Multistage filter pressing device for medicinal soluble starch

Abstract

The utility model relates to the technical field of filter pressing devices, in particular to a multi-stage filter pressing device for medicinal soluble starch, which is characterized in that two-stage filter pressing is respectively performed when a piston rod of a hydraulic cylinder contracts and extends, multi-stage continuous filter pressing work can be performed, and the working efficiency is high. Comprising a left filter cartridge, a left water outlet pipe, a right filter cartridge and a right water outlet pipe, the filter further comprises a left filter pressing groove, a left piston assembly, a right filter pressing groove, a right piston assembly, a pressing rod and a support assembly, the left filter pressing groove is movably installed in the left filter cylinder, the left piston assembly is installed on the support assembly in a liftable mode and driven by a hydraulic cylinder, the right filter pressing groove is movably installed in the right filter cylinder, and the right piston assembly is installed on the support assembly in a liftable mode and driven by a hydraulic cylinder. The middle of the pressing rod is rotationally connected with the support assembly, one end of the pressing rod is in transmission connection with the left piston assembly through a first sliding groove and a first sliding pin, and the other end of the pressing rod is in transmission connection with the right piston assembly through a second sliding groove and a second sliding pin.

Description

Technical Field

[0001] The utility model relates to the technical field of filter pressing devices, in particular to a multi-stage filter pressing device for medicinal soluble starch. Background Technique

[0002] In the production process of medicinal soluble starch, it is necessary to filter out the moisture therein through a filter pressing device to obtain medicinal soluble starch with low water content. The Chinese utility model patent with the publication number CN218589831U in the prior art proposes a modified starch filter pressing device. During the use of this device, a filter cloth is laid in a filter pressing cylinder, and then the water-containing modified starch is placed in the filter pressing cylinder so that the modified starch is within the range covered by the filter cloth. Then, the pressing mechanism is controlled to press the modified starch, so that the modified starch is gradually dehydrated in the filter pressing cylinder, and the separated water enters the water collection cavity of the water collection tank through the lower end of the filter pressing cylinder, and then is discharged through a drain pipe, thereby realizing the dehydration of the modified starch and the subsequent drainage operation.

[0003] However, the above prior art only presses the soluble starch slurry in the filter pressing cylinder by pushing the pressing block body downward when the piston rod of the hydraulic cylinder extends downward, and cannot press the soluble starch slurry in other filter pressing cylinders when the piston rod of the hydraulic cylinder contracts and retracts upward, which is not convenient to achieve the multi-stage filter pressing effect and has a low working efficiency. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a multi-stage filter pressing device for medicinal soluble starch, which can perform two-stage filter pressing respectively when the piston rod of the hydraulic cylinder contracts and extends, can perform multi-stage continuous filter pressing work, and has a high working efficiency.

