Improved roller press

Abstract

The utility model discloses an improved roller press which comprises a first compression roller and a second compression roller which are arranged on a machine frame, and the roller surfaces of the first compression roller and the second compression roller are arranged in a spaced close mode and rotate oppositely. Side clamping plates are arranged at the two ends of the whole two compression rollers in an abutting mode respectively, blocking baffles are arranged at the abutting gaps of the side ends of the two compression rollers and the side clamping plates in an abutting mode, and flange plates are arranged on the two end faces of the second compression roller; the blocking baffles are wear-resistant baffles B arranged on the inner sides of the flange plates, wear-resistant baffles C are arranged on the two end faces of the compression roller A, and the outer side faces of the wear-resistant baffles C and the inner side faces of the wear-resistant baffles B are arranged at intervals of 3-5 mm; a third arc-shaped notch is formed in the lower corner, close to one side of the second compression roller, of the second square side clamping plate; the radius of an arc notch corresponding circle of the third arc-shaped notch is equal to that of the second wear-resistant baffle; the arc-shaped notch III leans against the peripheral surface of the wear-resistant baffle II; the intersection point of the periphery of the second wear-resisting baffle and the periphery of the third wear-resisting baffle in the view direction of the first pressing roller shaft is not lower than the bottommost face of the second side clamping plate. The roller is durable and easy to maintain, stable in material pressure and larger in roller surface working area.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding machinery and relates to an improved roller press. Background Art

[0002] The roller press is a kind of grinding equipment. It contains two rollers, which are driven by two motors to rotate in opposite directions. The material is fed from the hopper above the two rollers through the side clamping plates used to limit the feeding area. The side ends of the two rollers and the gaps between the side clamping plates are pressed against each other to prevent the material from lateral pressure release. This can maintain a relatively constant material pressure. The rollers continuously squeeze the raw materials to crush them, and the powder falls into the receiving box from the bottom between the two rollers.

[0003] There are many specific structural forms of existing roller presses. Among them, the most common structural form is as follows Figure 1 、 Figure 2 , and refer to Figure 5 As shown, it includes a frame 3, a pressure roller A 1A and a pressure roller B 1B arranged on the frame 3, the roller surfaces of the pressure roller A 1A and the pressure roller B 1B are arranged close to each other and the upper roller surfaces rotate relative to each other; the two ends of the two pressure rollers are respectively provided with side clamps to limit the feeding area, and the gaps between the side ends of the two pressure rollers and the side clamps are pressed with blocking baffles to prevent lateral pressure release of the material. The side clamps are the A side clamps 2a respectively arranged at the two ends of the two pressure rollers; the lower corner of the A side clamp 2a on the side of the A pressure roller 1A is provided with an A arc-shaped notch h1, A curved notch h1 is set on the roller surface of the A pressure roller 1A; a B curved notch h2 is provided at the lower corner of the A side clamping plate 2a on the side of the B pressure roller 1B, and the B curved notch h2 is set on the roller surface of the B pressure roller 1B; the intersection of the outer periphery of the A pressure roller 1A and the outer periphery of the B pressure roller 1B along the axis of the A pressure roller 1A coincides with the lowest point of the bottom surface of the A side clamping plate 2a, and the blocking baffle is a wear-resistant baffle M1 set on the outside of the press-fit gap between the end face circle of the A pressure roller 1A, the end face circle of the B pressure roller 1B and the A side clamping plate 2a to prevent lateral pressure release of the material.

[0004] Roller presses using this technology can certainly be used, but their shortcomings are:

[0005] A. Since the roller press is most susceptible to wear and tear, Figure 5 As shown in the figure, the granular block material in this area is driven by the pressure roller 1A and the pressure roller 1B to continuously squeeze out from the gap, which inevitably causes great wear to the wear-resistant baffle M1. The local friction temperature of the side clamping plate 2a rises quickly and the loss is large. The wear-resistant baffle M1 needs to be replaced frequently, which requires a lot of maintenance work.

