Plate-and-frame filter press for stevioside production

Abstract

The utility model relates to the technical field of stevioside production, in particular to a plate-and-frame filter press for stevioside production, which comprises a box body, a filter plate and a connecting unit, the connecting unit comprises a trapezoidal plate, a square frame, a sealing plate, a rotating shaft, a fixing pin, a wedging pad, a rotating rudder, an extrusion assembly and a material receiving assembly, the filter plate is arranged on the inner side wall of the box body, and the square frame is arranged on the inner side wall of the box body. In actual use, a stevioside raw material is squeezed through the squeezing assembly, juice drops into a cavity formed by the box body and the trapezoidal plate from the filtering plate, then residues are collected through the material collecting assembly, a rotating rudder is held after use for a period of time, the rotating rudder rotates to drive a fixing pin to rotate, and the fixing pin is driven to be parallel to a square frame; and the mounting mode is opposite to the dismounting mode, so that the condition that the filter plate is blocked is avoided, the normal production of stevioside is ensured, and the fatigue strength of workers is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of stevia production technology, and in particular to a plate and frame filter press for stevia production. Background Technology

[0002] Plate and frame filter presses were first used in chemical dehydration machinery. In the current stevia production process, due to the adsorption properties of stevia, a layer of stevia residue will adhere to the surface of the plate and frame after use. If not cleaned for a long time, it will solidify on the plate and frame, affecting the performance and efficiency of the plate and frame filter press.

[0003] A prior art patent application with publication number CN 209033847U discloses a plate and frame filter press for stevia production, including a housing, a first filter screen, and a second filter screen. The housing is connected to a baffle plate with a feeding hole. A support plate is provided between the baffle plate and the inner wall of the housing. A fixing plate is provided on the support plate. The two support plates are fitted with a plate frame. The housing has a water storage tank and a material storage tank, both of which are connected to the interior of the housing. This device is easy to operate and can easily clean the residues attached to the plate frame and the fixing plate, preventing them from solidifying on the plate frame and the fixing plate, thus improving the filtration effect, increasing working efficiency, and extending service life.

[0004] However, in the aforementioned prior art, the filter screen is easily clogged by stevia raw materials, making it inconvenient for workers to clean it and reducing the production efficiency of stevia. Utility Model Content

[0005] The purpose of this invention is to provide a plate and frame filter press for stevia production, which aims to solve the problem in the prior art that the filter screen is easily clogged by stevia raw materials, making it inconvenient for workers to clean and reducing the production efficiency of stevia.

[0006] To achieve the above objectives, this utility model provides a plate and frame filter press for stevia production, comprising a housing, a filter plate, and a connecting unit. The connecting unit includes a trapezoidal plate, a square frame, a sealing plate, a rotating shaft, a fixing pin, a fitting pad, a rotating rudder, an extrusion assembly, and a receiving assembly. The filter plate is disposed on the inner wall of the housing. The connecting unit is connected to both the housing and the filter plate. The trapezoidal plate is fixedly connected to the housing and located on the inner wall of the housing. The trapezoidal plate has a cross-shaped hole that slides with the square frame. The housing has a sliding hole that slides with the square frame. The filter plate is fixedly connected to the square frame and located on the inner side wall of the square frame. The mating pad is fixedly connected to the square frame and located on one side of the square frame. The sealing plate is fixedly connected to the mating pad and located on one side of the mating pad. The sealing plate and the square frame each have a round hole, which is rotatably engaged with the rotating shaft. The fixing pin is fixedly connected to the rotating shaft and located on the outer side wall of the rotating shaft. The square frame and the box body each have a rotating groove, which is slidably engaged with the fixing pin. The extrusion assembly is connected to the box body. The material receiving assembly is connected to both the box body and the trapezoidal plate.

[0007] The extrusion assembly includes a movable plate, a connecting frame, and a mounting plate. The mounting plate is fixedly connected to the housing and located on the outer side wall of the housing. The movable plate is slidably connected to the housing and located on the inner side wall of the housing, and the movable plate is in contact with the trapezoidal plate. The connecting frame is fixedly connected to the movable plate and located on one side of the movable plate.

[0008] The extrusion assembly further includes a slide rod, which is fixedly connected to the movable plate and located on one side of the movable plate, and the slide rod is slidably engaged with the box body.

[0009] The material receiving assembly includes a scraper, a side plate, and a connecting rod. The scraper contacts the filter plate and is located above the filter plate. The filter plate is adapted to the housing. The connecting rod is fixedly connected to the scraper and is located on one side of the scraper. The side plate is fixedly connected to the connecting rod and is located on the outer side wall of the connecting rod. The side plate is slidably engaged with the trapezoidal plate.

