Floating type pressing mechanism of filter press

Abstract

The floating type pressing mechanism comprises a box body, a sealing door is hinged to the front face of the box body through a hinge, a steel wire filter screen and an activated carbon filter screen are fixedly connected to the inner wall of the box body in a sleeved mode respectively, a drainage pipe is fixedly communicated with the surface of one side of the box body, and an installation opening is formed in the upper surface of the box body. According to the offset protection device, when the pressing plate extrudes materials and inclines, the connection position of a piston rod of the servo electric cylinder and the pressing plate is protected, damage is avoided, the service life is prolonged, the materials before filter pressing are preliminarily stirred and cut, the materials after filter pressing are cut, and the materials after filter pressing are cut off. And the materials are continuously and stably fed, so that the effect of improving the material filter pressing efficiency and quality is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a floating pressing mechanism for a filter press. Background Art

[0002] Human beings have a very close relationship with chemical industry, which has spread to all aspects of life. In modern life, we cannot do without chemical products almost anytime and anywhere, from material life such as clothing, food, housing and transportation to spiritual life such as culture, art and entertainment. Chemical products are needed to serve them. The chemical industry generally uses a lot of chemical raw materials. For example, chemical materials such as copper salts or lithium salts need to be separated from the solid by a filter press during production. The filter press uses a special filter medium to apply a certain pressure to the object, so that the liquid can be dialyzed out. It is a mechanical equipment, which is a commonly used solid-liquid separation equipment. It was used in chemical production in the early 18th century and is still widely used in chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramics and environmental protection industries.

[0003] For example, a filter pressing mechanism for a downward filter press disclosed in a Chinese patent document (publication number: CN219558870U) stirs and cuts the solid material to a certain extent through a stirring device to facilitate subsequent filter pressing. However, the material is cut and transported by spirally distributed stirring rods. Due to the gaps between the stirring rods, when copper salt and lithium salt are crushed and transported, the crushed material particles are small, the transportation efficiency is unstable, and it is even difficult to transport to the fixed cavity for filter pressing. In addition, the material falling through the discharge port will accumulate on one side of the filter screen, which makes it easy for the cylinder to drive the pressure plate downward. The connection between the pressure plate and one end of the cylinder is easily damaged due to uneven force. Utility Model Content

[0004] The purpose of the utility model is to provide a floating pressing mechanism for a filter press to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floating clamping mechanism for a filter press, comprising a box body, a sealing door is hingedly connected to the front of the box body through a hinge, a steel wire filter screen and an activated carbon filter screen are fixedly sleeved on the inner wall of the box body, a drainage pipe is fixedly connected to one side surface of the box body, a mounting opening is opened on the upper surface of the box body, and a servo electric cylinder is fixedly installed on the inner wall of the mounting opening;

[0006] A deviation protection device is provided at one end of the piston rod of the servo electric cylinder, and the deviation protection device includes a lifting plate, and the upper surface of the lifting plate is fixedly connected to one end of the piston rod of the servo electric cylinder.

[0007] Preferably, a pressure plate is movably sleeved on the inner wall of the box body, a first ball groove is provided at the center of the upper surface of the pressure plate, and a first sliding ball is slidably sleeved on the inner wall of the first ball groove.

[0008] Preferably, a first connecting rod is fixedly connected to the outer surface of the first sliding ball, one end of the first connecting rod is fixedly connected to the lower surface of the lifting plate, and the upper surface of the pressing plate is provided with second ball grooves distributed in a rectangular array.

[0009] Preferably, a second sliding ball is slidably sleeved on the inner wall of the second ball groove, a second connecting rod is fixedly connected to the outer surface of the second sliding ball, a reset sleeve distributed in a rectangular array is fixedly connected to the lower surface of the lifting plate, and one end of the second connecting rod extends to the interior of the reset sleeve.

[0010] Preferably, one end of the second connecting rod is fixedly connected to a retraction spring, one end of the retraction spring is fixedly connected to the inner top wall of the reset sleeve, one side surface of the box body is fixedly connected to a conveying sleeve, and one side surface of the conveying sleeve is provided with a through hole.

