WO2016165645A1 - 高压磨粉机 - Google Patents

高压磨粉机 Download PDF

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Publication number
WO2016165645A1
WO2016165645A1 PCT/CN2016/079379 CN2016079379W WO2016165645A1 WO 2016165645 A1 WO2016165645 A1 WO 2016165645A1 CN 2016079379 W CN2016079379 W CN 2016079379W WO 2016165645 A1 WO2016165645 A1 WO 2016165645A1
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WO
WIPO (PCT)
Prior art keywords
mill
pressure
grinding
pressure vessel
mill body
Prior art date
Application number
PCT/CN2016/079379
Other languages
English (en)
French (fr)
Inventor
谈宁刚
牛相山
张勇
Original Assignee
武汉凯迪工程技术研究总院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 武汉凯迪工程技术研究总院有限公司 filed Critical 武汉凯迪工程技术研究总院有限公司
Priority to RU2017139858A priority Critical patent/RU2670873C9/ru
Priority to AU2016249430A priority patent/AU2016249430B2/en
Priority to EP16779620.0A priority patent/EP3284539A4/en
Priority to JP2017554274A priority patent/JP6595001B2/ja
Priority to CA2982857A priority patent/CA2982857A1/en
Publication of WO2016165645A1 publication Critical patent/WO2016165645A1/zh
Priority to US15/784,215 priority patent/US20180036738A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/17—Cooling or heating of discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the invention relates to a grinding device for grinding materials such as coal and non-metallic minerals, in particular to a high-pressure grinding machine.
  • the mills used in the market generally work under normal pressure, such as: roller mill (Raymond mill, vertical mill), ball mill, disc mill, vibration mill, jet mill and so on.
  • roller mill Diamond mill, vertical mill
  • ball mill ball mill
  • disc mill disc mill
  • vibration mill jet mill
  • the working condition of the grinding medium under high pressure working environment often occurs, so that the grinding machine needs to be placed in a high-pressure working environment, and the grinding machine works in a high-pressure working environment.
  • the design and production requirements of the mill used under high pressure conditions are very strict. Therefore, the existing mill is difficult to meet the requirements of the grinding medium in a high pressure working condition process system.
  • the object of the present invention is to solve the deficiencies of the above background art, and to provide a high-pressure mill suitable for use in a high-pressure working condition of a grinding medium.
  • the high-pressure mill designed by the present invention comprises a mill body and an electric motor, and the mill body is provided with a high-pressure vessel outside the body, and the high-pressure vessel forms a seal with the body of the mill.
  • the top seal of the high-pressure container is inserted into the connecting shaft, and the upper end of the connecting shaft is drivingly connected with the output shaft of the motor, and the lower end of the connecting shaft and the mill body are
  • the main shaft is connected; in operation, the sealed space between the mill body and the high-pressure container is connected to a high-pressure
  • the sealed space between the mill body and the high-pressure vessel can be passed through a high-pressure inert medium to make the mill
  • the internal and external pressure balance of the powder machine body improves the force environment of the mill body, so that the mill body can follow the general design and production requirements, greatly reducing the development and manufacturing costs;
  • the pressure of the inert medium filled in the container is designed to be slightly larger than the internal pressure of the body of the mill, so that the body of the mill is equivalent to a negative pressure operation, thereby reducing dust leakage and dusting, and reducing environmental dust pollution;
  • the lower end of the connecting shaft is coupled to the main shaft of the mill body through a coupling.
  • the main shaft of the mill body can also be lengthened and extended to the outside of the high pressure container to be directly connected to the output shaft of the motor.
  • the abutment portion of the support base is located in the high pressure vessel, and the leg portion of the support base is sealed through the bottom of the high pressure vessel and extends to be flush with the leg of the high pressure vessel.
  • leg portion of the support base is sealed through the bellows through the bottom of the high pressure vessel.
  • other sealing structures can also be used.
  • the mill body includes a milling shell and an upper layer crushing mechanism and a lower layer grinding mechanism respectively installed in the powder shell;
  • the upper layer crushing mechanism comprises an upper wear-resistant inner ring, and the upper wear-resistant inner ring is laminated with a plurality of upper rotating disks which are successively descending from the top to the bottom, and the inner surface of the upper wear-resistant ring is provided a groove having a stepped structure for accommodating the upper rotating disk, the diameter of each of the grooves from top to bottom is matched with the diameter of the upper rotating disk at a corresponding position, and each of the upper layers is rotated
  • Corresponding positions on the outer edge of the disc are respectively provided with a plurality of upper guiding grooves, and a corresponding number of upper grinding bodies are movably mounted between the two adjacent upper rotating discs through the guiding slots, and all the upper layers are rotated
  • the mass of the upper layer of the abrasive body on the disc is successively decreased from top to bottom, and the mass of the upper layer of the upper layer of the rotating disc is the same;
  • the lower layer grinding mechanism comprises a lower wear-resistant collar, wherein the lower wear-resistant collar has a plurality of lower-layer rotating disks of the same diameter, and corresponding positions on the outer edges of each of the lower rotating disks are respectively set. There are a plurality of lower guiding grooves, and a corresponding number of lower grinding bodies are movably mounted between the two adjacent lower rotating disks through the lower guiding grooves, and the quality of all the lower grinding bodies is the same;
  • the upper wear-resistant collar and the lower wear-resistant collar are respectively fixedly mounted on inner walls of the upper and lower halves of the milling shell, the upper rotating disc and the lower rotating disc They are fixedly mounted on the main shaft of the mill body, respectively.
  • the upper part and the lower part of the mill body correspondingly as the material crushing area and the material grinding area, the integration of the crushing and grinding functions is realized, and the grinding process is simplified; meanwhile, the body of the mill is vertical.
  • the multi-layer arrangement has a large mass of the upper grinding body, which mainly impacts the material, so that the large piece of material can be quickly broken under the action of the impact of the large-quality grinding body, and the lower grinding body has a small mass and a large number.
  • the material crushed by the upper massive abrasive body is mainly subjected to rolling, grinding and micro-impacting when passing through the grinding area of the material of the small-quality grinding body, so that the material can be effectively ground to a suitable particle size.
  • the requirement of a certain granularity can be achieved without a sorting mechanism; and, by replacing the upper and lower grinding bodies of different qualities, the particle size of the finished grinding product can be adjusted, and the operation is simple, convenient and quick;
  • the number of the grinding bodies in the body of the mill is small and the quality is not large, so that the impact of the grinding body on the milling shell is small, thereby reducing the grinding machine.
  • the stepped configuration of the groove can effectively delay the falling speed of the material in the crushing zone, increase the residence time of the material in the crushing zone, thus contributing to increasing the material to be broken, milled to chance.
  • the upper layer rotating disk and the lower layer rotating disk at the bottom layer have the same diameter
  • the upper layer polishing body at the bottom layer has the same mass as the lower layer polishing body.
  • the top and the bottom of the milling shell are respectively provided with an upper bearing seat and a lower bearing seat, and the upper end of the spindle of the mill body is installed in the upper bearing seat through a plane thrust bearing.
  • the lower end of the spindle of the mill body is mounted in the lower bearing housing by a cylindrical roller aligning bearing.
