Automatic high efficiency filter press

Abstract

The present invention belongs to the technical field of equipment for filtering suspended matter from liquid, and discloses an automated high-efficiency press filter, comprising a guide rail, a barrel slidably connected to the guide rail, and a displacement cylinder for driving the barrel to slide, and also comprising a pressing oil cylinder located above the guide rail near one side of the displacement cylinder, a pressing block being fixed at the bottom of the pressing oil cylinder; the barrel comprises an inner barrel and an outer barrel, the inner barrel is provided with a plurality of filtering holes, and the outer barrel is connected with a liquid outlet pipe, which is a hose. The present invention solves the problem that the prior art cannot meet the cleanliness requirements of drug production.

Description

Technical Field

[0001] The invention belongs to the technical field of equipment for filtering suspended matter from liquid, and in particular relates to an automatic high-efficiency squeeze filter. Background Art

[0002] During the production process of many drugs and chemicals, impurities will float in the liquid, so it is necessary to screen out the impurities. Traditional filtration uses centrifugal screening, but this method can only screen out some impurities with larger particle sizes, while impurities and suspended matter with smaller particle sizes cannot be effectively screened out. Therefore, a horizontal press is usually used to filter suspended matter. The internal structure of the horizontal press is complex, so it is inconvenient to clean the inside. The production of drugs and chemicals has high requirements for cleanliness, and this method cannot meet the use requirements. Based on this, the inventor has developed a squeeze filter with higher cleanliness and formed an automated and efficient squeeze filter. Summary of the invention

[0003] The present invention is intended to provide an automated high-efficiency filter press to solve the problem that the prior art cannot meet the requirements of drug production on filtering effect and cleanliness.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automated high-efficiency squeeze filter, comprising a guide rail, a material barrel slidably connected to the guide rail, and a displacement cylinder for driving the material barrel to slide, and also comprising a pressing cylinder located above the guide rail close to one side of the displacement cylinder, a pressing block being fixed to the bottom of the pressing cylinder; the material barrel comprises an inner barrel and an outer barrel, a plurality of filter holes are provided on the inner barrel, a liquid outlet pipe is connected to the outer barrel, and the liquid outlet pipe is a hose.

[0005] The technical principle of this technical solution:

[0006] The liquid to be filtered is introduced into the inner barrel, and the displacement cylinder is used to drive the barrel to slide. When the barrel slides to the bottom of the pressing cylinder, the pressing cylinder is started, and the pressing block is driven downward by the pressing cylinder to squeeze the liquid, so that the liquid is discharged from the filter hole into the space between the inner barrel and the outer barrel, and then discharged through the liquid outlet pipe. The filtered residue remains in the inner barrel.

[0007] Beneficial effects of this technical solution:

[0008] 1. By setting up a pressing method to press the liquid, compared with the centrifugal filter, it can quickly filter and separate the liquid and impurities, thereby improving the filtration efficiency;

[0009] 2. The barrel structure in the technical solution is simple, and only includes an outer barrel, an inner barrel, and a filter hole arranged on the inner barrel. Therefore, after squeezing and filtering, it is easy to clean, and there is no dead corner inside, which can ensure the high cleanliness of the barrel and meet the needs of pharmaceutical processing;

[0010] 3. This technical solution uses a displacement cylinder to drive the barrel to move, and cooperates with a pressing cylinder to achieve automatic operation without manual operation, reducing the contact between workers and the material liquid, thereby ensuring high cleanliness of the preparation process.

[0011] Furthermore, it also includes an ejection hydraulic cylinder located below the splitting and joining track.

[0012] Beneficial effect: When the barrel moves to the bottom of the pressing cylinder, the ejection hydraulic cylinder is started to support the barrel, and then the material liquid is squeezed and filtered. The ejection hydraulic cylinder can give the barrel a supporting force, reducing the force of the barrel on the guide rail, thereby reducing the probability of damage to the guide rail and extending the service life of the guide rail.

[0013] Furthermore, a support plate is fixed on the driving shaft of the ejection hydraulic cylinder.

[0014] Beneficial effect: Providing a support plate can increase the force-bearing area of ​​the barrel and improve the stability of the support.

[0015] Furthermore, two guide rails are provided, and both guide rails include a fixed rail and a splitting and combining rail close to the displacement cylinder.

[0016] Beneficial effect: By setting the splitting and combining track, the splitting and combining track can be moved when the pressing cylinder is running, thereby preventing the splitting and combining track from being subjected to pressure, thereby preventing the splitting and combining track from being damaged due to large force.

