Circulating type crushing and screening machine

Abstract

The invention relates to the technical field of crushers, and discloses a circulating crushing and screening machine which comprises a cylindrical shell, a feeding assembly is rotationally connected to the top of the cylindrical shell, an annular screening plate is fixedly installed on the inner wall of the upper half portion of the cylindrical shell, an annular bracket is fixedly installed on the inner wall of the annular screening plate, and a conical cover is fixedly installed on the inner wall of the annular bracket. A rolling assembly is attached to the top of the annular bracket, a secondary screening assembly is fixedly installed on the inner wall of the middle of the cylindrical shell, and a feeding assembly is arranged at the center of the conical cover in a penetrating mode. The brush plate sweeps the blocking ring, so that the stones cross the blocking ring and fall to the center of the material collecting hopper; and under the rotating action of the spiral blades, the stone blocks move to the top of the conical cover along the sleeve and the feeding pipe, then under the guiding action of the conical cover, the stone blocks fall to the top of the annular bracket again, the grinding rollers crush the stone blocks again, and therefore the purposes of automatic screening and automatic circulating feeding are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, in particular to a circulating crushing and screening machine. Background Art

[0002] Screening crusher is a mechanical device that can screen and crush bulk materials. It is mainly used to screen materials according to particle size requirements and crush materials that exceed the particle size requirements to meet the needs of subsequent processes. This equipment is widely used in mining, metallurgy, building materials, chemical industry, coal and other industries.

[0003] After the ore is crushed for the first time, a large number of stones with uneven particle sizes will be produced. The stones need to be screened to retain the stones with the target particle size. The stones that do not meet the particle size need to be put into the crusher for secondary crushing. Some stones even need to be crushed more than twice. In this process, it is necessary to manually or set up a lifting device to put the stones into the crusher, which makes the ore crushing efficiency low and difficult to perform automatic screening and cyclic crushing. Further improvements can be made. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a circulating crushing and screening machine having the advantages of automatic screening and automatic circulating feeding, thereby solving the problem of low efficiency caused by multiple feeding by manual or lifting equipment.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of the above-mentioned automatic screening and automatic cyclic feeding, the present invention provides the following technical solutions: a circulating crushing and screening machine, comprising a cylindrical shell, a feeding assembly is rotatably connected to the top of the cylindrical shell, an annular screen plate is fixedly installed on the inner wall of the upper half of the cylindrical shell, an annular support is fixedly installed on the inner wall of the annular screen plate, a conical cover is fixedly installed on the inner wall of the annular support, a rolling assembly is attached to the top of the annular support, a secondary screening assembly is fixedly installed on the inner wall of the middle part of the cylindrical shell, a feeding assembly is penetrated through the center of the conical cover, and the bottom end of the feeding assembly is rotatably connected to the center of the secondary screening assembly.

[0008] Preferably, a support ring and a mounting plate are fixedly installed on the outer wall of the upper half of the cylindrical shell, and the mounting plate is located on the lower side of the support ring. A guide ramp is fixedly installed on the inner wall of the bottom of the cylindrical shell, and the guide ramp gradually lowers from left to right. A discharge pipe is fixedly installed on the side of the bottom of the cylindrical shell, and the discharge pipe corresponds to the lowest point of the upper surface of the guide ramp.

[0009] Preferably, the feeding assembly includes a rotating ring sleeved on the outside of the top end of the cylindrical shell, the rotating ring is fitted on the top of the supporting ring, a feeding hopper is integrally formed on the top of the rotating ring, the feeding hopper is in the shape of an hourglass, a ring gear is fixedly mounted on the outer wall of the bottom end of the rotating ring, a reducer is fixedly mounted on the bottom of the mounting plate, a motor is fixedly mounted on the bottom input end of the reducer, a gear is fixedly mounted on the top output end of the reducer, and the gear is meshed with the ring gear.

[0010] Preferably, the annular sieve plate surface array is penetrated by sieve hole one, the secondary screening assembly includes a hopper fixedly mounted on the inner wall of the cylindrical shell, the hopper is located below the annular sieve plate, the inner diameter of the hopper gradually decreases from top to bottom, the upper half of the hopper array is penetrated by sieve hole two, the aperture of sieve hole two is smaller than the aperture of sieve hole one.

[0011] Preferably, a plurality of concentric blocking rings are fixedly mounted on the inner wall of the upper half of the aggregation hopper.

[0012] Preferably, the rolling assembly includes a connecting ring fixedly mounted on the inner wall of a rotating ring, the inner diameter of the connecting ring gradually decreases from top to bottom, an arch frame is fixed to the bottom array of the connecting ring, a rolling roller is rotatably connected to the bottom of the arch frame, the rolling roller is affixed to the top of an annular bracket, a push plate is fixed to the top array of the connecting ring, and the push plate is affixed to the top of the annular screen plate.