  • the bearing at the upper end of the main shaft of the mill body as a plane thrust bearing
  • the plane thrust bearing can provide an axial force for the main shaft of the mill body, and through the lower end of the spindle of the mill body
  • the bearing is designed as a cylindrical roller self-aligning bearing.
  • the cylindrical roller self-aligning bearing can effectively prevent the spindle from being excessively deflected.
  • the working condition of the main shaft ensures the rigidity of the main shaft of the mill body.
  • the upper end of the spindle of the mill body is further mounted on the upper bearing by a cylindrical roller bearing.
  • the cylindrical roller bearing is located above the planar thrust bearing.
  • the cylindrical roller bearing forms a three-bearing over-retentive support with the planar thrust bearing and the cylindrical roller self-aligning bearing, thereby further improving the body of the mill.
  • the working condition of the main shaft makes the rigidity of the main shaft of the mill body better.
  • a cooler is disposed outside the milling shell, and the cooler is a condenser.
  • the working temperature of the body of the mill can be greatly reduced, and the working temperature of the body of the mill can be controlled within a reasonable temperature range to ensure the best work of the body of the mill. status.
  • cold gas or cold liquid can be passed through the condenser.
  • the inspection port is provided on the side wall of the high pressure container.
  • the additional inspection port can facilitate the later maintenance and maintenance.
  • the high pressure vessel is sealed and spliced from the upper high pressure vessel section and the lower high pressure vessel section.
  • the high-pressure inert medium can be passed to the sealed space between the mill body and the high-pressure vessel, so that the internal and external pressure of the mill body is balanced, thereby improving the mill.
  • the force environment of the body which in turn enables the mill body to follow the general design and production requirements, greatly reducing the development and manufacturing costs;
  • the pressure of the inert medium filled in the high-pressure vessel is slightly larger than the internal pressure of the body of the mill, the body of the mill is equivalent to negative pressure operation, thereby reducing dust leakage and dusting, and reducing the environment. Dust pollution
  • the main body of the mill is arranged in a vertical multi-layer.
  • the upper part of the grinding body has a large mass, which mainly impacts the material, so that the large piece of material can be quickly broken under the impact of the massive grinding body.
  • the mass of the grinding body is small and the quantity is large.
  • the material crushed and crushed by the upper massive abrasive body is mainly subjected to rolling, grinding and micro-impacting when passing through the grinding area of the material of the small-quality grinding body, so that the material Can be effectively pulverized to a suitable particle size, so that a certain size can be achieved without a sorting mechanism;
  • the number of grinding bodies in the body of the mill is small and the quality is not large. Thus, the impact of the grinding body on the milling shell is small, thereby reducing the vibration and noise of the body of the mill;
  • the groove of the step structure can effectively delay the falling speed of the material in the crushing area, and increase the residence time of the material in the crushing area, thereby facilitating the increase of the probability of the material being crushed and ground;
  • the bearing at the upper end of the main shaft of the mill body as a plane thrust bearing
  • the plane thrust bearing can provide an axial force for the main shaft of the mill body, and through the lower end of the spindle of the mill body
  • the bearing is designed as a cylindrical roller self-aligning bearing.
  • the cylindrical roller self-aligning bearing can effectively prevent the spindle from being excessively deflected.
  • the working condition of the main shaft of the main body ensures the rigidity of the main shaft of the mill body;
  • the cylindrical roller bearing forms a three-bearing over-stationary support with the planar thrust bearing and the cylindrical roller self-aligning bearing, thereby further improving the milling.
  • the working condition of the main shaft of the machine body ensures better rigidity of the main shaft of the mill body;
  • the working temperature of the body of the mill can be greatly reduced, and the working temperature of the body of the mill can be controlled within a reasonable temperature range to ensure the most of the body of the mill. Good working condition;
  • the high-pressure vessel By designing the high-pressure vessel into a assembled structure, on the one hand, the production difficulty of the high-pressure vessel is reduced. On the other hand, it facilitates the installation and maintenance of the mill body.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is a partial enlarged structural view of Figure 1;
  • Figure 3 is a schematic view showing the mounting structure of the main shaft of the mill body
  • Figure 5 is a top plan view of Figure 4.
  • Figure 6 is a schematic structural view of a lower layer grinding mechanism
  • Figure 7 is a top plan view of Figure 6.
  • the mill body 1 the powder shell 1a, the upper layer crushing mechanism 1b, the upper layer wear ring 1b1, the upper layer rotating disc 1b2, the upper layer guiding groove 1b3, the upper layer grinding body 1b4, the groove 1b5, the lower layer grinding mechanism 1c, lower wear-resistant collar 1c1, lower-layer rotating disc 1c2, lower guide groove 1c3, lower-layer grinding body 1c4, upper bearing seat 1d, lower bearing housing 1e, plane thrust bearing 1f, cylindrical roller self-aligning bearing 1g, cylindrical roller Sub-bearing 1h, motor 2, high-pressure vessel 3, feed port 3a, discharge port 3b, upper high-pressure vessel section 3c, lower high-pressure vessel section 3d, soft feed joint 4, soft discharge joint 5, support base 6, minus The diaphragm 7, the connecting shaft 8, the coupling 9, the bellows 10, the cooler 11, and the inspection port 12.
  • a high-pressure mill as shown in FIG. 1 includes a mill body 1 and an electric motor 2, and a high-pressure vessel 3 is disposed outside the mill body 1, and between the high-pressure vessel 3 and the mill body 1 Forming a sealed space; the upper outer wall of the high-pressure vessel 3 is provided with a feed port 3a, and the feed port 3a is in sealing communication with the feed pipe of the mill body 1 through a soft feed joint 4, the high pressure
  • the lower outer wall of the container 3 is provided with a discharge opening 3b, and the discharge opening 3b is in sealing communication with the discharge pipe of the mill body 1 through a soft discharge joint 5, and the bottom of the high pressure container 3 is provided with a support.
  • the mill body 1 is mounted on the support base 6 via a cushion 7, the top seal of the high pressure container 3 is movably inserted with a connecting shaft 8, the upper end of the connecting shaft 8 and the The output shaft of the motor 2 is drivingly connected, and the lower end of the connecting shaft 8 is connected to the main shaft of the mill body 1; in operation, the sealed space between the mill body 1 and the high pressure container 3 is a high pressure inert medium having a pressure greater than or equal to The pressure inside the body 1 of the mill.
  • the high-pressure inert medium can be passed to the sealed space between the mill body 1 and the high-pressure vessel 3, so that the internal and external pressures of the mill body 1 are balanced, thereby improving
  • the force environment of the mill body 1 further enables the mill body 1 to follow the general design and manufacturing requirements, greatly reducing the development and manufacturing costs; at the same time, by injecting the inert medium into the high pressure vessel 3 Designed to be slightly larger than the internal pressure of the body 1 of the mill, such that the body 1 of the mill is equivalent to a negative pressure operation, thereby reducing dust leakage and dusting, reducing environmental dust pollution; and, by the body of the mill
  • a shock pad 7 is added between the support base 6 and the support tube 6 , and the inlet and outlet pipes of the mill body 1 are all connected with the inlet and outlet of the high pressure container 3 by soft joints, thereby making the mill body 1 and the high pressure container 3 All of them are softly connected, so that the vibration of the mill body 1 can
  • the lower end of the connecting shaft 8 is connected to the main shaft of the mill body 1 via a coupling 9.
