CN217568933U - Roller shaft combined type roller press - Google Patents

Abstract

The utility model discloses a roller combined type roller press, which relates to the technical field of roller presses, and comprises a first roller shaft and a second roller shaft which are positioned in a shell, wherein the roller surface of the first roller shaft is a first rolling part, the second roller shaft comprises a supporting part for installing a wear-resistant element and a second rolling part for rolling materials, a roller gap for the materials to pass through is formed between the first rolling part and the second rolling part, and the supporting part is matched with the end surface of the first roller shaft; along the axial direction, an included angle a between an oblique line formed between the intersection point of the supporting part and the first roll shaft and the center of the first roll shaft and a horizontal line is larger than a biting angle of the material. The utility model provides a roller shaft combined roller press, which solves the problems of poor structure and uneven stress of the conventional roller surface and baffle ring; a wear-resistant element is arranged on the material blocking surface of the supporting part, and the wear-resistant element can be replaced after being worn; the extension part is arranged below the feeding pipe, so that the problem of edge leakage can be effectively solved, and the material extrusion effect is ensured.

Description

Roller shaft combined type roller press

Technical Field

The utility model relates to a roll squeezer technical field, concretely relates to combined type roll squeezer of roller.

Background

In the production process of the traditional industries such as building material cement, metallurgical mine, chemical industry and the like, the grinding power consumption accounts for 60-70% of the total power consumption, the high energy consumption and the low efficiency are the old and difficult problems of the industries such as building material cement, metallurgical mine, chemical industry and the like, and the improvement of the economic benefit of enterprises and the large-scale production scale are seriously hindered.

Due to the change of the grinding mechanism, the roller press (or called high-pressure roller mill) and the system process technology thereof can reduce the power consumption of the grinding system by 20-60 percent and improve the yield by 25-200 percent, and are suitable for the capacity expansion transformation of newly built plants or old plants. With the development of grinding technology in recent years, a roller press (high-pressure roller mill) based on the material bed grinding principle is widely applied to the grinding field of cement clinker, cement raw materials, slag, steel slag, iron ore, chemical industry and the like, has an obvious energy-saving effect, is an ideal roller shaft supporting part for saving energy and reducing consumption, saves energy, reduces power consumption and realizes sustainable development. However, with the generalization of the application of the roller press (or the high-pressure roller mill), the roller shaft of the extrusion roller of the conventional roller press (or the high-pressure roller mill) faces the following problems, as shown in fig. 1 to 3:

1. conventional roll surface + side baffle (stop at the roll sleeve end surface). Because the side baffle is movably blocked on the end surface of the roller sleeve, the side baffle is kept away from and close to the end surface of the roller sleeve according to the stress when the side baffle receives the extrusion force of the material by the ejector rod and the disc spring or the spring to resist the action of the extrusion force of the material on the side baffle. In the process that the side baffle is far away from the end face of the roller sleeve, materials leak from the edge, so that the extrusion effect of the materials at the edge is poor, and the overall extrusion effect of the roller press (or called high-pressure roller mill) is influenced. The side baffle keeps off there is still a serious problem in the side just, and the side baffle does not rotate, and when the material passes through the roll squeezer (or called high-pressure roller mill), is equivalent to the side baffle is fixed, and the material is in the in-process of passing through the roll squeezer, and both sides material is the friction with the side baffle all the time, and like this, the side baffle just has a concentrated wearing area, and the life-span of side baffle is shorter relatively, needs often to change.

2. And (4) a conventional roll surface and a baffle ring (the baffle ring is fixedly connected to the side surface of the roll sleeve through a bolt). In the material extrusion process, as the baffle ring blocks the material to move towards the edge, material aggregation is formed at the joint of the baffle ring and the roller sleeve. The stress condition of the whole roller in the width direction is that the middle is small, the two ends are large, and the stress is very uneven and consistent. The retaining ring is far away from the end face of the roller sleeve after being stressed, a gap is formed between the retaining ring and the end face of the roller sleeve in the process of distance, small materials enter the gap, the more the materials are accumulated, a wedge principle is formed between the retaining ring and the side face of the roller sleeve, and finally the bolt is broken or the retaining ring is broken or the side face of the roller sleeve is damaged by pulling.