[0011] Preferably, one end of the through hole is connected to the inner wall of the box body, the outer surface of the conveying sleeve is fixedly connected to a feed hopper, a servo motor is fixedly installed on the other side surface of the conveying sleeve, and the output shaft of the servo motor is fixedly installed with a rotating shaft through a coupling.

[0012] Preferably, one end of the rotating shaft passes through and extends to the interior of the conveying sleeve, the outer surface of one end of the rotating shaft is installed with an inner wall of one side of the conveying sleeve through a bearing, the outer surface of the rotating shaft is respectively fixedly sleeved with a first spiral sheet and a second spiral sheet, the outer side surfaces of the first spiral sheet and the second spiral sheet are in contact with the inner wall of the conveying sleeve, and the outer surface of the rotating shaft is fixedly connected with cutting knives distributed in a ring array.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the offset protection device protects the connection between the servo electric cylinder piston rod and the pressing plate when the pressing plate is tilted when squeezing the material, thereby avoiding damage and increasing the service life. It also has the function of performing preliminary stirring and cutting of the material before filtration and continuous and stable feeding, thereby improving the efficiency and quality of material filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 A three-dimensional diagram of the box structure of a floating pressing mechanism of a filter press proposed by the utility model;

[0016] Figure 3This is a three-dimensional diagram of the conveying sleeve structure of a floating clamping mechanism of a filter press proposed by the utility model;

[0017] Figure 4 A three-dimensional diagram of the lifting plate structure of a floating pressing mechanism of a filter press proposed by the utility model;

[0018] Figure 5 A floating pressing mechanism for a filter press proposed by the utility model Figure 4 A magnified view of the structure in the middle.

[0019] In the figure: 1. box body; 2. sealing door; 3. wire filter; 4. activated carbon filter; 5. drain pipe; 6. servo electric cylinder; 7. lifting plate; 71. pressure plate; 72. first ball groove; 73. first sliding ball; 74. first connecting rod; 75. second ball groove; 76. second sliding ball; 77. second connecting rod; 78. reset sleeve; 79. retraction spring; 710. conveying sleeve; 711. through hole; 712. feed hopper; 713. servo motor; 714. rotating shaft; 715. first spiral sheet; 716. second spiral sheet; 717. cutting knife. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a floating pressing mechanism of a filter press, comprising a box body 1, a sealing door 2 is hingedly connected to the front of the box body 1 through a hinge, a steel wire filter screen 3 and an activated carbon filter screen 4 are fixedly sleeved on the inner wall of the box body 1, a drainage pipe 5 is fixedly connected to the surface of one side of the box body 1, an installation opening is opened on the upper surface of the box body 1, and a servo electric cylinder 6 is fixedly installed on the inner wall of the installation opening;

[0022] One end of the piston rod of the servo electric cylinder 6 is provided with a deviation protection device, and the deviation protection device includes a lifting plate 7, and the upper surface of the lifting plate 7 is fixedly connected to one end of the piston rod of the servo electric cylinder 6.

[0023] Furthermore, a pressure plate 71 is movably sleeved on the inner wall of the box body 1, a first ball groove 72 is provided at the center of the upper surface of the pressure plate 71, a first sliding ball 73 is slidably sleeved on the inner wall of the first ball groove 72, the sealing door 2 serves to facilitate the removal of the fixed material after the filtration, an observation window is provided on the surface of the sealing door 2, which serves to facilitate real-time observation, an electromagnetic valve is provided on the outer surface of the drain pipe 5 for controlling the flow of liquid, and a soft rubber block is provided on the outer surface of the pressure plate 71, so as to facilitate the displacement of the pressure plate 71 after uneven force is applied.

[0024] Furthermore, a first connecting rod 74 is fixedly connected to the outer surface of the first sliding ball 73, one end of the first connecting rod 74 is fixedly connected to the lower surface of the lifting plate 7, and a second ball groove 75 distributed in a rectangular array is opened on the upper surface of the pressure plate 71. The first connecting rod 74 serves to position the first sliding ball 73.