  • the main shaft of the mill body 1 can also be lengthened and extended to the outside of the high pressure container 3 to be directly connected to the output shaft of the motor 2.
  • the abutment portion of the support base 6 is located in the high pressure container 3, and the leg portion of the support base 6 is sealed through the bottom of the high pressure container 3 and extends to be flush with the leg of the high pressure container 3.
  • the leg portion of the support base 6 is sealed through the bellows 10 through the bottom of the high pressure vessel 3.
  • other sealing structures can also be used.
  • the mill body 1 includes a milling shell 1a and an upper layer crushing mechanism 1b and a lower layer grinding mechanism 1c respectively installed in the powder shell 1a;
  • the upper layer crushing mechanism 1b includes an upper wear-resistant ring 1b1, and the upper wear-resistant ring 1b1 is laminated with a plurality of upper rotating disks 1b2 which are successively descended from the top to the bottom, and the upper wear-resistant ring
  • the inner surface of 1b1 is provided with a groove 1b5 for accommodating a stepped structure of the upper rotating disk 1b2, the diameter of each of the grooves 1b5 from top to bottom and the diameter of the upper rotating disk 1b2 at a corresponding position
  • a corresponding position on the outer edge of each of the upper rotating discs 1b2 is respectively provided with a plurality of upper guiding grooves 1b3, and two adjacent upper rotating discs 1b2 are movably mounted through the guiding grooves 1b3.
  • the lower layer grinding mechanism 1c includes a lower wear-resistant collar 1c1, and a plurality of lower-layer rotating disks 1c2 having the same diameter are stacked in the lower wear-resistant collar 1c1, and the outer edge of each of the lower-layer rotating disks 1c2 is laminated. Corresponding positions are respectively provided with a plurality of lower layer guiding grooves 1c3, and a corresponding number of lower layer grinding bodies 1c4 are movably mounted between the adjacent two lower layer rotating disks 1c2 through the lower layer guiding grooves 1c3, all of the lower layer grinding bodies 1c4 has the same quality;
  • the upper wear-resistant collar 1b1 and the lower wear-resistant collar 1c1 are fixedly mounted on the inner walls of the upper and lower halves of the milling shell 1a, respectively, the upper rotating disc 1b2 and the The lower rotating disks 1c2 are fixedly mounted on the main shaft of the mill body 1, respectively, and the upper rotating disk 1b2 and the lower rotating disk 1c2 at the bottommost layer have the same diameter, and the upper layer is at the bottom layer.
  • the mass of the abrasive body 1b4 is the same as the mass of the lower layer abrasive body 1c4.
  • the grinding body moves outward along the guiding groove on the rotating disc under the action of centrifugal force until the inner surface of the wear-resistant collar is pressed. At this time, the grinding body is in the main axis of the grinding machine body 1 The rotation of the main body of the mill body 1 is revolved while rotating, thereby causing the material to be broken and ground.
  • the mill body 1 By designing the upper part and the lower part of the mill body 1 correspondingly as the material crushing area and the material grinding area, the integrated crushing and grinding functions are realized, and the grinding process is simplified; meanwhile, the mill body 1 is adopted.
  • the upper part of the grinding body has a large mass, which mainly impacts the material, so that the large piece of material can be quickly broken under the action of the mass of the grinding body, and the lower part of the grinding body is smaller in mass and more in quantity.
  • Many materials that have been crushed by the upper massive abrasive body are mainly subjected to rolling, grinding and micro-impacting when passing through the material grinding area of the small-quality grinding body, so that the material can be effectively ground to the appropriate size.
  • the granularity so that a certain granularity can be achieved without a sorting mechanism; and by adjusting the upper grinding body 1b4 and the lower grinding body 1c4 of different qualities, the particle size adjustment of the finished grinding product can be realized, and the operation is simple, convenient and quick.
  • the number of the grinding bodies in the body 1 of the mill is large and the quality is not large, so that the impact of the grinding body on the milling shell 1a is small, thereby reducing The vibration and noise of the body 1 of the mill;
  • the groove 1b5 of the step structure can effectively delay the falling speed of the material in the crushing area, and increase the residence time of the material in the crushing area, thereby facilitating the increase of the material being broken, The probability of grinding; finally, by designing the diameter of the uppermost rotating disk at the lowest level to be the same as the diameter of the lower rotating disk, and designing the quality of the uppermost polishing body at the lowest level to be the same as the quality of the lower grinding body In this way, the material can be smoothly and smoothly transitioned from the material crushing area to the material grinding area.
  • the top and bottom of the above-mentioned mill housing 1a are respectively provided with an upper bearing housing 1d and a lower bearing housing 1e, and the upper end of the spindle of the mill body 1 is mounted in the upper bearing housing 1d by a planar thrust bearing 1f.
  • Mill body The lower end of the main shaft of 1 is mounted in the lower bearing housing 1e by a cylindrical roller aligning bearing 1g.
  • the planar thrust bearing 1f can provide an axial force for the main shaft of the mill body 1 and pass the mill body 1
  • the bearing at the lower end of the main shaft is designed as a cylindrical roller self-aligning bearing 1g.
  • the cylindrical roller self-aligning bearing 1g can effectively prevent the spindle from being excessively deflected.
  • the planar thrust bearing 1f and the cylindrical roller self-aligning bearing 1g The combination improves the working condition of the main shaft of the mill body 1, and the rigidity of the main shaft of the mill body 1 is ensured.
  • the upper end of the main shaft of the mill body 1 is also mounted in the upper bearing housing 1d by a cylindrical roller bearing 1h, which is located above the planar thrust bearing 1f.
  • the cylindrical roller bearing 1h and the planar thrust bearing 1f and the cylindrical roller aligning bearing 1g form a three-bearing over-retentive support, thereby further improving
  • the working condition of the main shaft of the mill body 1 provides a better guarantee of the rigidity of the main shaft of the mill body 1.
  • a cooler 11 is provided outside the above-mentioned mill housing 1a, and the cooler 11 is a condenser. By adding a cooler 11 outside the milling shell 1a, the operating temperature of the mill body 1 can be greatly reduced, and the operating temperature of the mill body 1 can be controlled within a reasonable temperature range to ensure the body of the mill. The best working condition of 1. In actual production, cold gas or cold liquid can be passed through the condenser.
  • a service port 12 is provided on a side wall of the high pressure container 3. The additional inspection port 12 can facilitate later maintenance and maintenance.
  • the high pressure vessel 3 is formed by sealing and splicing the upper high pressure vessel section 3c and the lower high pressure vessel section 3d.
  • the grinding process of the present invention is as follows:
  • the material enters the body 1 of the mill from the inlet 3a.
  • the material is first broken into the crushing area of the material and crushed by the upper grinding body 1b4.
  • the material is broken. It will be broken into tiny particles of a certain size. These tiny particles will continue to fall downward under the action of gravity, so that they enter the material grinding area and are ground and ground by the lower grinding body 1c4.
  • the fine particles will be It is ground to a set particle size and finally discharged from the discharge port 3b to complete the grinding process.
