CN210357494U - High-pressure double-pair roller mill - Google Patents
High-pressure double-pair roller mill Download PDFInfo
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- CN210357494U CN210357494U CN201921267237.0U CN201921267237U CN210357494U CN 210357494 U CN210357494 U CN 210357494U CN 201921267237 U CN201921267237 U CN 201921267237U CN 210357494 U CN210357494 U CN 210357494U
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Abstract
The utility model provides a two roller grinding mill of pair of high pressure, including frame, hopper, first squeeze roll device, second squeeze roll device and break up the roller, the hopper is installed at the frame top, and hopper and first squeeze roll device intercommunication, first squeeze roll device are installed on frame upper portion, and second squeeze roll device is installed in the frame lower part, breaks up the roller and installs respectively between first squeeze roll device and second squeeze roll device bottom. The utility model adopts a double-roller grinding (four-roller) structure and a scattering roller combined structure, coarse particles extruded by a first extrusion roller device fall into a second extrusion roller device below the first extrusion roller device to be extruded and crushed again, so that the material crushing is realized to the greatest extent, the later work difficulty is reduced, and the cost is greatly reduced; meanwhile, the loss and pollution caused by secondary transfer of materials are reduced. Partial materials can form a cake structure after being rolled by the high-pressure roller, and the cake is crushed by impacting a breaking roller, so that the equipment loss is reduced.
Description
Technical Field
The utility model relates to a crushing apparatus technical field, in particular to two roller mill of pair of high pressure.
Background
The high-pressure roller mill is superfine crushing equipment, and has the characteristics of low unit crushing energy consumption, low unit steel consumption, high unit processing capacity, uniform granularity of crushed products, small occupied area, high equipment operation rate and the like, so the high-pressure roller mill is very wide in application and becomes a development trend of a technology of more crushing and less grinding.
In the existing high-pressure roller mill, most of large materials can be broken after being rolled, but the rolled materials have thick particles and the thick particles need to be further ground, so that the working procedure is complex, the number of associated devices is large, and the working cost is high. Therefore, the grinding effect of the high-pressure roller mill needs to be improved, so that the grinding efficiency is improved, and the material is convenient to convey and subsequently process.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two pair roller mill of high pressure.
The utility model provides a technical problem adopted scheme be:
a high-pressure double-pair-roller mill comprises a rack, a feeding hopper, a first squeeze roller device, a second squeeze roller device and a scattering roller, wherein the feeding hopper is installed at the top of the rack and communicated with the first squeeze roller device; the first squeeze roller device comprises a first fixed roller and a first movable roller which are oppositely arranged on the upper portion of the rack, the second squeeze roller device comprises a second fixed roller and a second movable roller which are oppositely arranged on the lower portion of the rack, the first fixed roller, the first movable roller, the second fixed roller and the second movable roller are respectively connected with a first driving device, and the scattering roller is connected with a second driving device.
Two pairs of squeeze roller devices and two scattering rollers are arranged in the frame, namely a structure combining a double-pair roller mill (four-roller) structure and the scattering rollers, and the coarse particles extruded by the first squeeze roller device fall into the second squeeze roller device below the first squeeze roller device to be squeezed and crushed again by breaking the internal physical structure of the material and generating a stress principle through the extrusion of the roller mill, so that the material crushing is realized to the maximum extent; the later work difficulty is reduced, and the cost is greatly reduced; meanwhile, the loss and pollution caused by secondary transfer of materials are reduced. Meanwhile, part of materials can form a cake structure after being rolled by a high-pressure roller, and the block-shaped cake can increase the impact and abrasion on equipment. The material cake is crushed by impacting the scattering roller, so that the equipment loss is reduced.
Preferably, the bearing is installed respectively to the both ends that first fixed roll, first removal roller, the fixed roller of second, second removed the roller and broken up the roller, the bearing corresponds respectively to be installed in the bearing frame in the frame, the bearing frame that first removal roller and second removed the roller with guide rail sliding connection in the frame, the bearing frame that first removal roller and second removed the roller is connected with respectively and removes roller guiding mechanism.