[0005] The utility model discloses a multi-stage filter press device for medicinal soluble starch, comprising a left filter cartridge, a left water outlet pipe, a right filter cartridge and a right water outlet pipe, wherein the left water outlet pipe is connected to the bottom of the left filter cartridge, and the right water outlet pipe is connected to the bottom of the right filter cartridge; the utility model also comprises a left filter press tank, a left piston assembly, a right filter press tank, a right piston assembly, a pressure rod and a support assembly, wherein the bottoms of the left filter cartridge and the right filter cartridge are connected via a pipeline, the left filter press tank is movably installed in the left filter cartridge, the left piston assembly is movably installed on the support assembly, the left piston assembly extends into the left filter press tank to filter the starch slurry therein, the left piston assembly is driven by a hydraulic cylinder, the right filter press tank is movably installed in the right filter cartridge, and the right piston assembly is movably installed on the support assembly The right piston assembly is on the frame assembly, and the right piston assembly extends into the right filter press tank to filter the starch slurry therein. The middle part of the pressure rod is rotatably connected to the bracket assembly, one end of the pressure rod is connected to the left piston assembly through a slide groove 1 and a slide pin 1, and the other end of the pressure rod is connected to the right piston assembly through a slide groove 2 and a slide pin 2. When working, the starch slurry with high water content is added to the right filter press tank, and the hydraulic cylinder raises the left piston assembly, and the left piston assembly rises from the left filter press tank. Due to the increase in the space between the bottom of the left filter cartridge and the left piston assembly, the pressure at the bottom of the left filter cartridge and the bottom of the right filter cartridge is reduced, so that the left piston assembly drives one end of the pressure rod to rise, and at the same time, the other end of the pressure rod pushes the right piston assembly to The hydraulic cylinder lowers the left piston assembly to the left filter press tank, and the left piston assembly enters the right filter press tank to filter the starch slurry with high water content, so that the water of the starch slurry with high water content is filtered to the bottom of the right filter cartridge through the filter hole 2 of the right filter press tank, and the starch slurry with low water content is obtained. Since the pressure at the bottom of the left filter cartridge and the bottom of the right filter cartridge is reduced, it is beneficial for the water in the right filter press tank to be filtered to the bottom of the right filter cartridge, and the squeezed water is discharged through the right water outlet pipe. After the left piston assembly is lifted to the outside above the left filter cartridge, the starch slurry with low water content obtained by filtering through the right filter press tank and the right piston assembly last time is added to the left filter press tank, and the hydraulic cylinder lowers the left piston assembly to allow the left piston assembly to enter the left filter press tank. The starch slurry with low water content is filter-filtered in the filter tank. During this process, the left piston assembly drives one end of the pressure rod to descend, and the other end of the pressure rod drives the right piston assembly to rise, so that the pressure at the bottom of the right filter cartridge and the bottom of the left filter cartridge is reduced, which is beneficial for the moisture of the starch slurry with low water content in the left filter pressure tank to be filtered to the bottom of the left filter cartridge and discharged through the left water outlet pipe. When the right piston assembly is lifted to the top of the right filter cartridge by the pressure rod, the starch slurry with low water content obtained by the pressure filter of the right piston assembly in the right filter pressure tank is taken out to prepare for the next level of pressure filtration. Compared with the prior art, in which the piston rod of the hydraulic cylinder is contracted and extended to perform two-stage pressure filtration respectively, it is convenient to perform multi-stage continuous pressure filtration and has high working efficiency.

[0006] Preferably, it also includes two ring seats, which are respectively installed on the lower inner walls of the left filter cartridge and the right filter cartridge, and the two ring seats respectively support the left filter pressure tank and the right filter pressure tank; the left filter pressure tank and the right filter pressure tank are respectively clamped on the two ring seats to realize the movable installation of the left filter pressure tank and the right filter pressure tank on the left filter cartridge and the right filter cartridge, thereby improving reliability.

[0007] Preferably, it further includes two sleeves, two locking bolts, two elastic hooks and two ring plates. The two sleeves are respectively sleeved on the upper parts of the left piston assembly and the right piston assembly. The two sleeves are respectively locked on the left piston assembly and the right piston assembly through two locking bolts. The upper ends of the two elastic hooks are respectively connected to the two sleeves, and hooks are arranged at the lower ends of the two elastic hooks. Ring plates are arranged at the upper edges of the left pressure filter tank and the right pressure filter tank. Notches are arranged on the two ring plates, and the notches are matched with the two elastic hooks. When the left piston assembly is pressed into the bottom of the left pressure filter tank and the right piston assembly is pressed into the bottom of the right pressure filter tank, the lower hooks of the two elastic hooks respectively hook the two ring plates. When the left piston assembly and the right piston assembly respectively rise above the left filter cylinder and the right filter cylinder, the two elastic hooks and the two ring plates cooperate to lift the left pressure filter tank and the right pressure filter tank above the left filter cylinder and the right filter cylinder. Rotate the left pressure filter tank and the right pressure filter tank so that the hooks of the two elastic hooks respectively break out from the notches of the two ring plates, and the starch slurry in the left pressure filter tank and the right pressure filter tank can be cleaned and recovered. Since the left pressure filter tank and the right pressure filter tank have the same structure, the left pressure filter tank and the right pressure filter tank can rotate between the left filter cylinder and the right filter cylinder, reducing one step of cleaning work and improving work efficiency.

[0008] Preferably, it further includes two sealing rings. The two sealing rings are respectively installed on the upper parts of the outer walls of the left pressure filter tank and the right pressure filter tank, and the two sealing rings are respectively in sliding contact with the inner walls of the left filter cylinder and the right filter cylinder. The two sealing rings respectively improve the sealing performance between the left pressure filter tank and the inner wall of the left filter cylinder and between the right pressure filter tank and the inner wall of the right filter cylinder, so that when the left pressure filter tank rises following the left piston assembly and the right pressure filter tank rises following the right piston assembly, the pressure at the bottoms of the left filter cylinder and the right filter cylinder drops more, which is beneficial to improving the pressure filtration efficiency.