  • the invention provides a high-pressure container 3 outside the mill body 1, so that a high-pressure inert medium can be passed to the sealed space between the mill body 1 and the high-pressure container 3, so that the internal and external pressures of the mill body 1 are balanced, thereby
  • the force environment of the mill body 1 is improved, so that the mill body 1 can follow the general design and production requirements, greatly reducing the development and manufacturing costs; by filling the high pressure container 3 with the inert medium pressure Designed to be slightly larger than milling
  • the internal pressure of the machine body 1 is such that the mill body 1 is equivalent to a negative pressure operation, thereby reducing dust leakage and dusting, and reducing environmental dust pollution; by adding between the mill body 1 and the support base 6
  • the cushion 7 is provided, and the inlet and outlet pipes of the mill body 1 are all connected with the inlet and outlet of the high-pressure vessel 3 by soft joints, so that the mill body 1 and the high-pressure vessel 3 are all softly connected.
  • the vibration of the mill body 1 can be effectively prevented from being transmitted to the high pressure container 3, thereby improving the stability and the service life of the high pressure container 3; by sealing the leg portion of the support base 6 through the bottom of the high pressure container 3 and extending to The legs of the high-pressure vessel 3 are flush, so that the force of the legs of the high-pressure vessel 3 can be greatly reduced, thereby further improving the stability and service life of the high-pressure vessel 3; by respectively, the upper and lower portions of the mill body 1 are respectively Correspondingly designed into the material crushing area and the material grinding area, thus achieving the integration of the crushing and grinding functions, simplifying the grinding process; the mill body 1 adopts a vertical multi-layer arrangement, the upper part The quality of the grinding body is large, which mainly impacts the material, so that the large piece of material can be quickly broken under the action of the impact of the large mass of the grinding body.
  • the lower part of the grinding body is small in mass and the quantity is large, and the upper layer is mass-grinding body.
  • the material after impact crushing is mainly subjected to rolling, grinding and micro-impacting when passing through the grinding area of the material of the small-quality grinding body, so that the material can be effectively ground to a suitable particle size, thereby eliminating the need for a sorting mechanism.
  • the requirement of a certain particle size can be achieved; by adjusting the upper grinding body 1b4 and the lower grinding body 1c4 of different qualities, the particle size adjustment of the grinding product can be realized, the operation is simple, convenient and fast; the grinding in the body 1 of the mill The number of the body is large and the quality is not large, so that the impact of the grinding body on the milling shell 1a is small, thereby reducing the vibration and noise of the body 1 of the mill; the groove 1b5 of the step structure can effectively delay the material in The falling speed of the crushing zone increases the residence time of the material in the crushing zone, which is beneficial to increase the probability of the material being crushed and ground; by transferring the uppermost layer