[0025] Furthermore, a second sliding ball 76 is slidably sleeved on the inner wall of the second ball groove 75, and a second connecting rod 77 is fixedly connected to the outer surface of the second sliding ball 76. The lower surface of the lifting plate 7 is fixedly connected to reset sleeves 78 distributed in a rectangular array, and one end of the second connecting rod 77 extends to the interior of the reset sleeve 78. One end of the second connecting rod 77 plays a role in small-amplitude swinging and telescopic movement in the reset sleeve 78.

[0026] Furthermore, one end of the second connecting rod 77 is fixedly connected to a retraction spring 79, one end of the retraction spring 79 is fixedly connected to the inner top wall of the resetting sleeve 78, one side surface of the box body 1 is fixedly connected to a conveying sleeve 710, and a through hole 711 is provided on one side surface of the conveying sleeve 710. The resetting elastic force of the retraction spring 79 drives the second connecting rod 77 to perform resetting movement and swing.

[0027] Furthermore, one end of the through hole 711 is connected to the inner wall of the box body 1, the outer surface of the conveying sleeve 710 is fixedly connected to the feed hopper 712, and the other side surface of the conveying sleeve 710 is fixedly installed with a servo motor 713. The output shaft of the servo motor 713 is fixedly installed with a rotating shaft 714 through a coupling. The through hole 711 serves to convey the pretreated material in the conveying sleeve 710 to the box body 1.

[0028] Furthermore, one end of the rotating shaft 714 passes through and extends to the interior of the conveying sleeve 710, and the outer surface of one end of the rotating shaft 714 is installed with an inner wall of one side of the conveying sleeve 710 through a bearing. The outer surface of the rotating shaft 714 is fixedly sleeved with a first spiral piece 715 and a second spiral piece 716, respectively. The outer surfaces of the first spiral piece 715 and the second spiral piece 716 are in contact with the inner wall of the conveying sleeve 710, and the outer surface of the rotating shaft 714 is fixedly connected with cutting knives 717 distributed in a circular array. The first spiral piece 715 and the second spiral piece 716 are used in combination to ensure stable and continuous conveying of materials. The cutting knives 717 of two adjacent groups can be arranged in a staggered manner to improve the crushing and mixing efficiency.

[0029] Through the offset protection device, when the pressure plate 71 is tilted when squeezing the material, the connection between the piston rod of the servo electric cylinder 6 and the pressure plate 71 is protected to avoid damage and increase the service life. It also has the function of performing preliminary stirring and cutting of the material before filtration and continuous and stable feeding, thereby improving the efficiency and quality of material filtration.

[0030] Working principle: Step 1, add the block copper salt material into the conveying sleeve 710 through the feed hopper 712, start the servo motor 713, and the servo motor 713 drives the first spiral blade 715, the second spiral blade 716 and the cutting knife 717 to rotate through the rotating shaft 714. After the material enters the conveying sleeve 710, it is first conveyed by the rotation of the first spiral blade 715, and the material is conveyed to the cutting knife 717 for crushing and stirring. Due to the subsequent rotation and feeding of the first spiral blade 715, the crushed material is squeezed into the second spiral blade 716, and the material is conveyed by the second spiral blade 716 to enter the box body 1 through the through hole 711 and fall above the wire filter 3;

[0031] Step 2: After the material is transported, the piston rod of the servo electric cylinder 6 is started to extend, and the extension of the piston rod of the servo electric cylinder 6 drives the lifting plate 7 to move downward. The downward movement of the lifting plate 7 drives the pressing plate 71 to move downward through the first connecting rod 74 and the first sliding ball 73, so that the pressing plate 71 performs filter pressing on the material. The liquid after filter pressing is filtered again through the activated carbon filter 4 and stored at the bottom of the box 1. The liquid can be discharged by opening the solenoid valve of the drain pipe 5.

