged through the drain port with the help of the rotating throwing force, which accelerates the discharge process. Moreover, when the internal pressure is too high, the valve pipe in the overflow assembly will be forced to move, squeeze the spring, and automatically open the drain groove to increase the water outlet speed for pressure relief, effectively avoiding reverse flow caused by increased internal pressure, ensuring the efficiency and stability of solid-liquid separation, and improving the quality of brine.

[0016] 2. The overall structural design is ingenious. The overflow shell can be detachably placed in the main structure. When installing, you only need to put the overflow shell on the spiral drum, fix it with the help of the second nut, and then install it through the cooperation of the upper bottom cover and the lower bottom cover. The operation is relatively simple when disassembling. This design greatly facilitates the maintenance, cleaning and component replacement of the equipment, reduces maintenance costs, and improves the convenience and service life of the equipment.

[0017] 3. The matching design of the upper bottom cover and the lower bottom cover increases the volume of the overflow structure installation part. This design improvement can effectively avoid the problem of insufficient volume causing the brine to be unable to be discharged as soon as possible during the brine circulation process, even if the internal hydraulic pressure is too large, ensuring the smooth operation of the brine circulation system, providing strong support for the stable progress of the brine process, and helping to improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural block diagram of the present invention; Figure 2 This is a schematic diagram showing the assembly structure of the solid-liquid separation device of the present invention; Figure 3 It is a schematic diagram of the appearance structure of the solid-liquid separation device of the present invention; Figure 4 It is a schematic diagram of the split structure of the overflow structure of the present invention; Figure 5 This is a schematic diagram showing the installation structure of the overflow structure of the present invention; Figure 6 It is a schematic diagram of the split structure of the main structure of the present invention; Figure 7 It is a schematic diagram of the main structure installation display structure of the present invention; Figure 8 For the present invention Figure 6 A1 in the figure is an enlarged structural diagram; Fig. 9 For the present invention Figure 4 A2 in the figure is an enlarged structural diagram; Fig.10 For the present invention Figure 4 A3 in the figure is an enlarged structural diagram; Fig.11 For the present invention Figure 4 A4 in the figure shows the enlarged structural diagram; Fig.12 For the present invention Figure 4 The enlarged structural diagram at B1 in FIG. Fig.13 For the present invention Figure 5 The enlarged structural diagram at B2 in FIG. Fig.14 For the present invention Figure 5 The enlarged structural diagram at B3 in FIG. Fig.15 For the present invention Figure 2 The enlarged structural diagram at B4 in FIG.

[0019] In the figure: 1. overflow structure; 11. overflow shell; 12. fastening bolt; 13. water plate; 14. overflow assembly; 141. displacement cylinder; 142. manual adjustment tube; 143. adjustment thread block; 144. spring; 145. push rod; 146. valve tube; 147. first nut; 2. main structure; 21. lower bottom cover; 22. upper bottom cover; 23. spiral drum; 24. second nut; 3. first plug ring; 4. hexagonal groove; 5. drainage groove; 6. drainage port; 7. sealing groove; 8. slot; 9. limit groove; 10. limit block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-15 The present invention provides a technical solution: a PLC brine soaking circulation control system, comprising: a brine soaking unit, a brine circulation unit, a solid-liquid classification device, a heating temperature control unit and a PLC control unit; the brine soaking unit comprises a soaking tank and a hanging basket arranged in the soaking tank, for placing Taihe braised duck to be soaked; the brine circulation unit comprises a circulation pump and a circulation pipeline connecting the circulation pump and the soaking tank, for circulating the brine in the system; the solid-liquid classification device is arranged on the brine circulation pipeline, for performing solid-liquid separation on the brine and removing impurities in the brine; the heating temperature control unit is used to heat the brine and control the temperature of the brine within a set range; the PLC control unit is connected to the brine circulation unit, the solid-liquid classification device, the heating temperature control unit and various sensors, for receiving sensor signals and controlling each unit according to a preset control logic.