[0009] Preferably, it further includes two solenoid valves I and solenoid valve II. Two solenoid valves I are respectively installed on the left water outlet pipe and the right water outlet pipe, and solenoid valve II is installed on the pipeline between the left filter cylinder and the right filter cylinder. When the left piston assembly descends, solenoid valve II closes the pipeline between the left filter cylinder and the right filter cylinder, the solenoid valve I on the right water outlet pipe closes, and the solenoid valve I on the left water outlet pipe opens, so that the air at the bottom of the left filter cylinder is discharged through the left water outlet pipe, and the pressure at the bottom of the right filter cylinder is reduced. After the left piston assembly descends to the bottom, the solenoid valve I on the left water outlet pipe closes, and solenoid valve II opens the pipeline between the left filter cylinder and the right filter cylinder, so that a low-pressure area is formed in the lower part of the left pressure filter tank, facilitating the rapid pressure filtration and falling of the water in the left pressure filter tank. Similarly, when the right piston assembly descends, it is convenient for the water in the right pressure filter tank to rapidly pressure filter and fall, improving work efficiency.

[0010] Preferably, it further includes a first pressure reducing valve and a second pressure reducing valve. The first pressure reducing valve is installed in the left outlet pipe, and the second pressure reducing valve is installed in the right outlet pipe. By setting the first pressure reducing valve and the second pressure reducing valve, the air and water in the left filter cartridge and the right filter cartridge are slowly discharged through the left outlet pipe and the right outlet pipe, avoiding the danger caused by the ejection of air and water and improving safety.

[0011] Preferably, the bracket assembly includes a column, an upper mounting frame, a slider, a screw rod, and a shaft rod. The column is vertically installed between the left filter cartridge and the right filter cartridge. The upper mounting frame is installed at the top of the column. The hydraulic cylinder of the left piston assembly is installed on the upper mounting frame. The upper part of the right piston assembly is slidably connected to the upper mounting frame. A chute is provided on the column. The slider is slidably installed in the chute. The screw rod is rotatably installed in the chute of the column. The screw rod is rotationally screwed to the slider. The shaft rod is installed on the slider. The middle part of the pressing rod is rotatably connected to the shaft rod. The upper mounting frame slidably supports the left piston assembly and the right piston assembly. Rotating the screw rod causes the slider to rise and fall in the chute, thereby adjusting the height of the middle part of the shaft rod and the pressing rod, achieving different tilting effects at both ends of the pressing rod, and having good practicability.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the piston rod of the hydraulic cylinder contracts and extends, two-stage pressure filtration is respectively carried out, which is convenient for multi-stage continuous pressure filtration work and has high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic axonometric partial sectional structural diagram of the present utility model;

[0015] Figure 3 is a schematic axonometric structural diagram of the present utility model;

[0016] Figure 4 is a schematic structural diagram of structures such as the left pressure filtration tank, the left piston assembly, the sleeve, the locking bolt, the elastic hook, and the ring plate;

[0017] Figure 5 is a schematic structural diagram of structures such as the bracket assembly;

[0018] Figure 6 is a schematic structural diagram of structures such as the right filter cartridge, the right outlet pipe, and the ring seat.