  • the diameter of the moving disc is designed to be the same as the diameter of the lower rotating disc, and the mass of the upper grinding body at the bottom layer is designed to be the same as the quality of the lower grinding body, so that the material can be smoothly smoothed from the broken region of the material.
  • the bearing at the upper end of the spindle of the mill body 1 is a planar thrust bearing 1f
  • the planar thrust bearing 1f can provide an axial force to the spindle of the mill body 1 well
  • the bearing at the lower end of the main shaft of the mill body 1 is a cylindrical roller self-aligning bearing 1g
  • the cylindrical roller self-aligning bearing 1g can effectively prevent the deflection of the main shaft from being excessive, so that the planar thrust bearing 1f and
  • the combination of the cylindrical roller self-aligning bearing 1g improves the working condition of the main shaft of the mill body 1, so that the rigidity of the main shaft of the mill body 1 is ensured; by adding a cylindrical roller above the plane thrust bearing 1f
  • the sub-bearing 1h in this way, the cylindrical roller bearing 1h forms a three-bearing over-stationary support with the planar thrust bearing 1f and the cylindrical roller aligning bearing 1g, thereby further improving the mill machine Working conditions spindle 1, the mill body rigidity

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  • Food Science & Technology (AREA)
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Abstract

一种高压磨粉机，包括磨粉机本体（1）和电动机（2），磨粉机本体（1）外设有高压容器（3），高压容器（3）与磨粉机本体（1）之间形成密封空间；高压容器（3）的上部外壁上设有进料口（3a），进料口（3a）通过软进料接头（4）与磨粉机本体（1）的进料管密封连通，高压容器（3）的下部外壁上设有出料口（3b），出料口（3b）通过软出料接头（5）与磨粉机本体（1）的出料管密封连通，高压容器（3）的底部设有支承底座（6），磨粉机本体（1）通过减震垫（7）安装在支承底座（6）上，高压容器（3）的顶部密封活动插装有连接轴（8），连接轴（8）的上端与电动机（2）的输出轴传动连接，连接轴的下端与磨粉机本体（1）的主轴相连；工作时，磨粉机本体（1）与高压容器（3）之间的密封空间通有高压惰性介质，惰性介质的压力大于或等于磨粉机本体（1）内的压力。适用于煤炭和非金属矿等物料的粉磨。

Description

高压磨粉机 技术领域
本发明涉及一种用于粉磨煤炭和非金属矿等物料的粉磨设备，具体地指一种高压磨粉机。
背景技术
目前，市场上应用的磨粉机一般都是在常压下工作，如：辊磨机(雷蒙磨、立磨)、球磨机、盘磨机、振动磨、气流磨等等。但在实际生产时，往往会出现粉磨介质处于高压工作环境下的工况，这样，就需要将磨粉机置于高压的工作环境中工作，而磨粉机在高压的工作环境中工作时，会因粉磨而受到强烈的冲击，所以应用于高压工况下的磨粉机的设计及制作要求非常严格。因此，现有的磨粉机难以满足粉磨介质处于高压工况工艺系统的要求。
发明内容
本发明的目的是为了解决上述背景技术存在的不足，提出一种适用于粉磨介质处于高压工况的高压磨粉机。
为实现上述目的，本发明所设计的高压磨粉机，包括磨粉机本体和电动机，所述磨粉机本体外设有高压容器，所述高压容器与所述磨粉机本体之间形成密封空间；所述高压容器的上部外壁上设有进料口，所述进料口通过软进料接头与所述磨粉机本体的进料管密封连通，所述高压容器的下部外壁上设有出料口，所述出料口通过软出料接头与所述磨粉机本体的出料管密封连通，所述高压容器的底部设有支承底座，所述磨粉机本体通过减震垫安装在所述支承底座上，所述高压容器的顶部密封活动插装有连接轴，所述连接轴的上端与所述电动机的输出轴传动连接，所述连接轴的下端与所述磨粉机本体的主轴相连；工作时，所述磨粉机本体与所述高压容器之间的密封空间通有高压惰性介质，所述高压惰性介质的压力大于或等于所述磨粉机本体内的压力。通过在磨粉机本体外加设高压容器，这样可向磨粉机本体与高压容器之间的密封空间通以高压惰性介质，使磨 粉机本体的内外压力平衡，从而改善了磨粉机本体的受力环境，进而使得磨粉机本体可沿用一般等级的设计及制作要求，大大地降低了研发和制造成本；同时，通过将高压容器中充入的惰性介质压力设计成稍大于磨粉机本体的内部压力，这样，磨粉机本体相当于负压运行，因而减少了粉尘泄漏及扬尘现象，减小了环境粉尘污染；而且，通过在磨粉机本体和支承底座之间加设减震垫，并将磨粉机本体的进出料管全部用软接头与高压容器的进出料口连接，从而使得磨粉机本体与高压容器之间全部为软性连接，这样，能有效地防止磨粉机本体的振传递给高压容器，进而提高了高压容器的稳定性和使用寿命。
在上述方案中，所述连接轴的下端通过联轴器与所述磨粉机本体的主轴相连。当然，也可将磨粉机本体的主轴加长并延伸至高压容器外直接与电动机的输出轴传动连接。
在上述方案中，所述支承底座的支座部分位于所述高压容器内，所述支承底座的支脚部分密封贯穿所述高压容器底部并延伸至与所述高压容器的支脚平齐。通过将支承底座的支脚部分密封贯穿高压容器底部并延伸至与高压容器的支脚平齐，这样能大大的减小高压容器的支脚的受力，从而进一步地提高了高压容器的稳定性和使用寿命。
在上述方案中，所述支承底座的支脚部分通过波纹管密封贯穿所述高压容器底部。当然，也可采用其他密封结构。
在上述方案中，所述磨粉机本体包括磨粉壳体以及分别安装在所述磨粉壳体内的上层破碎机构和下层研磨机构；