[0022] As a preferred solution, further, the solid-liquid classification device includes an overflow structure 1, which can be detachably placed in the main structure 2, and the overflow structure 1 includes a pair of overflow shells 11, a plurality of fastening bolts 12, two pairs of water plates 13 and two pairs of overflow components 14; a pair of overflow shells 11 are both circular bowl-shaped structures, and a first set of holes are opened in the middle of the lower wall; a top ring matching the first set of holes is provided on the lower wall of one of the overflow shells 11, and a circular sealing groove 7 is opened on the lower wall of the overflow shell 11; two pairs of mounting holes are equidistantly arranged on the lower walls of the pair of overflow shells 11, and are respectively located outside the holes; a pair of overflow shells 11 are provided with a plurality of mounting holes on the upper wall of the overflow shells 11, and the plurality of mounting holes are respectively located outside the holes; a pair of overflow shells 11 are provided with a plurality of mounting holes on the lower wall of the overflow shells 11, and the plurality of mounting holes ... Two pairs of drain ports 6 are equidistantly arranged along the wall, and correspond to the mounting holes respectively; a pair of overflow shells 11 are provided with a plurality of slots 8 equidistantly arranged along the upper wall, and the slots 8 are respectively located between the drain ports 6 and correspond to each other; a pair of overflow shells 11 are provided with a plurality of through mounting threaded holes equidistantly arranged on the upper wall, and are respectively located on both sides of the slots 8 between the drain ports 6; a pair of overflow shells 11 can be relatively buckled and fitted, and are fixed in the mounting threaded holes by a plurality of fastening bolts 12; one end of two pairs of water-carrying plates 13 are respectively movably inserted into the slots 8, and are respectively located between the overflow shells 11; two pairs of overflow assemblies 14 are respectively detachably arranged on the overflow shells 11.

[0023] As a preferred solution, further, the overflow assembly 14 includes a displacement cylinder 141, a manual adjustment tube 142, an adjustment thread block 143, a spring 144, a push rod 145, a valve tube 146 and a pair of first nuts 147; the displacement cylinder 141 is a cylinder structure without a left side wall, and the front and rear side walls near the middle are symmetrically provided with drainage grooves 5, the outer walls of the left and right ends of the displacement cylinder 141 are provided with first oblique threads, one end of the manual adjustment tube 142 is fixedly welded to the right side wall of the displacement cylinder 141, and the inner wall of the manual adjustment tube 142 is provided with a second oblique thread, and the adjustment thread block 143 is movably rotated. It is connected to the manual adjustment tube 142, and a hexagonal groove 4 is provided on the right side wall of the adjusting threaded hole side wall. One end of the spring 144 is fixedly connected to the left side wall of the adjusting threaded hole block and is movably embedded in the manual adjustment tube 142. One end of the push rod 145 is fixedly connected to the other end of the spring 144, and the other end of the push rod 145 movably penetrates the right side wall of the displacement cylinder 141. The valve tube 146 is a cavity structure, and one end of the valve tube 146 is fixedly connected to the other end of the push rod 145 and is movably embedded in the displacement cylinder 141. The first nut 147 is detachably screwed on the left and right side walls of the displacement cylinder 141.

[0024] As a preferred solution, further, both ends of the displacement cylinder 141 can be movably inserted into the mounting holes of the overflow housing 11 , and are fixed by a first nut 147 , and the first nut 147 is located outside the overflow housing 11 .

[0025] As a preferred solution, further, the main structure 2 includes a lower bottom cover 21, an upper bottom cover 22, a spiral drum 23 and a second nut 24; the lower bottom cover 21 is a semicircular concave T-shaped structure, and the diameter of the right end is larger than the diameter of the left end. A plurality of limit grooves 9 are arranged along the upper wall of the lower bottom cover 21 near the left end, a separation plate is arranged inside the lower bottom cover 21 near the left end, and the lower walls of the left and right ends of the lower bottom cover 21 are both provided with solid phase ports and liquid phase ports. A first plug ring 3 corresponding to the sealing groove 7 is arranged inside the lower bottom cover 21 near the right end, and the upper bottom cover 22 has the same structure as the lower bottom cover 21, and the upper bottom cover 22 The lower wall is provided with a limit block 10 corresponding to the limit groove 9 and a second plug ring corresponding to the first plug ring 3. The upper bottom cover 22 can be removably buckled on the lower bottom cover 21 and is relatively sealed. The spiral drum 23 is a cavity structure, and a spiral blade is provided on the middle outer wall, and a discharge port is provided near the two spiral blades. The two ends of the spiral drum 23 are respectively movable through the left and right side walls of the upper bottom cover 22 and the lower bottom cover 21, and the right end of the spiral drum 23 is connected to the inner wall. The second nut 24 is removably screwed on the spiral drum 23 near the right end, and is located inside the right end of the lower bottom cover 21.

[0026] As a preferred solution, further, the overflow housing 11 is movably mounted on the right end of the spiral drum 23 and is located inside the right end of the first shell.