[0032] Step three, when materials are piled up in one place causing uneven force on the pressure plate 71, the first sliding ball 73 slides in the first ball groove 72, and the pressure plate 71 is tilted through the cooperation of the first connecting rod 74. At the same time, multiple second sliding balls 76 and the second connecting rod 77 cooperate with the reset sleeve 78 to protect the pressure plate 71 from tilting, avoiding damage to the connection between the piston rod of the servo electric cylinder 6 and the pressure plate 71. When the piston rod of the servo electric cylinder 6 contracts and causes the pressure plate 71 to rise and reset, the pressure plate 71 is corrected and reset through the reset elastic force of the contraction spring.

[0033] 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 floating clamping mechanism for a filter press, comprising a housing (1), characterized in that: The front of the box (1) is hingedly connected to a sealed door (2); the inner wall of the box (1) is respectively fixedly sleeved with a steel wire filter (3) and an activated carbon filter (4); a side surface of the box (1) is fixedly connected to a drain pipe (5); the upper surface of the box (1) is provided with a mounting opening, and a servo electric cylinder (6) is fixedly mounted on the inner wall of the mounting opening; One end of the piston rod of the servo electric cylinder (6) is provided with a deviation protection device, and the deviation protection device comprises a lifting plate (7), and the upper surface of the lifting plate (7) is fixedly connected to one end of the piston rod of the servo electric cylinder (6).

2. The floating clamping mechanism of a filter press according to claim 1, characterized in that: A pressure plate (71) is movably sleeved on the inner wall of the box body (1), a first ball groove (72) is provided at the center of the upper surface of the pressure plate (71), and a first sliding ball (73) is slidably sleeved on the inner wall of the first ball groove (72).

3. A floating clamping mechanism for a filter press according to claim 2, characterized in that: The outer surface of the first sliding ball (73) is fixedly connected to a first connecting rod (74), one end of the first connecting rod (74) is fixedly connected to the lower surface of the lifting plate (7), and the upper surface of the pressing plate (71) is provided with second ball grooves (75) distributed in a rectangular array.

4. A floating pressing mechanism for a filter press according to claim 3, characterized in that: A second sliding ball (76) is slidably sleeved on the inner wall of the second ball groove (75), a second connecting rod (77) is fixedly connected to the outer surface of the second sliding ball (76), and a reset sleeve (78) distributed in a rectangular array is fixedly connected to the lower surface of the lifting plate (7), and one end of the second connecting rod (77) extends into the interior of the reset sleeve (78).

5. A floating pressing mechanism for a filter press according to claim 4, characterized in that: One end of the second connecting rod (77) is fixedly connected to a retraction spring (79), one end of the retraction spring (79) is fixedly connected to the inner top wall of the reset sleeve (78), and one side surface of the box body (1) is fixedly connected to a conveying sleeve (710), and one side surface of the conveying sleeve (710) is provided with a through hole (711).

6. A floating pressing mechanism for a filter press according to claim 5, characterized in that: One end of the through hole (711) is in communication with the inner wall of the box body (1); the outer surface of the conveying sleeve (710) is fixedly connected to a feed hopper (712); a servo motor (713) is fixedly mounted on the other side surface of the conveying sleeve (710); and the output shaft of the servo motor (713) is fixedly mounted with a rotating shaft (714) via a coupling.

7. A floating clamping mechanism for a filter press according to claim 6, characterized in that: One end of the rotating shaft (714) passes through and extends into the interior of the conveying sleeve (710); the outer surface of one end of the rotating shaft (714) is mounted on an inner wall of one side of the conveying sleeve (710) via a bearing; the outer surface of the rotating shaft (714) is respectively fixedly sleeved with a first spiral sheet (715) and a second spiral sheet (716); the outer surfaces of the first spiral sheet (715) and the second spiral sheet (716) are in contact with the inner wall of the conveying sleeve (710); and the outer surface of the rotating shaft (714) is fixedly connected with cutting knives (717) distributed in a ring array.

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