The moving roller adjusting mechanism is used for adjusting the distance between the roller bodies; when the material throughput is large or the material is harder and enters the roller mill, and the roll gap between the fixed roller and the movable roller cannot be suitable, if the roll gap is not adjusted in time, the roller body and the first driving device are easy to damage, the automatic adjustment of the roll gap to adapt to the material crushing process can be realized by the movable roller adjusting mechanism, the roller body is prevented from being damaged by the material, and the service lives of the roller body and the first driving device are prolonged.
Preferably, the moving roller adjusting mechanism comprises an oil cylinder and a hydraulic station which are connected through an oil way, the output end of a piston rod of the oil cylinder is connected with a bearing seat of the first moving roller or the second moving roller, and the hydraulic station is provided with a pressure sensor for measuring the pressure of the hydraulic station in real time.
Preferably, the first driving device comprises a hydraulic motor, the first fixed roller, the first movable roller, the second fixed roller and the second movable roller are respectively and coaxially connected with the output end of the corresponding hydraulic motor, a shell of the hydraulic motor is connected with the bearing seat, and the hydraulic motor is supplied with oil by the hydraulic station.
Preferably, the roller surface of the scattering roller is provided with wear-resistant roller cutters, and the roller cutters are arranged in a spiral line. The structure can thoroughly crush the material cakes and reduce the equipment loss.
Preferably, the roll surfaces of the first fixed roll, the first movable roll, the second fixed roll and the second movable roll are uniformly and densely distributed with high-hardness studs, and the edges of two ends of the roll surfaces are respectively provided with a high-hardness wear-resistant edge protection layer. The beneficial effects of the step are that the roller body is easy to wear during the work of the high-pressure roller mill, the service life of the roller body is prolonged by additionally arranging the wear-resistant layer through optimizing stud arrangement of the roller surface, and meanwhile, the production cost is reduced.
Preferably, a material guide hopper is arranged between the first squeezing roller and the second squeezing roller device, and a plurality of rib plates are arranged in the material guide hopper. The beneficial effect who adopts this step is that the material is led the fill and is played the effect of keeping off the material, guarantees that the material falls into the second squeeze roll device, and the gusset is used for keeping off the material through the produced effort of first squeeze roll device and second squeeze roll device breakage when central, prevents simultaneously that the material from escaping from both sides and leaking, also alleviates the loss to the roll body.
The utility model has the advantages that:
1. two pairs of squeeze roller devices and two scattering rollers are arranged in the frame, namely a structure formed by combining double pairs of roller mills (four rollers) and scattering rollers, and the coarse particles extruded by the first squeeze roller device fall into the second squeeze roller device below the first squeeze roller device to be squeezed and crushed again by breaking the internal physical structure of the material and generating a stress principle through the extrusion of the roller mills, so that the material crushing is realized to the maximum extent; the later work difficulty is reduced, and the cost is greatly reduced; meanwhile, the loss and pollution caused by secondary transfer of materials are reduced. Meanwhile, part of materials can form a cake structure after being rolled by a high-pressure roller, and the block-shaped cake can increase the impact and abrasion on equipment. The material cake is crushed by impacting the scattering roller, so that the equipment loss is reduced.
2. The bearing seats of the first movable roller and the second movable roller are connected to the frame through guide rails in a sliding mode and are respectively connected with the movable roller adjusting devices, and the distance between the roller bodies can be adjusted conveniently. After harder material gets into the roller mill, when the interval of fixed roller and removal roller can not adapt to harder material, the fragile roll body realizes automatically regulated through removing roller adjusting device, prevents that the roll body from being damaged by the material, carries the life-span that has prolonged the roll body.
3. The conical guide hopper plays a role in blocking materials, the materials are guided to fall into the second squeeze roll device after being rolled by the first squeeze roll device, and the rib plates are used for blocking acting force generated by crushing the materials when passing through the centers of the first squeeze roll device and the second squeeze roll device, so that the materials are prevented from escaping from two sides and leaking, and loss of the roller body is reduced.