And (4) a conventional roll surface and a baffle ring (the baffle ring is clamped on the roll sleeve and fixedly connected to the side surface of the roll sleeve through a bolt). In the material extrusion process, as the baffle ring blocks the material to move towards the edge, material aggregation is formed at the joint of the baffle ring and the roller sleeve. The stress condition of the whole roller in the width direction is that the middle is small, the two ends are large, and the stress is very uneven and consistent. The retaining ring has a tendency of moving towards the end face far away from the roller sleeve after being stressed, in the process, the retaining ring and the clamping groove of the roller sleeve are very stressed, the clamping groove of the roller sleeve close to the end face is easily broken, the clamping groove is broken to drive the bolt on the side face to be broken or the retaining ring to be broken, and the edge of the roller sleeve is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: aiming at the existing problems, the utility model provides a roller combined type roller press, wherein a supporting part capable of limiting materials is arranged at the end part of a second roller, thus solving the problems of poor structure and uneven stress; a wear-resistant element is arranged on the material blocking surface of the supporting part, and the wear-resistant element can be replaced after being worn; the extension part is arranged below the feeding pipe, so that the problem of edge leakage can be effectively solved, and the material extrusion effect is ensured.

The utility model adopts the technical scheme as follows:

a roller combined type roller press comprises a first roller shaft and a second roller shaft which are positioned in a shell, wherein the roller surface of the first roller shaft is a first rolling part, the second roller shaft comprises a supporting part used for installing a wear-resistant element and a second rolling part used for rolling a material, a roller gap through which the material can pass is formed between the first rolling part and the second rolling part, and the supporting part is matched with the end face of the first roller shaft; along the axial direction, an included angle a between an oblique line formed between the intersection point of the supporting part and the first roll shaft and the center of the first roll shaft and a horizontal line is larger than a biting angle of the material.

Furthermore, the wear-resistant element comprises a working part in direct contact with the material and an assembling part for connecting the working part to the supporting part of the second roller shaft, the working part is abutted against the end face of the supporting part close to one side of the second rolling part, the assembling part is arranged at one end of the working part and at least matched with the circumferential curved surface of the supporting part, and a plurality of assembling holes matched with the connecting pieces are formed in the assembling part. A plurality of the pilot hole is along assembly portion length direction equipartition, is equipped with the fillet between two adjacent pilot holes.

Furthermore, an annular fixing groove is formed in the junction of the supporting portion and the second roll pressing portion, and a fixing portion which can be limited to the fixing groove is arranged at one end, opposite to the connecting and assembling portion, of the working portion.

Furthermore, the working part comprises a wear surface directly contacted with the material and a supporting surface abutted against the supporting part, the wear surface and the supporting surface are oppositely arranged on two sides of the working part, and the assembling part is connected to the supporting surface; and a wear-resistant layer is arranged on the wear surface.

Further, the ends of adjacent wear-resistant elements can abut against each other, a plurality of wear-resistant elements can cooperate with each other to form a wear-resistant ring matched with the supporting part, and the ends of the adjacent wear-resistant elements in the wear-resistant ring abut against each other.

By adopting the technical scheme, the wear-resistant element is matched with the supporting part, rotates along with the second roller shaft and is consistent with the running direction of the material, so that the impact of the material on the wear-resistant element can be reduced; the widths of the assembly part and the supporting part can be adjusted as required, the wider assembly part has good force bearing effect, and the problem that the conventional roller surface and baffle ring structure is easy to break and damage is solved; compared with the conventional fixed side baffle, the wear surface area is large, each wear-resistant element rotates for one circle and then enters the wear area again, the total wear amount in unit time is evenly shared by the whole wear-resistant ring, and the service life of the wear-resistant element can be effectively prolonged.