[0010] The material receiving assembly further includes a fixed rod and a rotating frame. The fixed rod is fixedly connected to the trapezoidal plate and located on one side of the trapezoidal plate. The rotating frame is rotatably connected to the fixed rod and located on the outer side wall of the fixed rod, and the rotating frame is in contact with the side plate.

[0011] This utility model discloses a plate and frame filter press for stevia production. In actual use, the extrusion assembly presses the stevia raw material, causing the juice to drip from the filter plate into the chamber formed by the housing and the trapezoidal plate. Then, the collection assembly collects the residue. After a period of use, the rotating rudder is held to rotate the fixing pin, driving the fixing pin parallel to the square frame. Then, the sealing plate is pulled to remove the square frame for cleaning. The installation method is the reverse of the disassembly method. This method avoids clogging of the filter plate, ensures normal stevia production, and effectively reduces the fatigue of the workers. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the plate and frame filter press for stevia production according to this utility model.

[0014] Figure 2 This is a cross-sectional view of the plate and frame filter press for stevia production according to this utility model.

[0015] Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point A.

[0016] Figure 4 This is a top view of the plate and frame filter press for stevia production according to this utility model.

[0017] Figure 5 This is the utility model Figure 4 BB line section view.

[0018] 101-Box body, 102-Filter plate, 103-Trapezoidal plate, 104-Square frame, 105-Sealing plate, 106-Rotating shaft, 107-Fixing pin, 108-Matching pad, 109-Rotating rudder, 110-Moving plate, 111-Connecting frame, 112-Mounting plate, 113-Sliding rod, 114-Scraper, 115-Side plate, 116-Connecting rod, 117-Fixing rod, 118-Rotating frame, 119-Cross-shaped hole, 120-Sliding hole, 121-Round hole, 122-Rotating groove, 123-Cylinder. Detailed Implementation

[0019] Please see Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the plate and frame filter press for stevia production according to this utility model. Figure 2 This is a sectional view of the plate and frame filter press for stevia production according to this utility model. Figure 3This is the utility model Figure 2 Enlarged view of the local structure at point A. Figure 4 This is a top view of the plate and frame filter press for stevia production according to this utility model. Figure 5 This is the utility model Figure 4 BB line section view.

[0020] This utility model provides a plate and frame filter press for stevia production, including a housing 101, a filter plate 102, and a connecting unit. The connecting unit includes a trapezoidal plate 103, a square frame 104, a sealing plate 105, a rotating shaft 106, a fixing pin 107, a fitting pad 108, a rotating rudder 109, an extrusion assembly, and a receiving assembly. The extrusion assembly includes a moving plate 110, a connecting frame 111, a mounting plate 112, and a sliding rod 113. The receiving assembly includes a scraper 114, a side plate 115, a connecting rod 116, a fixing rod 117, and a rotating frame 118. The trapezoidal plate 103 has a cross-shaped hole 119, the housing 101 has a sliding hole 120, the sealing plate 105 and the square frame 104 each have a round hole 121, and the square frame 104 and the housing 101 each have a rotating groove 122.

[0021] The filter plate 102 is disposed on the inner side wall of the housing 101, and the connecting unit is connected to the housing 101 and the filter plate 102 respectively; the trapezoidal plate 103 is fixedly connected to the housing 101 and located on the inner side wall of the housing 101, the trapezoidal plate 103 has a cross-shaped hole 119, the cross-shaped hole 119 is slidably engaged with the square frame 104, the housing 101 has a sliding hole 120, the sliding hole 120 is slidably engaged with the square frame 104, the filter plate 102 is fixedly connected to the square frame 104 and located on the inner side wall of the square frame 104, and the fitting pad 108 is fixedly connected to the square frame 104. Located on one side of the square frame 104, the sealing plate 105 is fixedly connected to the fitting pad 108 and located on one side of the fitting pad 108. The sealing plate 105 and the square frame 104 each have a round hole 121, which is rotatably engaged with the rotating shaft 106. The fixing pin 107 is fixedly connected to the rotating shaft 106 and located on the outer side wall of the rotating shaft 106. The square frame 104 and the box body 101 each have a rotating groove 122, which is slidably engaged with the fixing pin 107. The extrusion assembly is connected to the box body 101, and the receiving assembly is connected to the box body 101 and the trapezoidal plate 103 respectively.

[0022] In this embodiment, the extrusion assembly is used to press the stevia raw material, causing the juice to drip from the filter plate 102 into the cavity formed by the housing 101 and the trapezoidal plate 103. The residue is then collected by the collection assembly. After a period of use, the rotating rudder 109 is held to rotate the fixing pin 107, causing it to be parallel to the square frame 104. Then, the sealing plate 105 is pulled to remove the square frame 104 for cleaning. The installation method is the reverse of the disassembly method. This method avoids clogging of the filter plate 102, ensuring normal stevia production and effectively reducing worker fatigue.