[0006] B. Since the gap between the wear-resistant baffle M1 and the corresponding position as a blocking baffle is easily changed by the material during the working process, the material pressure is not stable enough.

[0007] C. Since the A-side clamping plate 2a is mounted on the circumference of the two pressure rollers, it occupies the working area of ​​the roller surface, and the effective working area of ​​the roller surface is not large enough.

[0008] In summary, the use effect of the existing roller press is not ideal enough. Utility Model Content

[0009] In order to overcome the deficiencies of the prior art, the utility model provides an improved roller press, which is more durable and easy to maintain, has stable material pressure, a larger effective working area of ​​the roller surface than equipment of the same specification, and a more ideal use effect.

[0010] The technical solution adopted by the present invention to achieve the above technical purpose is: an improved roller press, including a frame, a pressure roller A and a pressure roller B arranged on the frame, the roller surfaces of the pressure roller A and the pressure roller B are arranged close to each other and the upper roller surfaces rotate relative to each other; the two ends of the two pressure rollers are respectively provided with side clamping plates that limit the feeding area, and the gaps between the side ends of the two pressure rollers and the side clamping plates are provided with blocking baffles to prevent the lateral pressure release of the material, and the two end surfaces of the pressure roller B are provided with flanges with a diameter larger than that of the pressure roller B; the blocking baffle is a circular B provided on the inner side of the flange. Wear-resistant baffles, circular C wear-resistant baffles with the same diameter as that of pressure roller A are provided on both end surfaces of pressure roller A, and the outer side surface of wear-resistant baffle C is spaced 3-5mm from the inner side surface of the corresponding wear-resistant baffle B; the side splint is a square B side splint; the lower corner of the B side splint on the side of pressure roller B is provided with a C arc-shaped notch; the radius of the corresponding circle of the arc notch of the C arc-shaped notch is equal to the radius of the B wear-resistant baffle B; the C arc-shaped notch rests on the circumference of the B wear-resistant baffle B; the intersection of the outer circumference of wear-resistant baffle B and the outer circumference of wear-resistant baffle C along the axis of pressure roller A is not lower than the bottommost surface of the B side splint.

[0011] The B wear-resistant baffle is a B wear-resistant baffle with a wear-resistant alloy layer on the inner side of the plate body; the C wear-resistant baffle is a C wear-resistant baffle with a wear-resistant alloy layer on the outer side of the plate body.

[0012] The beneficial effects of the present invention are as follows: Due to the adoption of the above structure, it has the following advantages:

[0013] A. During rolling, the corresponding part of the rotating wear-resistant baffle M2 and the granular block materials with a tendency to be extruded are in cyclic dynamic contact with the entire wear-resistant baffle M2. The local friction temperature rises relatively slowly and the temperature rise is low. The service life of the wear-resistant baffle M2 is longer, and it does not need to be replaced frequently, and the maintenance workload is small.

[0014] B. Since the wear-resistant baffle M2 serving as a blocking baffle is arranged on both end surfaces of the pressure roller 1B, the rotating wear-resistant baffle M2 is in cyclic dynamic contact with the granular block material with a tendency to be extruded, and the gap between the corresponding parts is not easy to change when the material is squeezed during the working process, and the material pressure is more stable.

[0015] C. Since the second side clamping plate 2b does not occupy the working area of ​​the roller surface, the roller surface feeding area is widened, truly realizing full roller surface feeding.

[0016] In summary, the utility model has a more ideal use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of a prior art roller press;

[0019] Figure 2 It is an abbreviated schematic diagram of a prior art roller press;

[0020] Figure 3 It is a schematic diagram of the utility model;

[0021] Figure 4 It is an omitted schematic diagram of the present utility model;

[0022] Figure 5 It is a schematic diagram of a roller press viewed from the side.