[0019] Markings in the attached figure: 1, left filter cartridge; 2, left water outlet pipe; 3, right filter cartridge; 4, right water outlet pipe; 5, left filter pressure tank; 6, left piston assembly; 7, right filter pressure tank; 8, right piston assembly; 9, pressure rod; 10, ring seat; 11, sleeve; 12, locking bolt; 13, elastic hook; 14, ring plate; 15, sealing ring; 16, solenoid valve one; 17, solenoid valve two; 18, pressure reducing valve one; 19, pressure reducing valve two; 20, column; 21, upper mounting frame; 22, slider; 23, screw; 24, shaft. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, on the basis of Example 1, a medicinal soluble starch multi-stage filter press device includes a left filter cartridge 1, a left water outlet pipe 2, a right filter cartridge 3 and a right water outlet pipe 4, the left water outlet pipe 2 is connected to the bottom of the left filter cartridge 1, and the right water outlet pipe 4 is connected to the bottom of the right filter cartridge 3; it also includes a left filter press tank 5, a left piston assembly 6, a right filter press tank 7, a right piston assembly 8, a pressure rod 9 and a bracket assembly, the bottoms of the left filter cartridge 1 and the right filter cartridge 3 are connected by a pipeline, the left filter press tank 5 is movably installed in the left filter cartridge 1, the left piston assembly 6 is limply installed on the bracket assembly, the left piston assembly 6 extends into the left filter press tank 5 to filter the starch slurry therein, the left piston assembly 6 is driven by a hydraulic cylinder, the right filter press tank 7 is movably installed in the right filter cartridge 3, the right piston assembly 8 is limply installed on the bracket assembly, and the right piston assembly 8 extends into the right filter press tank 5. The starch slurry in the filter press tank 7 is filtered, the middle part of the pressure rod 9 is rotatably connected to the bracket assembly, one end of the pressure rod 9 is transmission-connected to the left piston assembly 6 through a slide groove 1 and a slide pin 1, and the other end of the pressure rod 9 is transmission-connected to the right piston assembly 8 through a slide groove 2 and a slide pin 2; it also includes two ring seats 10, the two ring seats 10 are respectively mounted on the lower inner walls of the left filter cartridge 1 and the right filter cartridge 3, and the two ring seats 10 respectively support the left filter press tank 5 and the right filter press tank 7; it also includes two solenoid valves 16 and solenoid valves 17, two solenoid valves 16 are respectively mounted on the left water outlet pipe 2 and the right water outlet pipe 4, and a solenoid valve 2 17 is installed on the pipeline between the left filter cartridge 1 and the right filter cartridge 3; it also includes a pressure reducing valve 18 and a pressure reducing valve 2 19, a pressure reducing valve 18 is installed in the left water outlet pipe 2, and a pressure reducing valve 2 19 is installed in the right water outlet pipe 4.

[0023] During operation, the left filter press tank 5 and the right filter press tank 7 are respectively clamped on two ring seats 10, realizing the movable installation of the left filter press tank 5 and the right filter press tank 7 on the left filter cylinder 1 and the right filter cylinder 3. The starch slurry with high water content is added into the right filter press tank 7. The hydraulic cylinder raises the left piston assembly 6, and the left piston assembly 6 rises from the left filter press tank 5. Since the space between the bottom of the left filter cylinder 1 and the left piston assembly 6 increases, the pressure at the bottom of the left filter cylinder 1 and the bottom of the right filter cylinder 3 decreases, causing one end of the pressure rod 9 driven by the left piston assembly 6 to rise. At the same time, the other end of the pressure rod 9 pushes the right piston assembly 8 downward, making the right piston assembly 8 enter the right filter press tank 7 to filter the starch slurry with high water content. The water in the starch slurry with high water content is filtered through the second filter hole of the right filter press tank 7 to the bottom of the right filter cylinder 3, obtaining the starch slurry with low water content. Since the pressure reduction at the bottom of the left filter cylinder 1 and the bottom of the right filter cylinder 3 is beneficial to the filtration of the water in the right filter press tank 7 to the bottom of the right filter cylinder 3, the filtered water is discharged through the right water outlet pipe 4. After the left piston assembly 6 is lifted above the outside of the left filter cylinder 1, the starch slurry with low water content obtained by filtering through the right filter press tank 7 and the right piston assembly 8 last time is added into the left filter press tank 5. The hydraulic cylinder lowers the left piston assembly 6, making the left piston assembly 6 enter the left filter press tank 5 to filter the starch slurry with low water content. During this process, the solenoid valve II 17 closes the pipeline between the left filter cylinder 1 and the right filter cylinder 3, the solenoid valve I 16 on the right water outlet pipe 4 closes, and the solenoid valve I 16 on the left water outlet pipe 2 opens, allowing the air at the bottom of the left filter cylinder 1 to be discharged through the left water outlet pipe 2. The left piston assembly 6 drives one end of the pressure rod 9 to descend, and the other end of the pressure rod 9 drives the right piston assembly 8 to rise, reducing the pressure at the bottom of the right filter cylinder 3. After the left piston assembly 6 descends to the bottom, the solenoid valve I 16 on the left water outlet pipe 2 closes, and the solenoid valve II 17 opens the pipeline between the left filter cylinder 1 and the right filter cylinder 3, forming a low-pressure area at the lower part of the left filter press tank 5, facilitating the rapid filtration and falling of the water in the left filter press tank 5. Opening the solenoid valve I 16 of the left water outlet pipe 2 discharges the water through the left water outlet pipe 2. When the right piston assembly 8 is lifted above the right filter cylinder 3 by the pressure rod 9, the starch slurry with low water content obtained by filtering the right filter press tank 7 by the right piston assembly 8 is taken out for the next-stage filtration. Compared with the prior art, when the piston rod of the hydraulic cylinder contracts and extends, two-stage filtration is respectively carried out, facilitating multi-stage continuous filtration work with high working efficiency. By setting the pressure reducing valve I 18 and the pressure reducing valve II 19, the air and water in the left filter cylinder 1 and the right filter cylinder 3 are slowly discharged through the left water outlet pipe 2 and the right water outlet pipe 4, avoiding the danger caused by the jet of air and water and improving safety.