[0023] Furthermore, the mounting plate 112 is fixedly connected to the housing 101 and located on the outer side wall of the housing 101, the movable plate 110 is slidably connected to the housing 101 and located on the inner side wall of the housing 101, and the movable plate 110 contacts the trapezoidal plate 103, the connecting frame 111 is fixedly connected to the movable plate 110 and located on one side of the movable plate 110.

[0024] In this embodiment, the cylinder 123 is fixed to the mounting plate 112 and its output end is connected to the connecting frame 111. The controller is clicked to start the cylinder 123, which moves against the moving plate 110 to press the stevia raw material, saving manpower and improving production efficiency.

[0025] Furthermore, the slide rod 113 is fixedly connected to the moving plate 110 and is located on one side of the moving plate 110, and the slide rod 113 is slidably engaged with the housing 101.

[0026] In this embodiment, the slide bar 113 is used to improve the stability of the sliding of the moving plate 110 and avoid wobbling.

[0027] Furthermore, the scraper 114 contacts the filter plate 102 and is located above the filter plate 102, and the filter plate 102 is adapted to the housing 101. The connecting rod 116 is fixedly connected to the scraper 114 and is located on one side of the scraper 114. The side plate 115 is fixedly connected to the connecting rod 116 and is located on the outer side wall of the connecting rod 116. The side plate 115 is slidably engaged with the trapezoidal plate 103.

[0028] In this embodiment, holding the connecting rod 116 causes the scraper 114 to move, driving the scraper 114 to transport the pressed raw material on the filter plate 102 to one side of the trapezoidal plate 103, making it easier for workers to collect.

[0029] Furthermore, the fixed rod 117 is fixedly connected to the trapezoidal plate 103 and is located on one side of the trapezoidal plate 103. The rotating frame 118 is rotatably connected to the fixed rod 117 and is located on the outer side wall of the fixed rod 117. The rotating frame 118 is in contact with the side plate 115.

[0030] In this embodiment, the cooperation between the fixing rod 117 and the trapezoidal plate 103 facilitates the worker to lock the side plate 115, preventing the side plate 115 from shifting during the pressing process.

[0031] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A plate and frame filter press for stevia production, comprising a housing and filter plates, wherein the filter plates are disposed on the inner side wall of the housing, characterized in that, It also includes a connecting unit, which is connected to the housing and the filter plate respectively; The connecting unit includes a trapezoidal plate, a square frame, a sealing plate, a rotating shaft, a fixing pin, a mating pad, a rotating rudder, an extrusion assembly, and a receiving assembly. The trapezoidal plate is fixedly connected to the housing and located on the inner side wall of the housing. The trapezoidal plate has a cross-shaped hole that slides with the square frame. The housing has a sliding hole that slides with the square frame. The filter plate is fixedly connected to the square frame and located on the inner side wall of the square frame. The mating pad is fixedly connected to the square frame and located on one side of the square frame. The sealing plate is fixedly connected to the mating pad and located on one side of the mating pad. The sealing plate and the square frame each have a round hole that rotatably engages with the rotating shaft. The fixing pin is fixedly connected to the rotating shaft and located on the outer side wall of the rotating shaft. The square frame and the housing each have a rotating groove that slides with the fixing pin. The extrusion assembly is connected to the housing. The receiving assembly is connected to both the housing and the trapezoidal plate.

2. The plate and frame filter press for stevia production as described in claim 1, characterized in that, The extrusion assembly includes a movable plate, a connecting frame, and a mounting plate. The mounting plate is fixedly connected to the housing and located on the outer side wall of the housing. The movable plate is slidably connected to the housing and located on the inner side wall of the housing, and the movable plate is in contact with the trapezoidal plate. The connecting frame is fixedly connected to the movable plate and located on one side of the movable plate.

3. The plate and frame filter press for stevia production as described in claim 2, characterized in that, The extrusion assembly also includes a slide bar, which is fixedly connected to the movable plate and located on one side of the movable plate, and the slide bar is slidably engaged with the box body.

4. The plate and frame filter press for stevia production as described in claim 3, characterized in that, The material receiving assembly includes a scraper, a side plate, and a connecting rod. The scraper contacts the filter plate and is located above the filter plate. The filter plate is adapted to the housing. The connecting rod is fixedly connected to the scraper and is located on one side of the scraper. The side plate is fixedly connected to the connecting rod and is located on the outer side wall of the connecting rod. The side plate is slidably engaged with the trapezoidal plate.

5. The plate and frame filter press for stevia production as described in claim 4, characterized in that, The receiving assembly also includes a fixed rod and a rotating frame. The fixed rod is fixedly connected to the trapezoidal plate and located on one side of the trapezoidal plate. The rotating frame is rotatably connected to the fixed rod and located on the outer side wall of the fixed rod, and the rotating frame is in contact with the side plate.

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