[0017] Furthermore, it also includes a support platform located between the splitting and combining rails and the ejection hydraulic cylinder, the displacement cylinder and the barrel are connected by a hinge, and the drive shaft of the ejection hydraulic cylinder passes through the support platform and extends above the support platform.

[0018] Beneficial effect: Setting up the support platform can support the barrel during the squeezing and filtering, provide sufficient and stable supporting force for the barrel, and thus improve the squeezing and filtering effect.

[0019] Furthermore, it also includes two separation and combination cylinders located on both sides of the two separation and combination tracks, the separation and combination cylinders are perpendicular to the separation and combination tracks, and the driving shafts of the two separation and combination cylinders are respectively fixed to the two separation and combination tracks.

[0020] Beneficial effect: The separation and combination cylinder is provided to drive the separation and combination track to move, thereby realizing the smooth movement of the barrel.

[0021] Furthermore, it also includes a positioning block located between the splitting and combining track and the displacement cylinder, and the driving shaft of the displacement cylinder passes through the positioning block.

[0022] Beneficial effect: The positioning block can determine the moving position of the barrel. When the barrel moves to abut against the positioning block, the position of the barrel is determined.

[0023] Furthermore, the positioning block is arc-shaped on one side facing the separation and combination track.

[0024] Beneficial effect: The positioning block is arc-shaped, which enables the side wall of the barrel to be just inserted, thereby improving the positioning effect.

[0025] Furthermore, the inner barrel may be detachably connected with a filter bag.

[0026] Beneficial effect: The filter bag can make the impurities remaining after filtration located in the filter bag, which is convenient for handling, and the filter bag can perform preliminary filtration on the feed liquid.

[0027] Furthermore, the bottom of the outer barrel is provided with rollers cooperating with the guide rails.

[0028] Beneficial effect: rollers are arranged at the bottom of the outer barrel to facilitate the movement of the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0030] Figure 2 is a top view of embodiment 1 of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the material barrel in Example 1 of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the support plate in Example 2 of the present invention;

[0033] Figure 5 Schematic diagram of the structure of the one-way valve in Example 2 of the present invention. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The figure marks in the drawings of the specification include: guide rail 1, fixed rail 11, splitting and combining rail 12, guide block 121, splitting and combining cylinder 2, material barrel 3, outer barrel 31, inner barrel 32, filter hole 321, liquid outlet pipe 33, roller 34, displacement cylinder 4, positioning block 5, pressing cylinder 6, pressing block 61, support platform 7, groove 71, ejection hydraulic cylinder 8, support plate 81, negative pressure chamber 811, piston 812, pressure relief hole 813, fixed plate 82, air storage chamber 821, connecting rod 822, rubber suction cup 823, connecting pipe 824, one-way valve 9, tapered sleeve 91, sealing ball 92, magnetic counterweight block 921, and stopper 93.

[0036] Embodiment 1:

[0037] Automatic high-efficiency filter press, basically as attached Figure 1As shown, it includes a bracket, on which two horizontally arranged guide rails 1 are arranged, and the guide rails 1 include a fixed track 11 on the left and a split track 12 on the right. The fixed track 11 and the split track 12 can be located on the same horizontal straight line. Figure 2 As shown, two guide blocks 121 perpendicular to the splitting and combining rails 12 are also provided on the right side of the bracket. The two splitting and combining rails 12 are fixed on the two guide blocks 121 respectively. The guide blocks 121 are slidably connected to the bracket in a direction perpendicular to the splitting and combining rails 12 (i.e. Figure 2 The bracket is also provided with two separation and combination cylinders 2 respectively located on the upper and lower sides of the two separation and combination rails 12, and the driving shafts of the separation and combination cylinders 2 are respectively welded to the two guide blocks 121, so that by starting the separation and combination cylinders 2, the separation and combination rails 12 can be driven to slide, thereby realizing the closing (connecting to the fixed rails 11 and located on the same straight line) and separation (located on both sides of the two fixed rails 11) of the two separation and combination rails 12.

[0038] It also includes a barrel 3 that slides laterally along the guide rail 1, combined with Figure 3 As shown, the barrel 3 includes an outer barrel 31 and an inner barrel 32 arranged in the outer barrel 31. A filtering cavity is formed between the outer barrel 31 and the inner barrel 32. The bottom of the outer barrel 31 is also provided with a liquid outlet pipe 33 connected to the filtering cavity, and the liquid outlet pipe 33 is a hose. The bottom of the outer barrel 31 is provided with a roller 34 that can be slidably connected to the guide rail 1. Four rollers 34 are provided, and two rollers 34 located on the same side are slidably connected to the same guide rail 1. The inner barrel 32 is provided with a plurality of filter holes 321, and the aperture of the filter holes 321 can be set according to actual needs. The inner barrel 32 can also be detachably connected with a filter bag. A plurality of hooks are circumferentially provided on the outer wall of the outer barrel 31, and a hanging rope that cooperates with the hooks is provided on the filter bag, so that the filter bag can be fixed.