The feeding pipe is arranged above the roll gap and matched with the roll gap, an extending part is arranged below the feeding pipe, the extending part is respectively matched with the first roll shaft and the second roll shaft, and the first roll shaft, the second roll shaft, the feeding pipe and the extending part are matched with each other to form a blanking area for limiting materials to pass through between the first roll shaft and the second roll shaft. The end face of one side, matched with the second rolling part, of the supporting part is a material blocking face; the extending part is matched with the material blocking surface and a gap is formed between the extending part and the material blocking surface; the extension part is matched with the end face of the first rolling part, and a gap is formed between the extension part and the end face of the first rolling part at intervals.

Further, the extension part comprises an extension area and a plugging area, and the plugging area is connected with the feeding pipe through the extension area; the blocking area is of a step-shaped structure and is matched with the edges of the supporting part and the first rolling part respectively; and the two ends of the assembly part in the width direction are provided with assembly baffles side by side, and the extension part is matched with the assembly baffles close to the second roller pressing part. The blocking area is of an arc structure matched with the edge parts of the first roll shaft and the second roll shaft, and the extending part at least extends to the roll gap. One end of each fillet is connected with the assembly baffle far away from the second roll pressing part, and the other end of each fillet extends towards the assembly baffle close to the second roll pressing part and is spaced from the assembly baffle close to the second roll pressing part. The plugging area comprises a vertical surface and a horizontal surface, the vertical surface extends into a gap between the fillet and the assembling baffle, the vertical surface and the extending area are oppositely arranged on two sides of the assembling baffle, and two ends of the horizontal surface are respectively connected with the vertical surface and the extending area. The shell is characterized by further comprising a limiting element, wherein one end of the limiting element is abutted against the outer surface of the extending part, and the other end of the limiting element is fixed on the shell.

Furthermore, a roller pressing area acting on the materials is formed between the first roller shaft and the second roller shaft, a roller side baffle is connected to the feeding pipe, and the roller side baffle is arranged on the outer side of the supporting portion and at least covers the roller pressing area in the vertical direction.

Further, still including clear material device, clear material device one end and shell connection stiff end, the other end extends to the roll surface department of first roller and/or second roller and forms and scrapes the material end, clear material device and roll surface between the interval gapped, scrape material end and roll surface shape matching to can act on the material of attached to on the roll surface. The scraping end is arranged in a non-rolling area below the first roll shaft and/or the second roll shaft.

Furthermore, the material cleaning device comprises a main material cleaning part matched with the first rolling part or the second rolling part and an auxiliary material cleaning part matched with the supporting part, wherein a gap is formed between the main material cleaning part and the working part at intervals, and a gap is formed between the auxiliary material cleaning part and the assembling part at intervals.

Due to the adoption of the technical scheme, when the material passes through the material cleaning device at one time, the material is scraped by the scraping end, the material is prevented from being brought between the two rollers to be extruded again, and the material attached to the first roller shaft and/or the second roller shaft is prevented from increasing in density and enlarging a roller gap.

Furthermore, a plurality of first grooves for balancing the pressure of the roller surface are arranged on the first roller pressing part, and each first groove is of an annular structure which circumferentially surrounds the first roller pressing part; the second roll pressing part is provided with a second groove for balancing the pressure of the roll surface, and the second groove is of an annular structure surrounding the second roll pressing part along the circumferential direction; the first groove and the second groove are matched with each other. The width of the first groove and the second groove is 10-200 mm, and the depth of the first groove and the second groove is 0-20 mm. The depth of the second groove is greater than the depth of the first groove.

Owing to adopted above-mentioned technical scheme, the density of material in second recess depths is less, changes to drop and is difficult for attaching to the roll surface of second roller.

Further, the first groove is formed in the end portion and/or the middle portion of the first rolling portion, and the second groove is formed in the end portion and/or the middle portion of the second rolling portion.

Further, the roller surface of the first roller shaft and/or the second roller shaft is a surfacing roller surface or a stud roller surface.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the end part of the roll shaft is provided with the supporting part which can limit materials, so that the problems of poor structure and uneven stress are solved; a wear-resistant element is arranged on the material blocking surface of the supporting part, and the wear-resistant element can be replaced after being worn; the material cleaning device is arranged, so that materials attached to the roller surface are prevented from being brought between the two rollers along with the rotation of the roller shaft to be extruded again, and the materials attached to the roller surface are prevented from increasing in density and enlarging a roller gap; an extension part is arranged below the feeding pipe, so that the problem of edge leakage can be effectively solved, and the material extrusion effect is ensured; the roller can realize the adjustment of the stress of the material in the width direction of the roller, so that the stress of the material passing through the two rollers is more balanced, the extrusion effect is better, the yield is higher, and the effective work is higher.