Drawings
FIG. 1 is a front view of an embodiment of a medium and high pressure double pair roller mill of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a schematic structural diagram of a scattering roller according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a material guide hopper in an embodiment of the present invention;
wherein: 1-a frame; 2-a hopper; 3-a first squeeze roll device; 4-a second squeeze roll device; 5-breaking up the roller; 6-moving roller adjusting mechanism; 7-material guide hopper;
101-a bearing seat; 102-a guide rail; 103-a first drive; 104-a second drive;
301-a first fixed roller; 302-a first moving roll;
401 — a second fixed roller; 402-a second moving roller;
501-roller cutter;
601-oil cylinder;
701-rib plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "radial", and the like, are used in the orientations and positional relationships indicated in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a high-pressure double-roller mill, which is characterized in that two squeeze roller devices and two scattering rollers are arranged in a frame, namely, a double-roller mill (four rollers) and a scattering roller combined structure are arranged, so that coarse particles extruded by a first squeeze roller device fall into a lower second squeeze roller device for secondary extrusion and crushing, the later work difficulty is reduced, and the cost is greatly reduced; meanwhile, the loss and pollution caused by secondary transfer of materials are reduced. Meanwhile, part of materials can form a cake structure after being rolled by a high-pressure roller, and the block-shaped cake can increase the impact and abrasion on equipment. The material cake is crushed by impacting the scattering roller, so that the equipment loss is reduced.
Referring to fig. 1-3, the high-pressure double-roller mill comprises a frame 1, a feeding hopper 2, a first squeeze roller device 3, a second squeeze roller device 4 and a breaking roller 5, wherein the feeding hopper 2 is installed at the top of the frame 1, the first squeeze roller device 3 is installed at the upper part of the frame 1, the second squeeze roller device 4 is installed at the lower part of the frame 1, the breaking roller 5 is installed between the first squeeze roller device 3 and the second squeeze roller device 3, and the breaking roller 5 is also installed at the bottom of the second squeeze roller device 3; the first squeeze roller device 3 includes a first fixed roller 301 and a first movable roller 302 which are oppositely disposed at an upper portion of the frame 1, and the second squeeze roller device 4 includes a second fixed roller 401 and a second movable roller 402 which are oppositely disposed at a lower portion of the frame 1. The outer diameter of the roller body in the first squeeze roller device 3 is larger than that of the second squeeze roller device 4, and the break roller 5 and the roll gap between the first moving roller 302 and the first fixed roller 301 or the roll gap between the second moving roller 402 and the second fixed roller 401 are arranged in parallel with each other; the discharge port of the hopper 2 communicates with the space between the first fixed roller 301 and the first movable roller 302. The first fixed roller 301, the first movable roller 302, the second fixed roller 401 and the second movable roller 402 are respectively connected with a first driving device 103, and the scattering roller is connected with a second driving device 104.
In an embodiment, bearings are respectively installed at two ends of the first fixed roller 301, the first movable roller 302, the second fixed roller 401, the second movable roller 402 and the scattering roller 5, the bearings are respectively and correspondingly installed in the bearing seats 101 on the rack 1, the bearing seats of the first movable roller 302 and the second movable roller 402 are slidably connected with the guide rail 102 on the rack 1, and the bearing seats 101 of the first movable roller 302 and the second movable roller 402 are respectively connected with a movable roller adjusting mechanism 6 for adjusting the size of a roller gap between the movable roller and the fixed roller which are oppositely arranged, so as to adapt to the material crushing process.
In one embodiment, referring to fig. 1, the moving roller adjusting mechanism 6 is in the form of an oil cylinder, and includes an oil cylinder 601 and a hydraulic station connected through an oil path, wherein the output end of the piston rod of the oil cylinder 601 is connected to the bearing seat 101 of the first moving roller 302 or the second moving roller 402, and the hydraulic station is provided with a pressure sensor for measuring the hydraulic station in real time.