其中，所述上层破碎机构包括上层耐磨衬圈，所述上层耐磨衬圈内层叠有若干个从上至下直径依次递减的上层转动圆盘，所述上层耐磨衬圈的内表面设有用于容纳所述上层转动圆盘的阶梯结构的凹槽，所述凹槽从上至下每层的直径与对应位置的所述上层转动圆盘的直径相配合，每个所述上层转动圆盘的外边缘上相对应的位置分别设有若干个上层导向槽，相邻两个所述上层转动圆盘之间通过所述导向槽活动安装有对应数量的上层研磨体，所有所述上层转动圆盘上的上层研磨体的质量从上至下依层依次递减，单个所述上层转动圆盘上的所述上层研磨体的质量相同；
所述下层研磨机构包括下层耐磨衬圈，所述下层耐磨衬圈内层叠有若干个直径相同的下层转动圆盘，每个所述下层转动圆盘的外边缘上相对应的位置分别设有若干个下层导向槽，相邻两个所述下层转动圆盘之间通过所述下层导向槽活动安装有对应数量的下层研磨体，所有所述下层研磨体的质量相同；
所述上层耐磨衬圈和所述下层耐磨衬圈分别固定安装在所述磨粉壳体的上半部分和下半部分的内壁上，所述上层转动圆盘和所述下层转动圆盘分别固定安装在所述磨粉机本体的主轴上。
通过将磨粉机本体的上部和下部分别对应设计成物料破碎区域和物料研磨区域，这样，实现了集破碎和研磨功能于一体，简化了粉磨工艺；同时，本磨粉机本体采用立式多层布置，上部的研磨体质量较大，对物料主要起冲击作用，使大块的物料在大质量研磨体冲击的作用下能迅速被破碎，下部的研磨体质量较小且数量较多，被上层大质量研磨体冲击破碎后的物料在经过小质量研磨体的物料研磨区域时，主要是受到滚压、磨剥及微冲击的作用，这样，物料能有效的被粉磨到合适的粒度，从而无需分选机构就能达到一定粒度的要求；而且，通过更换不同质量的上层研磨体和下层研磨体，即可实现粉磨成品粒径的调整，操作简单、方便、快捷；再且，本磨粉机本体内的研磨体数量多且质量均不大，这样，研磨体对磨粉壳体的冲击较小，从而减小了磨粉机本体的振动和噪音；最后，阶梯结构的凹槽能有效地延缓物料在破碎区域的下落速度，增长了物料在破碎区域的停留时间，从而有利于增加物料被破碎到、研磨到的机率。
在上述方案中，处于最底层的所述上层转动圆盘和所述下层转动圆盘的直径相同，处于最底层的所述上层研磨体的质量与所述下层研磨体的质量相同。通过将处于最底层的上层转动圆盘的直径设计成与下层转动圆盘的直径相同，并将处于最底层的上层研磨体的质量设计成与下层研磨体的质量相同，这样，物料能很好的从物料破碎区域顺利平滑的过渡到物料研磨区域。
在上述方案中，所述磨粉壳体的顶部和底部分别对应设有上轴承座和下轴承座，所述磨粉机本体的主轴上端通过平面推力轴承安装在所述上轴承座内，所述磨粉机本体的主轴下端通过圆柱滚子调心轴承安装在所述下轴承座内。通过将磨粉机本体的主轴上端处的轴承设计成平面推力轴承，该平面推力轴承能很好的为磨粉机本体的主轴提供轴向力，并通过将磨粉机本体的主轴下端处的轴承设计成圆柱滚子调心轴承，该圆柱滚子调心轴承能有效地防止主轴出现挠度过大的现象，这样，平面推力轴承与圆柱滚子调心轴承的组合改善了磨粉机本体的主轴的工作状况，使磨粉机本体的主轴的刚度强度有了保障。
在上述方案中，所述磨粉机本体的主轴上端还通过圆柱滚子轴承安装在所述上轴承 座内，所述圆柱滚子轴承位于所述平面推力轴承上方。通过在平面推力轴承上方再加设一个圆柱滚子轴承，这样，该圆柱滚子轴承与平面推力轴承和圆柱滚子调心轴承形成三轴承过静定支承，从而进一步地改善了磨粉机本体的主轴的工作状况，使磨粉机本体的主轴的刚度强度有了更好的保障。
在上述方案中，所述磨粉壳体外设有冷却器，所述冷却器为冷凝管。通过在磨粉壳体外加设冷却器，这样，可大大降低磨粉机本体的工作温度，使磨粉机本体的工作温度控制在合理的温度范围内，以保证磨粉机本体的最佳工作状态。实际生产时，冷凝管内可通冷气体或冷液体。
在上述方案中，所述高压容器的侧壁上设有检修口。通过加设的检修口能方便后期的检修和维护。
在上述方案中，所述高压容器由上高压容器段和下高压容器段密封拼接而成。通过将高压容器设计成拼装结构，这样一方面降低了高压容器的生产难度，另一方面方便了磨粉机本体的安装和维修。
本发明的优点在于：
1、通过在磨粉机本体外加设高压容器，这样可向磨粉机本体与高压容器之间的密封空间通以高压惰性介质，使磨粉机本体的内外压力平衡，从而改善了磨粉机本体的受力环境，进而使得磨粉机本体可沿用一般等级的设计及制作要求，大大地降低了研发和制造成本；
2、通过将高压容器中充入的惰性介质压力设计成稍大于磨粉机本体的内部压力，这样，磨粉机本体相当于负压运行，因而减少了粉尘泄漏及扬尘现象，减小了环境粉尘污染；
3、通过在磨粉机本体和支承底座之间加设减震垫，并将磨粉机本体的进出料管全部用软接头与高压容器的进出料口连接，从而使得磨粉机本体与高压容器之间全部为软性连接，这样，能有效地防止磨粉机本体的振传递给高压容器，进而提高了高压容器的稳定性和使用寿命；
4、通过将支承底座的支脚部分密封贯穿高压容器底部并延伸至与高压容器的支脚平齐，这样能大大的减小高压容器的支脚的受力，从而进一步地提高了高压容器的稳定性和使用寿命；
5、通过将磨粉机本体的上部和下部分别对应设计成物料破碎区域和物料研磨区域，这样，实现了集破碎和研磨功能于一体，简化了粉磨工艺；
6、本磨粉机本体采用立式多层布置，上部的研磨体质量较大，对物料主要起冲击作用，使大块的物料在大质量研磨体冲击的作用下能迅速被破碎，下部的研磨体质量较小且数量较多，被上层大质量研磨体冲击破碎后的物料在经过小质量研磨体的物料研磨区域时，主要是受到滚压、磨剥及微冲击的作用，这样，物料能有效的被粉磨到合适的粒度，从而无需分选机构就能达到一定粒度的要求；
7、通过更换不同质量的上层研磨体和下层研磨体，即可实现粉磨成品粒径的调整，操作简单、方便、快捷；
8、本磨粉机本体内的研磨体数量多且质量均不大，这样，研磨体对磨粉壳体的冲击较小，从而减小了磨粉机本体的振动和噪音；
9、阶梯结构的凹槽能有效地延缓物料在破碎区域的下落速度，增长了物料在破碎区域的停留时间，从而有利于增加物料被破碎到、研磨到的机率；
10、通过将处于最底层的上层转动圆盘的直径设计成与下层转动圆盘的直径相同，并将处于最底层的上层研磨体的质量设计成与下层研磨体的质量相同，这样，物料能很好的从物料破碎区域顺利平滑的过渡到物料研磨区域；
11、通过将磨粉机本体的主轴上端处的轴承设计成平面推力轴承，该平面推力轴承能很好的为磨粉机本体的主轴提供轴向力，并通过将磨粉机本体的主轴下端处的轴承设计成圆柱滚子调心轴承，该圆柱滚子调心轴承能有效地防止主轴出现挠度过大的现象，这样，平面推力轴承与圆柱滚子调心轴承的组合改善了磨粉机本体的主轴的工作状况，使磨粉机本体的主轴的刚度强度有了保障；
12、通过在平面推力轴承上方再加设一个圆柱滚子轴承，这样，该圆柱滚子轴承与平面推力轴承和圆柱滚子调心轴承形成三轴承过静定支承，从而进一步地改善了磨粉机本体的主轴的工作状况，使磨粉机本体的主轴的刚度强度有了更好的保障；
13、通过在磨粉壳体外加设冷却器，这样，可大大降低磨粉机本体的工作温度，使磨粉机本体的工作温度控制在合理的温度范围内，以保证磨粉机本体的最佳工作状态；
14、通过加设的检修口能方便后期的检修和维护；
15、通过将高压容器设计成拼装结构，这样一方面降低了高压容器的生产难度， 另一方面方便了磨粉机本体的安装和维修。
附图说明
图1为本发明的结构示意图；
图2为图1的局部放大结构示意图；
图3为磨粉机本体的主轴安装结构示意图；
图4为上层破碎机构的结构示意图；
图5为图4的俯视结构示意图；
图6为下层研磨机构的结构示意图；
图7为图6的俯视结构示意图。
图中：磨粉机本体1，磨粉壳体1a，上层破碎机构1b，上层耐磨衬圈1b1，上层转动圆盘1b2，上层导向槽1b3，上层研磨体1b4，凹槽1b5，下层研磨机构1c，下层耐磨衬圈1c1，下层转动圆盘1c2，下层导向槽1c3，下层研磨体1c4，上轴承座1d，下轴承座1e，平面推力轴承1f，圆柱滚子调心轴承1g，圆柱滚子轴承1h，电动机2，高压容器3，进料口3a，出料口3b，上高压容器段3c，下高压容器段3d，软进料接头4，软出料接头5，支承底座6，减震垫7，连接轴8，联轴器9，波纹管10，冷却器11，检修口12。