[0027] As a preferred solution, further, the overflow housing 11 is fixed by a second nut 24, and the sealing groove 7 is movably mounted on the first plug-in ring 3 and the second plug-in ring.

[0028] As a preferred solution, further, the upper bottom cover 22 and the lower bottom cover 21 are relatively buckled and can slide alternately.

[0029] Here’s how it works: The overflow shell 11 in the overflow structure 1 is mounted on the spiral drum 23 in the main structure 2, and is fixed by the second nut 24; the spiral drum 23 can be inserted into the lower bottom cover 21, so that the overflow shell 11 is located in the lower bottom cover 21 at the end with a larger diameter; at the same time, the sealing groove 7 of one of the overflow shells 11 is mounted on the first insert ring 3 of the lower bottom cover 21 and fixed; then the upper bottom cover 22 is staggered with the lower bottom cover 21, and the limit block 10 is inserted into the limit groove 9, and the crossover can be carried out. The second insert ring in the upper bottom cover 22 is slidably fitted with the first insert ring 3, and inserted into the sealing groove 7 to complete the fitting installation, and then the lower bottom cover 21 and the upper bottom cover 22 are relatively fixed; before installation and use, a hexagonal wrench can be inserted into the hexagonal groove 4, and the adjusting thread block 143 can be rotated to move the adjusting thread block 143 in the manual adjustment tube 142, and the valve tube 146 on the push rod 145 can be pulled by the spring 144 to move, so that the valve tube 146 moves in the displacement cylinder 141, and the relative The size of the opening of the drainage groove 5 on the side wall of the displacement cylinder 141 is adjusted to adjust the drainage flow rate; and in use, if the internal separated liquid phase is too large and the pressure at one end of the liquid phase is too large, then the valve tube 146 will be forced to move, squeeze the spring 144, open the drainage groove 5 to increase the water outlet speed and relieve pressure; (Note: when the overflow assembly 14 is installed, when the displacement cylinder 141 is fixed by the first nut 147, it is necessary to make the drainage groove 5 on one side correspond to the drainage port 6); when the overflow structure 1 rotates with the spiral drum 23, a certain amount of liquid discharged through the drainage groove 5 is directly thrown out through the drainage port 6 to be discharged, further accelerating the discharge flow rate; at the same time, the liquid discharged from the drainage port 6 on the other side of the displacement cylinder 141 will be deposited in the space between the two overflow shells 11 that are relatively buckled by the fastening bolts 12, and with the rotation, the liquid is driven to rotate with the help of the water-carrying plate 13 fixed in the slot 8, and is thrown out through the drainage port 6 with the action of centrifugal force, which also increases the discharge flow rate of the separated liquid.

[0030] 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 PLC brine soaking circulation control system, characterized in that: The brine soaking unit comprises a soaking pool and a hanging basket arranged in the soaking pool for placing the Taihe braised duck to be soaked; A brine circulation unit, comprising a circulation pump and a circulation pipeline connecting the circulation pump and the soaking tank, for circulating the brine in the system; A solid-liquid classification device is arranged on the brine circulation pipeline to separate the solid and liquid of the brine and remove impurities in the brine; A heating and temperature control unit is used to heat the brine and control the temperature of the brine within a set range; The PLC control unit is connected to the brine circulation unit, the solid-liquid classification device, the heating temperature control unit and various sensors. It is used to receive sensor signals and control each unit according to preset control logic.

2. A PLC brine soaking circulation control system according to claim 1, characterized in that: The solid-liquid separation device comprises: It comprises an overflow structure (1), wherein the overflow structure (1) is detachably arranged in a main structure (2); The overflow structure (1) comprises an overflow shell (11), a fastening bolt (12), a water plate (13) and an overflow assembly (14); the overflow shells (11) are all circular bowl-shaped structures, and a first set of holes is opened in the middle of the lower wall; a top ring matching the first set of holes is arranged on the lower wall of one of the overflow shells (11), and a circular sealing groove (7) is opened on the lower wall of the overflow shell (11); mounting holes are equidistantly arranged on the lower wall of the overflow shell (11), and are respectively located outside the set of holes; drainage openings (6) are equidistantly arranged along the upper wall of the overflow shell (11), and correspond to the mounting holes respectively; Slots (8) are equidistantly provided along the upper wall of the overflow housing (11), and the slots (8) are respectively located between the drain ports (6) and correspond to each other. Through mounting threaded holes are equidistantly provided along the upper wall of the overflow housing (11), and are respectively located on both sides of the slots (8) between the drain ports (6). The overflow housing (11) can be relatively snap-fitted and fixed by being screwed into the mounting threaded holes with the fastening bolts (12). One end of the water-carrying plate (13) is movably inserted into the slots (8) and is respectively located between the overflow housings (11). The overflow assembly (14) is detachably mounted on the overflow housing (11).