Drawings

FIG. 1 is a schematic structural view of a conventional roll surface + side baffle of a roll press (or high pressure roller mill);

FIG. 2 is a schematic structural diagram of a conventional roll surface + baffle ring (the baffle ring is fixedly connected to the side surface of a roll sleeve through a bolt) of a rolling machine (or called a high-pressure roller mill);

FIG. 3 is a schematic structural diagram of a conventional roll surface + baffle ring (the baffle ring is clamped on a roll sleeve and fixedly connected to the side surface of the roll sleeve through a bolt) of a rolling machine (or called a high-pressure roller mill);

fig. 4 is a front view of the wear member of the present invention;

fig. 5 is a side view of the wear member of the present invention;

FIG. 6 is a schematic view of the wear member of the present invention mounted to a roller shaft;

fig. 7 is a side view of the wear member of the present invention mounted to a roller shaft;

fig. 8 is a schematic structural view of the first roller shaft and the second roller shaft of the present invention;

fig. 9 is an assembly view of an extension of the present invention;

fig. 10 is an assembly view of the roll side dam of the present invention;

fig. 11 is a front view of the roller press capable of stopping material from the end surface;

fig. 12 is a top view of the roller press capable of stopping material from the end surface of the present invention;

figure 13 is a side view of the roll side dam of the present invention;

fig. 14 is a schematic structural view of the material cleaning device of the present invention;

fig. 15 is a schematic structural view of the first and second grooves formed on the end of the roller body according to the present invention;

fig. 16 is a schematic structural view illustrating that the first grooves and the second grooves are formed at the end and the middle of the roller body according to the present invention;

fig. 17 is a schematic structural view of the roller shaft body of the present invention with stud surfaces;

fig. 18 is a schematic structural view of the first groove and the second groove of the present invention;

fig. 19 is a schematic structural diagram of the angle a of the present invention.

The labels in the figure are: 1-a first roller shaft, 2-a second roller shaft, 3-a support part, 4-a wear-resistant element, 401-a working part, 402-an assembly part, 403-a fixing part, 404-an assembly hole, 5-a first groove, 6-a second groove, 7-a first dust ring, 8-a second dust ring, 9-a connecting piece, 10-a build-up welding roller surface, 11-a stud roller surface, 12-an assembly baffle, 13-a limiting element, 14-a feed pipe, 15-a roller side baffle, 16-a wear-resistant layer, 17-an extension part, 1701-an extension part, 1702-a blocking area, 18-a shell, 19-a material cleaning device, 1901-a main material cleaning part, 1902-an auxiliary material cleaning part and 20-a fixing groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A roller combined type roller press, as shown in fig. 4-8 and 19, comprising a first roller shaft 1 and a second roller shaft 2 which are positioned in a housing 18, wherein the roller surface of the first roller shaft 1 is a first roller pressing part, the second roller shaft 2 comprises a supporting part 3 for mounting a wear-resistant element 4 and a second roller pressing part for rolling a material, a roller gap for the material to pass through is formed between the first roller pressing part and the second roller pressing part, and the supporting part 3 is matched with the end surface of the first roller shaft 1; along the axial direction, an included angle a between an oblique line formed between the intersection point of the supporting part 3 and the first roller shaft 1 and the center of the first roller shaft 1 and a horizontal line is larger than a biting angle of the material.

The wear-resistant element 4 comprises a working part 401 directly contacted with the material and an assembling part 402 connecting the working part 401 to the supporting part 3 of the second roll shaft 2, the working part 401 is abutted against the end surface of the supporting part 3 close to one side of the second rolling part, the assembling part 402 is arranged at one end of the working part 401 and at least matched with the circumferential curved surface of the supporting part 3, and a plurality of assembling holes 404 matched with the connecting piece 9 are formed in the assembling part 402. A plurality of the assembling holes 404 are uniformly distributed along the length direction of the assembling portion 402, and a fillet is arranged between two adjacent assembling holes 404.