[0039] In this embodiment, the inner barrel 32 is detachably connected to the outer barrel 31. Specifically, the inner barrel 32 includes a filter portion at the bottom and a mounting portion at the top, and the filter hole 321 is provided on the filter portion. The diameter of the mounting portion is consistent with the inner diameter of the outer barrel 31, the diameter of the filter portion is smaller than the diameter of the mounting portion, and the filter portion and the mounting portion are coaxially arranged. A buckle is provided at the top of the mounting portion, and a fixing buckle that cooperates with the buckle is provided on the side wall of the outer barrel 31. In this embodiment, there are three buckles and three fixing buckles, which are evenly distributed on the top of the mounting portion and the side wall of the outer barrel 31. The specific structure of the fixing buckle and the buckle are not disclosed in this embodiment, which is a prior art and is the same as the connection method between the barrel and the lid of a commonly used insulation barrel.

[0040] A displacement cylinder 4 is also provided on the bracket on the right side of the guide rail 1. The drive shaft of the displacement cylinder 4 faces left, and the drive shaft of the displacement cylinder 4 is connected to the right side of the shell through a hinge, so that when the displacement cylinder 4 is started, it can drive the barrel 3 to slide horizontally along the guide rail 1; and because it is connected by a hinge, the barrel 3 can be displaced vertically. The specific hinge connection method is that a pin is provided on the right side of the barrel, and a hinge is hinged on the drive shaft of the displacement cylinder 4, and the hinge is sleeved on the pin. A positioning block 5 is also provided on the bracket between the guide rail 1 and the displacement cylinder 4. The left side of the positioning block 5 is an arc surface, and the inner arc surface faces left.

[0041] A pressing cylinder 6 is provided on the bracket above the separation and combination guide rail 1 , and a pressing block 61 is welded to the bottom end of the driving shaft of the pressing cylinder 6 . The pressing block 61 is circular, and the diameter of the pressing block 61 is consistent with the inner diameter of the inner barrel 32 .

[0042] A support platform 7 and an ejection hydraulic cylinder 8 are also provided on the bracket below the separation and combination guide rail 1. The ejection hydraulic cylinder 8 is located below the support platform 7, and the drive shaft of the ejection hydraulic cylinder 8 passes through the support platform 7 and is vertically slidably connected to the support platform 7. A support plate 81 is welded on the drive shaft of the ejection hydraulic cylinder 8. The support plate 81 is a steel plate, and the support plate 81 is located above the support platform 7. The support platform 7 is a steel plate platform, and a groove 71 is provided on the top of the support platform 7 to match the support plate 81. The support platform 7 is also provided with a limiting groove to match the roller 34.

[0043] The specific implementation process is as follows:

[0044] When filtering, the material liquid is injected into the filter bag, and the filter bag is fixed on the barrel 3, and then the displacement cylinder 4 is started to drive the barrel 3 to move to the right. During the movement, the barrel 3 gradually moves from the fixed track 11 to the separation track 12. After the barrel 3 moves to abut against the positioning block 5, the displacement cylinder 4 is closed, and the ejection hydraulic cylinder 8 is started again, so that the support plate 81 gradually moves upward, and after contacting the bottom of the barrel 3, the barrel 3 is lifted upward. Then the separation and combination cylinder 2 is started, so that the separation and combination cylinder 2 drives the two separation and combination tracks 12 to move in opposite directions, so that the two separation and combination tracks 12 are separated.

[0045] Then, the ejection hydraulic cylinder 8 is moved downward, driving the barrel 3 to move downward (since the barrel 3 is connected to the displacement cylinder 4 by a hinge, the barrel 3 can move downward), so that the barrel 3 falls on the support platform 7 and is supported by the support platform 7. At the same time, the pressing cylinder 6 is started, so that the pressing cylinder 6 drives the pressing block 61 to move downward, squeezing the liquid in the inner barrel 32, so that the liquid enters the filter cavity from the filter hole 321 on the inner barrel 32, and then is discharged through the liquid outlet pipe 33. The remaining impurities and suspended matter remain in the filter bag.