具体实施方式
以下结合附图和具体实施例对本发明作进一步的详细描述：
如图1所示的高压磨粉机，包括磨粉机本体1和电动机2，所述磨粉机本体1外设有高压容器3，所述高压容器3与所述磨粉机本体1之间形成密封空间；所述高压容器3的上部外壁上设有进料口3a，所述进料口3a通过软进料接头4与所述磨粉机本体1的进料管密封连通，所述高压容器3的下部外壁上设有出料口3b，所述出料口3b通过软出料接头5与所述磨粉机本体1的出料管密封连通，所述高压容器3的底部设有支承底座6，所述磨粉机本体1通过减震垫7安装在所述支承底座6上，所述高压容器3的顶部密封活动插装有连接轴8，所述连接轴8的上端与所述电动机2的输出轴传动连接，所述连接轴8的下端与所述磨粉机本体1的主轴相连；工作时，所述磨粉机本体1与所述高压容器3之间的密封空间通有高压惰性介质，所述高压惰性介质的压力大于或等于 所述磨粉机本体1内的压力。通过在磨粉机本体1外加设高压容器3，这样可向磨粉机本体1与高压容器3之间的密封空间通以高压惰性介质，使磨粉机本体1的内外压力平衡，从而改善了磨粉机本体1的受力环境，进而使得磨粉机本体1可沿用一般等级的设计及制作要求，大大地降低了研发和制造成本；同时，通过将高压容器3中充入的惰性介质压力设计成稍大于磨粉机本体1的内部压力，这样，磨粉机本体1相当于负压运行，因而减少了粉尘泄漏及扬尘现象，减小了环境粉尘污染；而且，通过在磨粉机本体1和支承底座6之间加设减震垫7，并将磨粉机本体1的进出料管全部用软接头与高压容器3的进出料口连接，从而使得磨粉机本体1与高压容器3之间全部为软性连接，这样，能有效地防止磨粉机本体1的振传递给高压容器3，进而提高了高压容器3的稳定性和使用寿命。
上述连接轴8的下端通过联轴器9与所述磨粉机本体1的主轴相连。当然，也可将磨粉机本体1的主轴加长并延伸至高压容器3外直接与电动机2的输出轴传动连接。
上述支承底座6的支座部分位于所述高压容器3内，所述支承底座6的支脚部分密封贯穿所述高压容器3底部并延伸至与所述高压容器3的支脚平齐。通过将支承底座6的支脚部分密封贯穿高压容器3底部并延伸至与高压容器3的支脚平齐，这样能大大的减小高压容器3的支脚的受力，从而进一步地提高了高压容器3的稳定性和使用寿命。所述支承底座6的支脚部分通过波纹管10密封贯穿所述高压容器3底部。当然，也可采用其他密封结构。
上述磨粉机本体1包括磨粉壳体1a以及分别安装在所述磨粉壳体1a内的上层破碎机构1b和下层研磨机构1c；
其中，所述上层破碎机构1b包括上层耐磨衬圈1b1，所述上层耐磨衬圈1b1内层叠有若干个从上至下直径依次递减的上层转动圆盘1b2，所述上层耐磨衬圈1b1的内表面设有用于容纳所述上层转动圆盘1b2的阶梯结构的凹槽1b5，所述凹槽1b5从上至下每层的直径与对应位置的所述上层转动圆盘1b2的直径相配合，每个所述上层转动圆盘1b2的外边缘上相对应的位置分别设有若干个上层导向槽1b3，相邻两个所述上层转动圆盘1b2之间通过所述导向槽1b3活动安装有对应数量的上层研磨体1b4，所有所述上层转动圆盘1b2上的上层研磨体1b4的质量从上至下依层依次递减，单个所述上层转动圆盘1b2上的所述上层研磨体1b4的质量相同；
所述下层研磨机构1c包括下层耐磨衬圈1c1，所述下层耐磨衬圈1c1内层叠有若干个直径相同的下层转动圆盘1c2，每个所述下层转动圆盘1c2的外边缘上相对应的位置分别设有若干个下层导向槽1c3，相邻两个所述下层转动圆盘1c2之间通过所述下层导向槽1c3活动安装有对应数量的下层研磨体1c4，所有所述下层研磨体1c4的质量相同；
所述上层耐磨衬圈1b1和所述下层耐磨衬圈1c1分别固定安装在所述磨粉壳体1a的上半部分和下半部分的内壁上，所述上层转动圆盘1b2和所述下层转动圆盘1c2分别固定安装在所述磨粉机本体1的主轴上，处于最底层的所述上层转动圆盘1b2和所述下层转动圆盘1c2的直径相同，处于最底层的所述上层研磨体1b4的质量与所述下层研磨体1c4的质量相同。
实际工作时，研磨体在离心力的作用下，沿转动圆盘上的导向槽向外移动直至压紧耐磨衬圈的内表面，此时，该研磨体在随着磨粉机本体1的主轴的转动相对磨粉机本体1的主轴作公转的同时，还发生自转，从而实现物料的破碎和研磨。
通过将磨粉机本体1的上部和下部分别对应设计成物料破碎区域和物料研磨区域，这样，实现了集破碎和研磨功能于一体，简化了粉磨工艺；同时，本磨粉机本体1采用立式多层布置，上部的研磨体质量较大，对物料主要起冲击作用，使大块的物料在大质量研磨体冲击的作用下能迅速被破碎，下部的研磨体质量较小且数量较多，被上层大质量研磨体冲击破碎后的物料在经过小质量研磨体的物料研磨区域时，主要是受到滚压、磨剥及微冲击的作用，这样，物料能有效的被粉磨到合适的粒度，从而无需分选机构就能达到一定粒度的要求；并且，通过更换不同质量的上层研磨体1b4和下层研磨体1c4，即可实现粉磨成品粒径的调整，操作简单、方便、快捷；而且，本磨粉机本体1内的研磨体数量多且质量均不大，这样，研磨体对磨粉壳体1a的冲击较小，从而减小了磨粉机本体1的振动和噪音；再且，阶梯结构的凹槽1b5能有效地延缓物料在破碎区域的下落速度，增长了物料在破碎区域的停留时间，从而有利于增加物料被破碎到、研磨到的机率；最后，通过将处于最底层的上层转动圆盘的直径设计成与下层转动圆盘的直径相同，并将处于最底层的上层研磨体的质量设计成与下层研磨体的质量相同，这样，物料能很好的从物料破碎区域顺利平滑的过渡到物料研磨区域。
上述磨粉壳体1a的顶部和底部分别对应设有上轴承座1d和下轴承座1e，所述磨粉机本体1的主轴上端通过平面推力轴承1f安装在所述上轴承座1d内，所述磨粉机本体 1的主轴下端通过圆柱滚子调心轴承1g安装在所述下轴承座1e内。通过将磨粉机本体1的主轴上端处的轴承设计成平面推力轴承1f，该平面推力轴承1f能很好的为磨粉机本体1的主轴提供轴向力，并通过将磨粉机本体1的主轴下端处的轴承设计成圆柱滚子调心轴承1g，该圆柱滚子调心轴承1g能有效地防止主轴出现挠度过大的现象，这样，平面推力轴承1f与圆柱滚子调心轴承1g的组合改善了磨粉机本体1的主轴的工作状况，使磨粉机本体1的主轴的刚度强度有了保障。所述磨粉机本体1的主轴上端还通过圆柱滚子轴承1h安装在所述上轴承座1d内，所述圆柱滚子轴承1h位于所述平面推力轴承1f上方。通过在平面推力轴承1f上方再加设一个圆柱滚子轴承1h，这样，该圆柱滚子轴承1h与平面推力轴承1f和圆柱滚子调心轴承1g形成三轴承过静定支承，从而进一步地改善了磨粉机本体1的主轴的工作状况，使磨粉机本体1的主轴的刚度强度有了更好的保障。
上述磨粉壳体1a外设有冷却器11，所述冷却器11为冷凝管。通过在磨粉壳体1a外加设冷却器11，这样，可大大降低磨粉机本体1的工作温度，使磨粉机本体1的工作温度控制在合理的温度范围内，以保证磨粉机本体1的最佳工作状态。实际生产时，冷凝管内可通冷气体或冷液体。所述高压容器3的侧壁上设有检修口12。通过加设的检修口12能方便后期的检修和维护。所述高压容器3由上高压容器段3c和下高压容器段3d密封拼接而成。通过将高压容器3设计成拼装结构，这样一方面降低了高压容器3的生产难度，另一方面方便了磨粉机本体1的安装和维修。
本发明的粉磨过程如下：
物料由进料口3a进入磨粉机本体1内，物料在磨粉机本体1内下落的过程中，首先进入物料破碎区域由上层研磨体1b4进行冲击破碎，经过这段物料破碎区域后，物料会被破碎成一定尺寸的微小颗粒，这些微小颗粒在重力作用下继续往下掉落，从而进入物料研磨区域由下层研磨体1c4进行研磨和磨剥，经过这段物料研磨区域后，微小颗粒会被粉磨到设定粒度，最终由出料口3b排出，完成粉磨过程。