[0024] Embodiment 2

[0025] As Figures 1 to 4As shown in the figure, on the basis of Embodiment 1, it further includes two sleeves 11, two locking bolts 12, two elastic hooks 13 and two ring plates 14. The two sleeves 11 are respectively sleeved on the upper parts of the left piston assembly 6 and the right piston assembly 8. The two sleeves 11 are respectively locked on the left piston assembly 6 and the right piston assembly 8 through two locking bolts 12. The upper ends of the two elastic hooks 13 are respectively connected to the two sleeves 11. Hooks are arranged at the lower ends of the two elastic hooks 13. Ring plates 14 are arranged at the upper edges of the left pressure filter tank 5 and the right pressure filter tank 7. Notches are arranged on the two ring plates 14, and the notches match the two elastic hooks 13. It further includes two sealing rings 15. The two sealing rings 15 are respectively installed on the upper parts of the outer walls of the left pressure filter tank 5 and the right pressure filter tank 7. The two sealing rings 15 are respectively in sliding contact with the inner walls of the left filter cylinder 1 and the right filter cylinder 3.

[0026] When the left piston assembly 6 is pressed into the bottom of the left pressure filter tank 5 and the right piston assembly 8 is pressed into the bottom of the right pressure filter tank 7, the lower hooks of the two elastic hooks 13 respectively hook the two ring plates 14. When the left piston assembly 6 and the right piston assembly 8 are respectively raised above the left filter cylinder 1 and the right filter cylinder 3, the two elastic hooks 13 and the two ring plates 14 cooperate to lift the left pressure filter tank 5 and the right pressure filter tank 7 above the left filter cylinder 1 and the right filter cylinder 3. Rotate the left pressure filter tank 5 and the right pressure filter tank 7 so that the hooks of the two elastic hooks 13 respectively disengage from the notches of the two ring plates 14, and the starch slurry in the left pressure filter tank 5 and the right pressure filter tank 7 can be cleaned and recovered. Since the structures of the left pressure filter tank 5 and the right pressure filter tank 7 are the same, the left pressure filter tank 5 and the right pressure filter tank 7 can rotate between the left filter cylinder 1 and the right filter cylinder 3, reducing one step of cleaning work and improving work efficiency. The two sealing rings 15 respectively improve the sealing performance between the inner wall of the left pressure filter tank 5 and the left filter cylinder 1 and between the inner wall of the right pressure filter tank 7 and the right filter cylinder 3, so that when the left pressure filter tank 5 follows the left piston assembly 6 to rise and the right pressure filter tank 7 rises with the right piston assembly 8, the bottom pressure of the left filter cylinder 1 and the right filter cylinder 3 drops more, which is beneficial to improving the pressure filtration efficiency.

[0027] Embodiment 3

[0028] As Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown in the figure, on the basis of Embodiment 1, the bracket assembly includes a column 20, an upper mounting frame 21, a slider 22, a screw 23 and a shaft rod 24. The column 20 is vertically installed between the left filter cartridge 1 and the right filter cartridge 3. The upper mounting frame 21 is installed at the top of the column 20. The hydraulic cylinder of the left piston assembly 6 is installed on the upper mounting frame 21. The upper part of the right piston assembly 8 is slidably connected to the upper mounting frame 21. A chute is provided on the column 20. The slider 22 is slidably installed in the chute. The screw 23 is rotatably installed in the chute of the column 20. The screw 23 is rotationally screwed to the slider 22. The shaft rod 24 is installed on the slider 22. The middle part of the pressure rod 9 is rotatably connected to the shaft rod 24.