[0023] The reference numbers in the accompanying drawings are as follows: A pressure roller 1A, B pressure roller 1B, A side clamping plate 2a, B side clamping plate 2b, frame 3, flange 4, A wear-resistant baffle M1, B wear-resistant baffle M2, C wear-resistant baffle M3, A arc-shaped notch h1, B arc-shaped notch h2, C arc-shaped notch h3 DETAILED DESCRIPTION

[0024] The embodiments of the present utility model are as follows: Figure 3 、 Figure 4 , and refer to Figure 5As shown, an improved roller press comprises a frame 3, a first pressure roller 1A and a second pressure roller 1B arranged on the frame 3, the roller surfaces of the first pressure roller 1A and the second pressure roller 1B are arranged close to each other and the upper roller surfaces rotate in opposite directions; the two ends of the two pressure rollers are respectively provided with side clamps to limit the feeding area, and the gaps between the side ends of the two pressure rollers and the side clamps are pressed with blocking baffles to prevent the lateral pressure release of the material, and the two end faces of the second pressure roller 1B are provided with flanges 4 with a diameter larger than that of the second pressure roller 1B; the blocking baffle is a circular wear-resistant baffle M2 provided on the inner side of the flange 4, and the two end faces of the first pressure roller 1A are provided with a flange 4 with a diameter larger than that of the second pressure roller 1B. A circular C wear-resistant baffle M3 with the same diameter as the roller 1A is provided, and the outer side surface of the C wear-resistant baffle M3 is set at a distance of 3-5mm from the inner side surface of the corresponding B wear-resistant baffle M2; the side splint is a square B side splint 2b; the lower corner of the B side splint 2b on the side of the B pressure roller 1B is provided with a C arc-shaped notch h3; the radius of the corresponding circle of the arc notch h3 is equal to the radius of the B wear-resistant baffle M2; the C arc-shaped notch h3 is resting on the circumferential surface of the B wear-resistant baffle M2; the intersection of the outer circumference of the B wear-resistant baffle M2 and the outer circumference of the C wear-resistant baffle M3 along the axis of the A pressure roller 1A is not lower than the bottommost surface of the B side splint 2b.

[0025] The B wear-resistant baffle M2 is a B wear-resistant baffle M2 with a wear-resistant alloy layer on the inner side of the plate body; the C wear-resistant baffle M3 is a C wear-resistant baffle M3 with a wear-resistant alloy layer on the outer side of the plate body.

[0026] Further explanation of the present invention: pressure roller A 1A is a movable end pressure roller, and pressure roller B 1B is a fixed end pressure roller.

Claims

1. An improved roller press, comprising a frame, and roller A and roller B mounted on the frame, wherein roller A and roller B are arranged with their roller surfaces spaced closely together and their upper roller surfaces rotate in opposite directions; side clamping plates are provided at both ends of the rollers to restrict the feeding area; and blocking baffles are provided at the gaps between the side ends of the rollers and the side clamping plates to prevent lateral pressure release of the material, characterized in that: Both end faces of the B pressure roller are provided with flanges with a diameter larger than that of the B pressure roller; the blocking baffle is a circular B wear-resistant baffle provided on the inner side of the flange, and the two end faces of the A pressure roller are provided with circular C wear-resistant baffles with the same diameter as the A pressure roller, and the outer side surface of the C wear-resistant baffle is 3-5mm apart from the inner side surface of the corresponding B wear-resistant baffle; the side splint is a square B side splint; the lower corner of the B side splint on the side of the B pressure roller is provided with a C arc-shaped notch; the radius of the arc notch corresponding to the circle is equal to the radius of the B wear-resistant baffle; the C arc-shaped notch is supported on the circumferential surface of the B wear-resistant baffle; the intersection of the outer circumference of the B wear-resistant baffle and the outer circumference of the C wear-resistant baffle along the axis of the A pressure roller is not lower than the bottommost surface of the B side splint.

2. The improved roller press according to claim 1, characterized in that: The B wear-resistant baffle is a B wear-resistant baffle with a wear-resistant alloy layer on the inner side of the plate body; the C wear-resistant baffle is a C wear-resistant baffle with a wear-resistant alloy layer on the outer side of the plate body.

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