An annular fixing groove 20 is formed at the boundary of the support part 3 and the second roll pressing part, and a fixing part 403 which can be limited to the fixing groove 20 is arranged at one end of the working part 401 opposite to the connecting and assembling part 402.

The working part 401 comprises a wear surface directly contacted with the material and a supporting surface abutted against the supporting part 3, the wear surface and the supporting surface are oppositely arranged at two sides of the working part 401, and the assembling part 402 is connected with the supporting surface; the wear surface is provided with a wear resistant layer 16. Preferably, the wear resistant layer 16 is a hardfacing composite wear layer.

The ends of adjacent wear-resistant elements 4 can abut against each other, and a plurality of wear-resistant elements 4 can cooperate with each other to form a wear-resistant ring matched with the support 3, wherein the ends of the adjacent wear-resistant elements 4 in the wear-resistant ring abut against each other.

First roller 1 department is equipped with first dust ring 7 that is used for preventing the material from getting into sealed bearing, second roller 2 department is equipped with second dust ring 8 that is used for preventing the material from getting into sealed bearing.

Specifically, the wear-resistant element 4 is matched with the supporting part 3, the wear-resistant element 4 rotates along with the second roller shaft 2 and is consistent with the material running direction, and the impact of the material on the wear-resistant element 4 can be reduced; the widths of the assembling part 402 and the supporting part 3 can be adjusted according to needs, the wider assembling part 402 has good force bearing effect, and the problem that the conventional roller surface and baffle ring structure is easy to break and damage is solved; compared with the conventional fixed side baffle, the wear surface area is large, each wear-resistant element 4 rotates for one circle and then enters the wear area again, the total wear amount in unit time is evenly shared by the whole wear-resistant ring, and the service life of the wear-resistant elements 4 can be effectively prolonged.

Example 2

Example 2 is a further modification to example 1; further explaining, the same parts are not repeated herein, and as shown in fig. 9 to 13, the feeding device further includes a feeding pipe 14, the feeding pipe 14 is disposed above and matched with the roll gap, an extending portion 17 is disposed below the feeding pipe 14, the extending portions 17 are respectively matched with the first roller shaft 1 and the second roller shaft 2, and the first roller shaft 1, the second roller shaft 2, the feeding pipe 14 and the extending portion 17 are mutually matched to form a blanking area for limiting materials from passing between the first roller shaft 1 and the second roller shaft 2. The end face of one side, matched with the second rolling part, of the supporting part 3 is a material blocking face; the extending part 17 is matched with the material blocking surface and has a gap with the material blocking surface; the extension part 17 is matched with the end face of the first rolling part, and a gap is formed between the extension part and the end face of the first rolling part.

The extension 17 comprises an extension area 1701 and a blocking area 1702, the blocking area 1702 being connected to the feed conduit 14 via the extension area 1701; the blocking area 1702 is in a step-shaped structure and is respectively matched with the edge of the supporting part 3 and the edge of the first rolling part; the two ends of the assembling part 402 in the width direction are provided with assembling baffles 12 side by side, the assembling baffles 12, the assembling part 402 and the working part 401 are integrally formed or mutually matched and connected to form a whole, and the extending part 17 is matched with the assembling baffles 12 close to the second rolling part. The blocking area 1702 is an arc-shaped structure matched with the edge parts of the first roller shaft 1 and the second roller shaft 2, and the extending part 17 at least extends to the position of a roller gap. One end of the fillet is connected with the assembling baffle 12 far away from the second rolling part, the other end of the fillet extends towards the assembling baffle 12 near the second rolling part, and a gap is formed between the other end of the fillet and the assembling baffle 12 near the second rolling part. The blocking region 1702 includes a vertical surface extending into a gap between the fillet and the assembly baffle 12, and a horizontal surface disposed opposite to the extension region 1701 on both sides of the assembly baffle 12, and both ends of the horizontal surface are connected to the vertical surface and the extension region 1701, respectively. Specifically, the blocking region 1702 can avoid material leakage, and can not interfere with other components, and the structure is compact.