Pressure sensor with the utility model provides a control unit electricity of roller mill is connected, transmits the atress signal for control unit through pressure sensor, realizes roll gap size control by the control unit feedback information, adapts to the comminuted process, prevents that the roll body from being damaged by the material, carries the life-span that has prolonged roll body and first drive arrangement 103. When the material falls into the first squeeze roller device 3 or the second squeeze roller device 4, the material exerts force on two roller bodies of the first squeeze roller device 3 or two roller bodies of the second squeeze roller device 4 simultaneously, when the material throughput is larger or the material is harder, the pressure borne by the roller surface is larger, the exerted counterforce is larger, the counterforce is directly transmitted to a pressure sensor in a matched hydraulic station through the internal pressure of the oil cylinder 601, the preset pressure maintaining parameter in the hydraulic station makes a response, the stroke of the oil cylinder 601 is automatically adjusted, the distance between roller gaps is controlled, simultaneously generated data is transmitted to a control system, the material is suitable for the crushing process, and the protective roller bodies are not easy to damage.
In one embodiment, the first driving device 103 includes a hydraulic motor, the first fixed roller 301, the first movable roller 302, the second fixed roller 401 and the second movable roller 402 are respectively coaxially connected to an output end of the corresponding hydraulic motor, a housing of the hydraulic motor is connected to the bearing seat 101, and the hydraulic motor is supplied with oil by the hydraulic station.
The second driving device 104 connected to the breaker roll 5 is generally a motor or the like commonly used in the art.
In one embodiment, referring to fig. 4, the roller surface of the scattering roller 5 is provided with wear-resistant roller cutters 501, and the roller cutters 501 are arranged in a spiral line.
The structure is beneficial to crushing the material cake. Part of the materials can form a cake structure after being rolled by a high-pressure roller. Although the cake is not very dense, it can interfere with subsequent transport and processing, and the cake in the form of a block can also increase impact and wear on the equipment. The cake impacts on the breaker roll 5, which can break the cake.
In a certain embodiment, the roll surfaces of the first fixed roll 301, the first movable roll 302, the second fixed roll 401 and the second movable roll 402 are uniformly and densely distributed with high-hardness studs, and the edges of the two ends of the roll surfaces are respectively provided with high-hardness wear-resistant edge protection layers. Through optimizing the high rigidity stud of arranging, reduce the roll surface damage, and increase both sides wearing layer, avoid both sides face because of the angle of stepping on that wearing and tearing produced to lead to revealing of material, prolong the roll body life-span.
In one embodiment, referring to fig. 1 and 5, a material guide hopper 7 fixed on the frame is arranged between the breaking roller 5 and the second squeeze roller device 4, and a plurality of rib plates 701 are arranged in the material guide hopper 7.
The material guide hopper 7 plays a role in stopping materials, ensures that the materials fall into the second squeeze roll device 4, and the rib plates 701 are used for resisting acting force generated by crushing the materials when the materials pass through the centers of the first squeeze roll device 3 and the second squeeze roll device 4, so that the materials are prevented from escaping from two sides, and loss of the roller body is reduced.
The utility model discloses in mention drive arrangement and guiding mechanism all be connected with the control unit, by the operation of the control unit control roller mill, the installation of each part is conventional means in this field.
The principle of the utility model is as follows:
the utility model discloses a two pairs of roller grinds (four rollers) mechanism comprises a pair of great large-size compression roller (first fixed roll 301 and first removal roller 302) that is located the upper end and a pair of less compression roller of size (second fixed roll 401 and second removal roller 402) that is located the lower extreme. When the materials enter the upper end and are extruded by large rollers (a first fixed roller 301 and a first movable roller 302), fine particles with the required diameter less than 5mm and coarse particles which need to be further rolled are formed; at the moment, a plurality of micro-cracks exist in the coarse particles or between the interface of the mineral and the surrounding waste rock, and large internal stress is generated due to the bearing of pressure without the interior of the particles with cracks; the coarse particles fall into the lower small rollers (the second fixed roller 401 and the second movable roller 402) to be extruded again, and are extremely easy to crush into fine particles with the particle size of less than 5mm, so that the material crushing is realized with the maximum effect.