[0046] After the squeezing and filtering is completed, the pressing cylinder 6 is moved upward to realize the withdrawal of the pressing block 61 from the inner barrel 32. The ejection hydraulic cylinder 8 is started to drive the barrel 3 to move upward, and after the barrel 3 moves to the top of the separation and combination track 12, the separation and combination cylinder 2 is started to close the separation and combination track 12, so that the separation and combination track 12 and the fixed track 11 are located on the same straight line. Then the ejection hydraulic cylinder 8 drives the barrel 3 to move downward, and the roller 34 on the barrel 3 is located on the separation and combination track 12. The displacement cylinder 4 is started, so that the displacement cylinder 4 pushes the barrel 3 to move to the left. After the barrel 3 moves to the fixed track 11, the filter bag is taken out and the barrel 3 is cleaned. The whole process is an intelligent operation. After the discharge is completed, manual labor will not come into contact with the liquid material, reducing the probability of contamination of the liquid material.

[0047] When the material barrel 3 needs to be cleaned after the filtration is completed, the outer barrel 31 and the inner barrel 32 can be disassembled for cleaning, which is convenient to clean and has no dead corners, thereby ensuring high cleanliness for the next squeezing and filtration.

[0048] In order to achieve a more intelligent operation, an intelligent system may be provided to control the start and stop of the displacement cylinder 4 , the ejection hydraulic cylinder 8 , the separation and combination cylinder 2 and the pressing cylinder 6 .

[0049] Embodiment 2:

[0050] The difference between Example 2 and Example 1 is that Figure 4 As shown, a negative pressure chamber 811 is provided in the support plate 81, a piston 812 is vertically slidably connected in the negative pressure chamber 811, a spring is welded between the piston 812 and the bottom of the negative pressure chamber 811, and a pressure relief hole 813 connected to the negative pressure chamber 811 is provided at the bottom of the support plate 81. Two connecting rods 822 that penetrate the top of the support plate 81 and are vertically slidably connected to the support plate 81 are fixed to the top of the piston 812, and a fixing plate 82 is also included, and the top ends of the two connecting rods 822 are welded to the bottom of the fixing plate 82.

[0051] A plurality of rubber suction cups 823 are provided on the top of the fixed plate 82. The number of rubber suction cups 823 is set according to actual needs. In this embodiment, 6 rubber suction cups 823 are provided, and the rubber suction cups 823 are arranged in a 2X3 array. An air storage cavity 821 is provided in the fixed plate 82. Six air inlet holes are provided on the top of the fixed plate 82. A through hole connected to the air inlet hole is provided at the bottom of the rubber suction cup 823, and the through holes on the rubber suction cup 823 correspond to the air inlet holes on the fixed plate 82 one by one. A connecting pipe 824 connected to the air storage cavity 821 is provided at the bottom of the fixed plate 82. The bottom of the connecting pipe 824 passes through the support plate 81 and is connected to the negative pressure cavity 811. The connecting pipe 824 is a bellows.

[0052] A one-way valve 9 is provided in the connecting pipe 824. Figure 5As shown, the one-way valve 9 includes a conical sleeve 91, a sealing ball 92 and a stopper 93 arranged in sequence from top to bottom. The large diameter end of the conical sleeve 91 faces downward, the sealing ball 92 is located in the conical sleeve 91, and the sealing ball 92 can seal the conical sleeve 91. A spring is welded between the bottom of the sealing ball 92 and the stopper 93. A magnetic counterweight block 921 is arranged in the sealing ball 92, and an electromagnet is arranged in the stopper 93 that repel each other with the magnetic block after connecting to the power supply. A battery is fixed on the fixed plate 82, and two first conductive sheets are electrically connected at both ends of the battery, and two second conductive sheets are electrically connected at both ends of the electromagnet. The second conductive sheet is fixed on the top of the support plate 81, and the first conductive sheet is fixed on the bottom of the fixed plate 82, and the two second conductive sheets are respectively located below the two first conductive sheets. In this embodiment, the first conductive sheet and the second conductive sheet are not drawn.

[0053] The specific implementation process is as follows:

[0054] When the displacement cylinder 4 drives the barrel 3 to move rightward until it contacts the positioning block 5, the barrel 3 cannot move rightward any further, and the squeezing and filtering position of the barrel 3 is determined. At this time, the ejection hydraulic cylinder 8 drives the support plate 81 to move upward, and the support plate 81 drives the fixed plate 82 to move upward. After the rubber suction cup 823 on the fixed plate 82 is in contact with the bottom of the barrel 3, the support plate 81 is continuously moved upward, which squeezes the rubber suction cup 823, so that the gas between the rubber suction cup 823 and the bottom of the barrel 3 is squeezed into the gas storage chamber 821, and at this time, the sealing ball 92 moves downward under the action of the magnetic counterweight block 921, thereby introducing the gas into the negative pressure chamber 811. After the rubber suction cup 823 is in contact with the bottom of the barrel 3, the support plate 81 continues to move upward. At this time, under the action of the connecting rod 822, the piston 812 is squeezed, and the piston 812 gradually moves downward, thereby attracting the gas in the gas storage chamber 821; and after the bottom of the fixed plate 82 is in contact with the top of the support plate 81, the first conductive sheet is in contact with the second conductive sheet, thereby connecting the electromagnet with the battery, and the electromagnet generates a force that repels the magnetic counterweight 921, so that the sealing ball 92 moves upward to seal the conical sleeve 91, and at this time, the negative pressure on the rubber suction cup 823 is completed, so that the barrel 3 is stably fixed on the fixed plate 82, reducing the probability of the barrel 3 moving when it moves downward, resulting in the probability of the pressure block 61 and the barrel 3 being misaligned, so that the pressure effect is good. In addition, the fixed plate 82 is limited by the support plate 81 to avoid shaking during the movement.

[0055] For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of this patent and the practicality of the patent.

Claims

1. Automated high-efficiency filter press, characterized by: It includes a guide rail, a material barrel slidably connected to the guide rail, and a displacement cylinder for driving the material barrel to slide, and also includes a pressing oil cylinder located above the guide rail close to one side of the displacement cylinder, and a pressing block is fixed to the bottom of the pressing oil cylinder; the material barrel includes an inner barrel and an outer barrel, the inner barrel is provided with a plurality of filter holes, the outer barrel is connected with a liquid outlet pipe, the liquid outlet pipe is a hose, and also includes an ejection hydraulic cylinder located below the separation and combination track, a support plate is fixed on the driving shaft of the ejection hydraulic cylinder, a negative pressure chamber is provided in the support plate, a piston is provided in the negative pressure chamber, a spring is provided between the piston and the negative pressure chamber, a pressure relief hole connected to the negative pressure chamber is opened at the lower end of the support plate, and connecting rods that slide through the support plate are symmetrically provided at the upper end of the piston, a fixing plate is commonly provided at the top of the two connecting rods, and a plurality of rubber suction pipes are provided at the upper end of the fixing plate A plate, an air storage cavity is arranged in the fixed plate, a plurality of air inlet holes connected with the rubber suction cup are opened at the upper end of the fixed plate, a connecting pipe connected with the air storage cavity and the negative pressure cavity is arranged at the lower end of the fixed plate, a one-way valve is arranged in the connecting pipe, the one-way valve comprises a conical sleeve, a sealing ball and a stopper which are arranged in sequence from top to bottom, the sealing ball is arranged in the conical sleeve, a spring is arranged between the sealing ball and the stopper, the sealing ball is also provided with a magnetic counterweight block, an electromagnet which repel each other with the magnetic block after being connected with the power supply is arranged in the stopper, a battery is arranged at the upper end of the fixed plate, two first conductive sheets are electrically connected at both ends of the battery, two second conductive sheets are electrically connected at both ends of the electromagnet, the second conductive sheet is arranged at the upper end of the support plate, the first conductive sheet is arranged at the bottom of the fixed plate, and the two second conductive sheets are respectively located directly below the two first conductive sheets.

2. The automated high-efficiency filter press according to claim 1, characterized in that: Two guide rails are provided, and both guide rails include a fixed rail and a separation and combination rail close to the displacement cylinder.

3. The automated high-efficiency filter press according to claim 2, characterized in that: It also includes a support platform located between the separation and combination track and the ejection hydraulic cylinder. The displacement cylinder and the barrel are connected by a hinge. The drive shaft of the ejection hydraulic cylinder passes through the support platform and extends above the support platform.

4. The automated high-efficiency filter press according to claim 3, characterized in that: It also includes two separation and combination cylinders located on both sides of the two separation and combination tracks. The separation and combination cylinders are perpendicular to the separation and combination tracks, and the driving shafts of the two separation and combination cylinders are respectively fixed to the two separation and combination tracks.

5. The automated high-efficiency filter press according to claim 4, characterized in that: It also includes a positioning block located between the splitting and combining track and the displacement cylinder, and a driving shaft of the displacement cylinder passes through the positioning block.

6. The automated high-efficiency filter press according to claim 5, characterized in that: The side of the positioning block facing the separation and combination track is arc-shaped.

7. The automated high-efficiency filter press according to claim 6, characterized in that: The inner barrel is also detachably connected with a filter bag.

8. The automated high-efficiency filter press according to claim 7, characterized in that: The bottom of the outer barrel is also provided with rollers cooperating with the guide rails.

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