The device further comprises a limiting element 13, wherein one end of the limiting element 13 is abutted against the outer surface of the extension part 17, and the other end of the limiting element 13 is fixed on the shell 18. Specifically, the limiting member 13 may function to limit the extending portion 17, so as to prevent the extending portion 17 from being separated from the first roller shaft 1 and the second roller shaft 2 due to the extrusion force of the material.

A roll pressing area acting on materials is formed between the first roll shaft 1 and the second roll shaft 2, a roll side baffle 15 is connected to the feeding pipe 14, and the roll side baffle 15 is arranged on the outer side of the supporting part 3 and at least covers the roll pressing area along the vertical direction.

Example 3

Example 3 is a further modification of example 1 or example 2; further, the same components are not described again, and as shown in fig. 10, the material cleaning device 19 further includes a fixed end connected to the housing 18 at one end of the material cleaning device 19, and the other end of the material cleaning device extends to the roll surfaces of the first roll shaft 1 and the second roll shaft 2 respectively to form a material scraping end, a gap is formed between the material cleaning device 19 and the roll surfaces, and the material scraping end is matched with the roll surfaces in shape and can act on materials attached to the roll surfaces. The scraping end is arranged in a non-rolling area below the second roll shaft 2.

The material cleaning device 19 comprises a main material cleaning part 1901 matched with the first roller shaft 1 and the second roller pressing part, and an auxiliary material cleaning part 1902 matched with the supporting part 3, wherein a gap is formed between the main material cleaning part 1901 and the working part 401, and a gap is formed between the auxiliary material cleaning part 1902 and the assembling part 402.

Specifically speaking, when the material is in one pass clear material device 19, the material is scraped by the scraper end and is fallen, avoids the material to be brought into between two rollers and extrudees once more, prevents to adhere to the material density of first roller 1 and second roller 2 and bigger roll gap.

Example 4

Example 4 is a further modification of example 1, example 2 or example 3; further explanation, the same components are not repeated herein, and as shown in fig. 15 and 18, a plurality of first grooves 5 for balancing the pressure of the roller surface are formed in the first roller pressing portion, and the first grooves 5 are annular structures circumferentially surrounding the first roller pressing portion; a second groove 6 for balancing the pressure of the roller surface is arranged on the second rolling part, and the second groove 6 is of an annular structure surrounding the second rolling part along the circumferential direction; the first recess 5 and the second recess 6 are matched to each other. The width of the first groove 5 and the second groove 6 is 10-200 mm, and the depth is 0-20 mm. The depth of the second groove 6 is greater than the depth of the first groove 5.

Specifically, the material has a lower density at the depth of the second groove 6, is more likely to fall off and is less likely to adhere to the roll surface of the second roll shaft 2.

The first grooves 5 are provided at both ends of the first rolling portion, and the second grooves 6 are provided at both ends of the second rolling portion.

The roll surfaces of the first roll shaft 1 and the second roll shaft 2 are surfacing roll surfaces 10 or stud roll surfaces 11 shown in fig. 17.