Meanwhile, a material cake structure can be formed after partial materials are rolled by a high-pressure roller. Although the cake is not very dense, it can interfere with subsequent transport and processing, and the cake in the form of a block can also increase impact and wear on the equipment. Therefore, the breaking-up roller 5 is arranged between the large paired roller and the small paired roller (the first extrusion roller device 3 and the second extrusion roller device 4), the breaking-up roller 5 is also arranged below the small paired roller (the second extrusion roller device 4), and the material cake is crushed by the breaking-up roller 5, so that the impact and the abrasion of equipment are reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A high-pressure double-pair-roller mill is characterized by comprising a rack, a feeding hopper, a first squeeze roller device, a second squeeze roller device and a scattering roller, wherein the feeding hopper is installed at the top of the rack and communicated with the first squeeze roller device; the first squeeze roller device comprises a first fixed roller and a first movable roller which are oppositely arranged on the upper portion of the rack, the second squeeze roller device comprises a second fixed roller and a second movable roller which are oppositely arranged on the lower portion of the rack, the first fixed roller, the first movable roller, the second fixed roller and the second movable roller are respectively connected with a first driving device, and the scattering roller is connected with a second driving device.
2. The high-pressure double-pair roller mill according to claim 1, characterized in that bearings are respectively mounted at two ends of the first fixed roller, the first movable roller, the second fixed roller, the second movable roller and the scattering roller, the bearings are respectively correspondingly mounted in bearing seats on the frame, the bearing seats of the first movable roller and the second movable roller are slidably connected with a guide rail on the frame, and the bearing seats of the first movable roller and the second movable roller are respectively connected with a movable roller adjusting mechanism.
3. The high-pressure double-pair roller mill according to claim 2, characterized in that the moving roller adjusting mechanism comprises an oil cylinder and a hydraulic station which are connected through an oil circuit, the output end of a piston rod of the oil cylinder is connected with a bearing seat of the first moving roller or the second moving roller, and the hydraulic station is provided with a pressure sensor for measuring the pressure of the hydraulic station in real time.
4. A high-pressure double-pair roller mill according to claim 3, characterized in that the first drive means comprises a hydraulic motor, the first fixed roller, the first movable roller, the second fixed roller and the second movable roller being coaxially connected to the output of the corresponding hydraulic motor, respectively, the housing of the hydraulic motor being connected to the bearing housing, the hydraulic motor being supplied with oil by the hydraulic station.
5. The high-pressure double-pair roller mill according to claim 1, characterized in that the roll surface of the scattering roller is provided with wear-resistant roller knives, which are arranged in a spiral line.
6. The high-pressure double-pair roller mill according to claim 1, characterized in that the roller surfaces of the first fixed roller, the first movable roller, the second fixed roller and the second movable roller are uniformly and densely distributed with high-hardness studs, and high-hardness wear-resistant edge protection layers are respectively arranged at the edges of the two ends of the roller surfaces.
7. The high-pressure double-pair roller mill according to any one of claims 1 to 6, characterized in that a material guide hopper is arranged between the first squeeze roller and the second squeeze roller device, and a plurality of rib plates are arranged in the material guide hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267237.0U CN210357494U (en) | 2019-08-07 | 2019-08-07 | High-pressure double-pair roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267237.0U CN210357494U (en) | 2019-08-07 | 2019-08-07 | High-pressure double-pair roller mill |
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| Publication Number | Publication Date |
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| CN210357494U true CN210357494U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921267237.0U Active CN210357494U (en) | 2019-08-07 | 2019-08-07 | High-pressure double-pair roller mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892810A (en) * | 2020-12-28 | 2021-06-04 | 巩文花 | Grinding device for granular traditional Chinese medicinal materials and preparation method of traditional Chinese medicines |
| CN113245031A (en) * | 2021-05-18 | 2021-08-13 | 中钢集团马鞍山矿山研究总院股份有限公司 | Process for scattering high-pressure roller grinding cakes |
-
2019
- 2019-08-07 CN CN201921267237.0U patent/CN210357494U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112892810A (en) * | 2020-12-28 | 2021-06-04 | 巩文花 | Grinding device for granular traditional Chinese medicinal materials and preparation method of traditional Chinese medicines |
| CN113245031A (en) * | 2021-05-18 | 2021-08-13 | 中钢集团马鞍山矿山研究总院股份有限公司 | Process for scattering high-pressure roller grinding cakes |
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