本发明通过在磨粉机本体1外加设高压容器3，这样可向磨粉机本体1与高压容器3之间的密封空间通以高压惰性介质，使磨粉机本体1的内外压力平衡，从而改善了磨粉机本体1的受力环境，进而使得磨粉机本体1可沿用一般等级的设计及制作要求，大大地降低了研发和制造成本；通过将高压容器3中充入的惰性介质压力设计成稍大于磨粉 机本体1的内部压力，这样，磨粉机本体1相当于负压运行，因而减少了粉尘泄漏及扬尘现象，减小了环境粉尘污染；通过在磨粉机本体1和支承底座6之间加设减震垫7，并将磨粉机本体1的进出料管全部用软接头与高压容器3的进出料口连接，从而使得磨粉机本体1与高压容器3之间全部为软性连接，这样，能有效地防止磨粉机本体1的振传递给高压容器3，进而提高了高压容器3的稳定性和使用寿命；通过将支承底座6的支脚部分密封贯穿高压容器3底部并延伸至与高压容器3的支脚平齐，这样能大大的减小高压容器3的支脚的受力，从而进一步地提高了高压容器3的稳定性和使用寿命；通过将磨粉机本体1的上部和下部分别对应设计成物料破碎区域和物料研磨区域，这样，实现了集破碎和研磨功能于一体，简化了粉磨工艺；本磨粉机本体1采用立式多层布置，上部的研磨体质量较大，对物料主要起冲击作用，使大块的物料在大质量研磨体冲击的作用下能迅速被破碎，下部的研磨体质量较小且数量较多，被上层大质量研磨体冲击破碎后的物料在经过小质量研磨体的物料研磨区域时，主要是受到滚压、磨剥及微冲击的作用，这样，物料能有效的被粉磨到合适的粒度，从而无需分选机构就能达到一定粒度的要求；通过更换不同质量的上层研磨体1b4和下层研磨体1c4，即可实现粉磨成品粒径的调整，操作简单、方便、快捷；本磨粉机本体1内的研磨体数量多且质量均不大，这样，研磨体对磨粉壳体1a的冲击较小，从而减小了磨粉机本体1的振动和噪音；阶梯结构的凹槽1b5能有效地延缓物料在破碎区域的下落速度，增长了物料在破碎区域的停留时间，从而有利于增加物料被破碎到、研磨到的机率；通过将处于最底层的上层转动圆盘的直径设计成与下层转动圆盘的直径相同，并将处于最底层的上层研磨体的质量设计成与下层研磨体的质量相同，这样，物料能很好的从物料破碎区域顺利平滑的过渡到物料研磨区域；通过将磨粉机本体1的主轴上端处的轴承设计成平面推力轴承1f，该平面推力轴承1f能很好的为磨粉机本体1的主轴提供轴向力，并通过将磨粉机本体1的主轴下端处的轴承设计成圆柱滚子调心轴承1g，该圆柱滚子调心轴承1g能有效地防止主轴出现挠度过大的现象，这样，平面推力轴承1f与圆柱滚子调心轴承1g的组合改善了磨粉机本体1的主轴的工作状况，使磨粉机本体1的主轴的刚度强度有了保障；通过在平面推力轴承1f上方再加设一个圆柱滚子轴承1h，这样，该圆柱滚子轴承1h与平面推力轴承1f和圆柱滚子调心轴承1g形成三轴承过静定支承，从而进一步地改善了磨粉机本体1的主轴的工作状况，使磨粉机本体1的主轴的刚度强度有了更好的保障；通过在 磨粉壳体1a外加设冷却器11，这样，可大大降低磨粉机本体1的工作温度，使磨粉机本体1的工作温度控制在合理的温度范围内，以保证磨粉机本体1的最佳工作状态；通过加设的检修口12能方便后期的检修和维护；通过将高压容器3设计成拼装结构，这样一方面降低了高压容器3的生产难度，另一方面方便了磨粉机本体1的安装和维修。

Claims (11)

  1. 一种高压磨粉机，包括磨粉机本体(1)和电动机(2)，其特征在于：所述磨粉机本体(1)外设有高压容器(3)，所述高压容器(3)与所述磨粉机本体(1)之间形成密封空间；所述高压容器(3)的上部外壁上设有进料口(3a)，所述进料口(3a)通过软进料接头(4)与所述磨粉机本体(1)的进料管密封连通，所述高压容器(3)的下部外壁上设有出料口(3b)，所述出料口(3b)通过软出料接头(5)与所述磨粉机本体(1)的出料管密封连通，所述高压容器(3)的底部设有支承底座(6)，所述磨粉机本体(1)通过减震垫(7)安装在所述支承底座(6)上，所述高压容器(3)的顶部密封活动插装有连接轴(8)，所述连接轴(8)的上端与所述电动机(2)的输出轴传动连接，所述连接轴(8)的下端与所述磨粉机本体(1)的主轴相连；工作时，所述磨粉机本体(1)与所述高压容器(3)之间的密封空间通有高压惰性介质，所述高压惰性介质的压力大于或等于所述磨粉机本体(1)内的压力。
  2. 根据权利要求1所述的高压磨粉机，其特征在于：所述连接轴(8)的下端通过联轴器(9)与所述磨粉机本体(1)的主轴相连。
  3. 根据权利要求1所述的高压磨粉机，其特征在于：所述支承底座(6)的支座部分位于所述高压容器(3)内，所述支承底座(6)的支脚部分密封贯穿所述高压容器(3)底部并延伸至与所述高压容器(3)的支脚平齐。
  4. 根据权利要求3所述的高压磨粉机，其特征在于：所述支承底座(6)的支脚部分通过波纹管(10)密封贯穿所述高压容器(3)底部。
  5. 根据权利要求1所述的高压磨粉机，其特征在于：所述磨粉机本体(1)包括磨粉壳体(1a)以及分别安装在所述磨粉壳体(1a)内的上层破碎机构(1b)和下层研磨机构(1c)；
    其中，所述上层破碎机构(1b)包括上层耐磨衬圈(1b1)，所述上层耐磨衬圈(1b1)内层叠有若干个从上至下直径依次递减的上层转动圆盘(1b2)，所述上层耐磨衬圈(1b1)的内表面设有用于容纳所述上层转动圆盘(1b2)的阶梯结构的凹槽(1b5)，所述凹槽(1b5)从上至下每层的直径与对应位置的所述上层转动圆盘(1b2)的直径相配合，每个所述上层转动圆盘(1b2)的外边缘上相对应的位置分别设有若干个上层导向槽(1b3)，相邻两个所述上层转动圆盘(1b2)之间通过所述导向槽(1b3)活动安装有对应数量的上层研磨体(1b4)，所有所述上层转动圆盘(1b2)上的上层研磨体(1b4)的质量从上至下依层依次递减，单个所述上层转动圆盘(1b2)上的所述上层研磨体(1b4)的质量相同；
    所述下层研磨机构(1c)包括下层耐磨衬圈(1c1)，所述下层耐磨衬圈(1c1)内层叠有若干个直径相同的下层转动圆盘(1c2)，每个所述下层转动圆盘(1c2)的外边缘上相对应的位置分别设有若干个下层导向槽(1c3)，相邻两个所述下层转动圆盘(1c2)之间通过所述下层导向槽(1c3)活动安装有对应数量的下层研磨体(1c4)，所有所述下层研磨体(1c4)的质量相同；
    所述上层耐磨衬圈(1b1)和所述下层耐磨衬圈(1c1)分别固定安装在所述磨粉壳体(1a)的上半部分和下半部分的内壁上，所述上层转动圆盘(1b2)和所述下层转动圆盘(1c2)分别固定安装在所述磨粉机本体(1)的主轴上。
  6. 根据权利要求5所述的高压磨粉机，其特征在于：处于最底层的所述上层转动圆盘(1b2)和所述下层转动圆盘(1c2)的直径相同，处于最底层的所述上层研磨体(1b4)的质量与所述下层研磨体(1c4)的质量相同。
  7. 根据权利要求5所述的高压磨粉机，其特征在于：所述磨粉壳体(1a)的顶部和底部分别对应设有上轴承座(1d)和下轴承座(1e)，所述磨粉机本体(1)的主轴上端通过平面推力轴承(1f)安装在所述上轴承座(1d)内，所述磨粉机本体(1)的主轴下端通过圆柱滚子调心轴承(1g)安装在所述下轴承座(1e)内。
  8. 根据权利要求7所述的高压磨粉机，其特征在于：所述磨粉机本体(1)的主轴上端还通过圆柱滚子轴承(1h)安装在所述上轴承座(1d)内，所述圆柱滚子轴承(1h) 位于所述平面推力轴承(1f)上方。
  9. 根据权利要求5所述的高压磨粉机，其特征在于：所述磨粉壳体(1a)外设有冷却器(11)，所述冷却器(11)为冷凝管。
  10. 根据权利要求1所述的高压磨粉机，其特征在于：所述高压容器(3)的侧壁上设有检修口(12)。
  11. 根据权利要求1所述的高压磨粉机，其特征在于：所述高压容器(3)由上高压容器段(3c)和下高压容器段(3d)密封拼接而成。
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