Example 5

Embodiment 5 replaces the arrangement of the first grooves 5 and the second grooves 6 in embodiment 4, and is a replacement of embodiment 4; further, the same components are not described again, and as shown in fig. 16, the first grooves 5 are provided at the end and the middle of the first rolling portion, and the second grooves 6 are provided at the end and the middle of the second rolling portion. Specifically. According to the difference of the extrusion material, the first groove 5 and the second groove 6 are arranged at different positions of the roller surface, so that the adjustment of the material stress in the width direction of the roller is realized, the material stress between the two rollers is more balanced, the extrusion effect is better, the yield is higher, and the effective work is higher. For medium-coarse materials (such as cement clinker, iron ore medium-broken materials and the like), the first grooves 5 and the second grooves 6 can be arranged at the two end parts to reduce the stress of the materials at the two end parts, the first grooves 5 and the second grooves 6 can also be arranged at the two end parts and the middle part to reduce the stress of the materials at the two end parts and the middle part, and for coarse materials (cement raw materials, iron ore coarse-broken materials and the like), the first grooves 5 and the second grooves 6 are arranged at the two end parts to reduce the stress of the materials at the two end parts.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist understanding of the method and its core concept. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims. The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist understanding of the method and its core concept. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. The roller combined type roller press comprises a first roller shaft and a second roller shaft which are positioned in a shell, and is characterized in that the roller surface of the first roller shaft is a first rolling part, the second roller shaft comprises a supporting part for mounting a wear-resistant element and a second rolling part for rolling a material, a roller gap for the material to pass through is formed between the first rolling part and the second rolling part, and the supporting part is matched with the end surface of the first roller shaft; along the axial direction, an included angle a between an oblique line formed between the intersection point of the supporting part and the first roller shaft and the center of the first roller shaft and a horizontal line is larger than the biting angle of the material.

2. The roller press of claim 1, wherein the wear-resistant member comprises a working portion directly contacting the material and a fitting portion connecting the working portion to the second roller supporting portion, the working portion abuts against an end surface of the supporting portion on a side close to the second roller supporting portion, the fitting portion is provided at one end of the working portion and at least matches with the circumferential curved surface of the supporting portion, and the fitting portion is provided with a plurality of fitting holes matching with the connecting members.

3. The roller press of claim 2, wherein the supporting portion and the second pressing portion have a fixing groove at a junction therebetween, and the working portion has a fixing portion at an end opposite to the connecting and assembling portion for being fixed to the fixing groove.

4. The roller press of claim 2, wherein the working portion comprises a wear surface directly contacting the material and a support surface abutting against the support portion, the wear surface and the support surface being disposed on opposite sides of the working portion, the mounting portion being connected to the support surface; and a wear-resistant layer is arranged on the wear surface.

5. The roller combination roller press of any one of claims 2 to 4, further comprising a feed pipe disposed above and mating with the roller gap, wherein an extension is disposed below the feed pipe and mating with the first roller shaft and the second roller shaft, respectively, and wherein the first roller shaft, the second roller shaft, the feed pipe and the extension cooperate to define a discharge area that restricts passage of material between the first roller shaft and the second roller shaft.

6. The roller compactor of claim 5, wherein the extension comprises an extended region and a blocked region, the blocked region being connected to the feed conduit by the extended region; the blocking area is of a step-shaped structure and is matched with the edges of the supporting part and the first rolling part respectively; and the two ends of the assembly part in the width direction are provided with assembly baffles side by side, and the extension part is matched with the assembly baffles close to the second roller pressing part.

7. The roller press of claim 5, wherein a roller nip is formed between the first roller shaft and the second roller shaft for the material, and a roller side shield is connected to the feed pipe, is disposed outside the support, and covers the roller nip at least in a vertical direction.

8. The roller combination type roller press as claimed in claim 1, 2, 3, 4, 6 or 7, characterized in that it further comprises a material cleaning device, one end of the material cleaning device is connected with the housing and fixed, the other end of the material cleaning device extends to the roller surface of the first roller shaft and/or the second roller shaft to form a material scraping end, a gap is arranged between the material cleaning device and the roller surface, and the material scraping end is matched with the roller surface in shape and can act on the material attached on the roller surface.

9. The roller shaft combined roller press according to claim 8, wherein the material cleaning device comprises a main material cleaning part matched with the first roller pressing part or the second roller pressing part and an auxiliary material cleaning part matched with the supporting part.

10. The roller shaft combined type roller press as claimed in claim 1, 2, 3, 4, 6, 7 or 9, wherein a plurality of first grooves for balancing the pressure of the roller surface are arranged on the first roller pressing part, and the first grooves are of annular structures circumferentially surrounding the first roller pressing part; the second roll pressing part is provided with a second groove for balancing the pressure of the roll surface, and the second groove is of an annular structure surrounding the second roll pressing part along the circumferential direction; the first and second grooves are matched with each other.

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