[0029] The upper mounting frame 21 provides sliding support for the left piston assembly 6 and the right piston assembly 8. Rotate the screw 23 to make the slider 22 rise and fall in the chute, thereby adjusting the height of the middle part of the shaft rod 24 and the pressure rod 9, and realizing different inclination effects at both ends of the pressure rod 9, which has good practicability.

[0030] As Figures 1 to 6 As shown in the figure, when a medicinal soluble starch multi-stage pressure filtration device of the present invention is working, first, a high-water-content starch slurry is added to the right pressure filtration tank 7. The solenoid valve 16 of the left water outlet pipe 2 is closed, the solenoid valve 17 is closed, and the solenoid valve 16 of the right water outlet pipe 4 is opened. Then, the left piston assembly 6 drives the left pressure filtration tank 5 to rise in the left filter cartridge 1 through the elastic hook 13 hanging on the ring plate 14. Since the space between the bottom of the left filter cartridge 1 and the left piston assembly 6 increases, the pressure at the bottom of the left filter cartridge 1 and the bottom of the right filter cartridge 3 decreases, causing one end of the pressure rod 9 driven by the left piston assembly 6 to rise, and at the same time causing the other end of the pressure rod 9 to push the right piston assembly 8 downward, so that the right piston assembly 8 enters the right pressure filtration tank 7 to pressure-filter the high-water-content starch slurry. The water in the high-water-content starch slurry is pressure-filtered through the second filter hole of the right pressure filtration tank 7 to the bottom of the right filter cartridge 3, and the air and water at the bottom of the right filter cartridge 3 are discharged through the right water outlet pipe 4. Then, the right pressure filtration tank 7 is pressed into the bottom of the right piston assembly 8. The solenoid valve 16 of the right water outlet pipe 4 is closed, and the solenoid valve 17 is opened, so that the pressure at the bottom of the right filter cartridge 3 decreases, and the water in the right pressure filtration tank 7 is pumped out at low pressure to obtain a low-water-content starch slurry. Open the solenoid valve 16 of the right water outlet pipe 4, and the filtered water is discharged through the right water outlet pipe 4. After the left piston assembly 6 is lifted above the outside of the left filter cartridge 1, the left pressure filtration tank 5 is removed to clean and recycle the starch after secondary pressure filtration therein. Finally, the right pressure filtration tank 7 containing the low-water-content starch slurry after primary pressure filtration is installed on the ring seat 10 of the left filter cartridge 1. Similarly, the hydraulic cylinder lowers the left piston assembly 6 so that the left piston assembly 6 enters the right pressure filtration tank 7 to perform secondary pressure filtration on the low-water-content starch slurry.

[0031] The main functions achieved by the present invention are:

[0032] 1. When the piston rod of the hydraulic cylinder contracts and extends, two-stage pressure filtration is carried out respectively, enabling multi-stage continuous pressure filtration work with high working efficiency.

[0033] 2. By generating a low-pressure area, the efficiency of water filtration during pressure filtration is improved.

[0034] 3. The filter cartridge after pressure filtration can be automatically taken out, improving the working efficiency.

[0035] A multi-stage pressure filtration device for medicinal soluble starch of the present utility model has an installation method, a connection method, or a setting method that are all common mechanical methods, and any implementation that can achieve its beneficial effects can be carried out; the left filter cartridge 1, right filter cartridge 3, left pressure filtration tank 5, left piston assembly 6, right pressure filtration tank 7, right piston assembly 8, ring seat 10, sleeve 11, locking bolt 12, elastic hook 13, sealing ring 15, solenoid valve 1 16, solenoid valve 2 17, pressure reducing valve 1 18, pressure reducing valve 2 19, slider 22, screw rod 23, and shaft rod 24 of the multi-stage pressure filtration device for medicinal soluble starch of the present utility model are purchased on the market, and those skilled in the art only need to install and operate according to the attached instruction manual, without the need for creative labor from those skilled in the art.