3. A PLC brine soaking circulation control system according to claim 2, characterized in that: The overflow assembly (14) comprises a displacement cylinder (141), a manual adjustment tube (142), an adjustment thread block (143), a spring (144), a push rod (145), a valve tube (146) and a first nut (147); The displacement cylinder (141) is a cylinder structure without a left side wall, and the front and rear side walls near the middle are symmetrically provided with drainage grooves (5). The outer side walls of the left and right ends of the displacement cylinder (141) are provided with first oblique threads. One end of the manual adjustment tube (142) is fixedly welded to the right side wall of the displacement cylinder (141), and the inner side wall of the manual adjustment tube (142) is provided with a second oblique thread. The adjustment thread block (143) is movably screwed into the manual adjustment tube (142), and the right side wall of the side wall of the adjustment thread hole is provided with a hexagonal groove (4). One end of the spring (144) is fixedly welded to the right side wall of the displacement cylinder (141). The valve tube (146) is fixedly connected to the left side wall of the adjusting threaded hole block and movably embedded in the manual adjusting tube (142); one end of the pushing rod (145) is fixedly connected to the other end of the spring (144), and the other end of the pushing rod (145) movably penetrates the right side wall of the displacement cylinder (141); the valve tube (146) is a hollow structure; one end of the valve tube (146) is fixedly connected to the other end of the pushing rod (145) and movably embedded in the displacement cylinder (141); the first nut (147) is detachably screwed to the left and right side walls of the displacement cylinder (141).

4. A PLC brine soaking circulation control system according to claim 3, characterized in that: Both ends of the displacement cylinder (141) are respectively able to movably penetrate the mounting holes of the overflow housing (11) and are mounted and fixed by means of a first nut (147), and the first nut (147) is located outside the overflow housing (11).

5. A PLC brine soaking circulation control system according to claim 4, characterized in that: When the valve tube (146) is moved by force, the spring (144) is compressed, thereby opening the drainage groove (5) to increase the water discharge speed and relieve pressure.

6. A PLC brine soaking circulation control system according to claim 5, characterized in that: The main structure (2) comprises a lower bottom cover (21), an upper bottom cover (22), a spiral drum (23) and a second nut (24); The lower bottom cover (21) is a semicircular concave T-shaped structure, and the diameter of the right end is larger than that of the left end. A plurality of limit grooves (9) are arranged on the upper wall of the lower bottom cover (21) near the left end. A separation plate is arranged inside the lower bottom cover (21) near the left end. The lower walls of the left and right ends of the lower bottom cover (21) are both provided with a solid phase port and a liquid phase port. A first insert ring (3) corresponding to the sealing groove (7) is arranged inside the lower bottom cover (21) near the right end. The upper bottom cover (22) has the same structure as the lower bottom cover (21), and a limit block (9) corresponding to the limit groove (9) is arranged on the lower wall of the upper bottom cover (22). 10) and a second insert ring corresponding to the first insert ring (3), the upper bottom cover (22) can be detachably fastened to the lower bottom cover (21), the spiral drum (23) is a cavity structure, and a spiral blade is arranged on the outer wall of the middle part, and a discharge port is arranged near the two spiral blades, the two ends of the spiral drum (23) are respectively movably penetrated through the left and right side walls of the upper bottom cover (22) and the lower bottom cover (21), and the right end of the spiral drum (23) is connected to the inner wall, and the second nut (24) is detachably screwed on the spiral drum (23) near the right end, and is located inside the right end of the lower bottom cover (21).

7. A PLC brine soaking circulation control system according to claim 6, characterized in that: The overflow shells (11) are movably mounted on the right ends of the spiral drums (23) and are located inside the right end of the first shell.

8. A PLC brine soaking circulation control system according to claim 7, characterized in that: The overflow housing (11) is fixed in position by a second nut (24), and the sealing groove (7) is movably sleeved on the first insert ring (3) and the second insert ring.

9. A PLC brine soaking circulation control system according to claim 8, characterized in that: The upper bottom cover (22) and the lower bottom cover (21) are buckled relative to each other and can slide alternately.

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