[0036] All the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A multi-stage pressure filtration device for medicinal soluble starch, comprising a left filter cylinder (1), a left water outlet pipe (2), a right filter cylinder (3) and a right water outlet pipe (4). The left water outlet pipe (2) is communicated with the bottom of the left filter cylinder (1), and the right water outlet pipe (4) is communicated with the bottom of the right filter cylinder (3); characterized in that, The invention also comprises a left filter press tank (5), a left piston assembly (6), a right filter press tank (7), a right piston assembly (8), a pressure rod (9) and a support assembly. The bottoms of the left filter cartridge (1) and the right filter cartridge (3) are connected via a pipeline. The left filter press tank (5) is movably mounted in the left filter cartridge (1). The left piston assembly (6) is movably mounted on the support assembly. The left piston assembly (6) extends into the left filter press tank (5) to filter the starch slurry therein. The left piston assembly (6) is driven by a hydraulic cylinder. The right filter press tank (7) is movably mounted in the right filter cartridge (3). The right piston assembly (8) is movably mounted on the support assembly. The right piston assembly (8) extends into the right filter press tank (7) to filter the starch slurry therein. The middle part of the pressure rod (9) is rotatably connected to the support assembly. One end of the pressure rod (9) is connected to the left piston assembly (6) through a first slide groove and a first slide pin. The other end of the pressure rod (9) is connected to the right piston assembly (8) through a second slide groove and a second slide pin.

2. The multi-stage pressure filtration device for medicinal soluble starch according to claim 1, characterized in that, It also comprises two ring seats (10), which are respectively mounted on the lower inner walls of the left filter cartridge (1) and the right filter cartridge (3), and the two ring seats (10) respectively support the left filter pressure tank (5) and the right filter pressure tank (7).

3. The multi-stage pressure filtration device for medicinal soluble starch according to claim 1, characterized in that, It also comprises two sleeves (11), two locking bolts (12), two elastic hooks (13) and two ring plates (14). The two sleeves (11) are respectively sleeved on the upper parts of the left piston assembly (6) and the right piston assembly (8). The two sleeves (11) are respectively locked on the left piston assembly (6) and the right piston assembly (8) by the two locking bolts (12). The upper ends of the two elastic hooks (13) are respectively connected to the two sleeves (11). The lower ends of the two elastic hooks (13) are both provided with hooks. The upper edges of the left filter press tank (5) and the right filter press tank (7) are both provided with ring plates (14). Notches are both provided on the two ring plates (14), and the notches match the two elastic hooks (13).

4. The multi-stage pressure filtration device for medicinal soluble starch according to claim 3, wherein It also includes two sealing rings (15), which are respectively installed on the upper parts of the outer walls of the left filter press tank (5) and the right filter press tank (7), and the two sealing rings (15) are respectively in sliding contact with the inner wall of the left filter cartridge (1) and the inner wall of the right filter cartridge (3).

5. A multi-stage pressure filtration device for medicinal soluble starch according to claim 1, characterized in that, It also includes two electromagnetic valves (16) and two electromagnetic valves (17). The two electromagnetic valves (16) are respectively installed on the left water outlet pipe (2) and the right water outlet pipe (4), and the electromagnetic valve (17) is installed on the pipeline between the left filter cartridge (1) and the right filter cartridge (3).

6. The multi-stage pressure filtration device for medicinal soluble starch according to claim 1, characterized in that, It also includes a pressure reducing valve 1 (18) and a pressure reducing valve 2 (19). The pressure reducing valve 1 (18) is installed in the left water outlet pipe (2), and the pressure reducing valve 2 (19) is installed in the right water outlet pipe (4).

7. A multi-stage pressure filtration device for medicinal soluble starch according to claim 1, characterized in that, The support assembly includes a vertical column (20), an upper mounting frame (21), a slider (22), a screw rod (23) and a shaft rod (24). The vertical column (20) is vertically installed between the left filter cartridge (1) and the right filter cartridge (3). The upper mounting frame (21) is installed at the top of the vertical column (20). The hydraulic cylinder of the left piston assembly (6) is installed on the upper mounting frame (21). The upper part of the right piston assembly (8) is slidably connected to the upper mounting frame (21). A chute is provided on the vertical column (20). The slider (22) is slidably installed in the chute. The screw rod (23) is rotatably installed in the chute of the vertical column (20). The screw rod (23) is rotationally and threadedly connected to the slider (22). The shaft rod (24) is installed on the slider (22). The middle part of the pressure rod (9) is rotationally connected to the shaft rod (24).

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