[0013] Preferably, the number of the arches and push plates is equal and they are spaced apart at the bottom of the connecting ring; a spring is fixedly mounted on the top wall of the arch; a scraper plate is fixedly mounted on the bottom of the spring; and the scraper plate is attached to the top of the rolling roller.

[0014] Preferably, the feeding assembly includes a feeding pipe passing through and fixed at the center of the conical cover, a rotating shaft is arranged along the axis of the feeding pipe, spiral blades are welded on the surface of the rotating shaft, a shielding cone head is fixedly installed on the top of the rotating shaft, a cross beam is fixed on the circumferential surface array of the shielding cone head, the other end of the cross beam is fixedly installed on the inner wall of the connecting ring, the bottom end of the rotating shaft passes through and is rotatably connected to the center of the secondary screening assembly, and the spiral blades are attached to the top center of the secondary screening assembly.

[0015] Preferably, a sleeve is provided between the bottom end of the feed pipe and the top of the hopper, the sleeve is sleeved on the outside of the spiral blade and fixedly mounted to the spiral blade, a notch is formed through the circumferential surface of the sleeve, a transverse plate is fixedly mounted on the circumferential surface of the sleeve, the transverse plate is affixed to the inner wall of the lower half of the secondary screening assembly, a brush plate is fixedly mounted on the top of the transverse plate, the brush plate is affixed to the inner wall of the upper half of the secondary screening assembly, an avoidance groove is formed through the bottom array of the brush plate, and a blocking ring passes through the avoidance groove.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a circulating crushing and screening machine, which has the following beneficial effects:

[0018] The circulating crushing and screening machine, when the connecting ring rotates, drives the shielding cone head, rotating shaft and spiral blades to rotate through the connecting action of the cross beam, and the brush plate sweeps over the blocking ring to gather the stones, and makes the stones pass over the blocking ring and fall to the center of the gathering hopper; then the horizontal plate pushes the stones to enter the casing, and then the spiral blades rotate to move the stones along the casing and feeding pipe to the top of the cone cover, and then under the guidance of the cone cover, they fall again on the top of the annular bracket, and the roller crushes the stones again. Thus, the purpose of automatic screening and automatic circulating feeding is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a circulating crushing and screening machine proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of a circulating crushing and screening machine proposed by the present invention;

[0021] Figure 3 A schematic diagram of a three-dimensional explosion structure of a circulating crushing and screening machine proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of a circulating crushing and screening machine proposed by the present invention after removing the feeding component;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of a rolling assembly of a circulating crushing and screening machine proposed by the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of a secondary screening component of a circulating crushing and screening machine proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of a secondary screening component and a feeding component of a circulating crushing and screening machine proposed by the present invention.

[0026] In the figure: 100, cylindrical shell; 200, feeding assembly; 300, annular screen plate; 400, annular support seat; 500, conical cover; 600, rolling assembly; 700, secondary screening assembly; 800, feeding assembly; 101, supporting ring; 102, mounting plate; 103, guide inclined plate; 104, discharge pipe; 201, rotating ring; 202, feeding hopper; 203, ring gear; 204, reducer; 205, motor; 206 , gear; 301, sieve hole one; 601, connecting ring; 602, arch frame; 603, rolling roller; 604, pushing plate; 605, spring; 606, dust scraper; 701, gathering hopper; 702, sieve hole two; 703, blocking ring; 801, feeding pipe; 802, rotating shaft; 803, spiral blade; 804, blocking cone head; 805, crossbeam; 806, sleeve; 807, cross plate; 808, brush plate; 809, avoidance groove. DETAILED DESCRIPTION

[0027] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 A circulating crushing and screening machine comprises a cylindrical shell 100, a feeding assembly 200 is rotatably connected to the top of the cylindrical shell 100, an annular screen plate 300 is fixedly installed on the inner wall of the upper half of the cylindrical shell 100, an annular bracket 400 is fixedly installed on the inner wall of the annular screen plate 300, a conical cover 500 is fixedly installed on the inner wall of the annular bracket 400, a rolling assembly 600 is attached to the top of the annular bracket 400, a secondary screening assembly 700 is fixedly installed on the inner wall of the middle part of the cylindrical shell 100, a feeding assembly 800 is penetrated at the center of the conical cover 500, and the bottom end of the feeding assembly 800 is rotatably connected to the center of the secondary screening assembly 700.

[0030] See also Figure 1-Figure 3A support ring 101 and a mounting plate 102 are fixedly mounted on the outer wall of the upper half of the cylindrical shell 100, and the mounting plate 102 is located at the lower side of the support ring 101. A guide inclined plate 103 is fixedly mounted on the inner wall of the bottom of the cylindrical shell 100, and the guide inclined plate 103 gradually decreases from left to right. A discharge pipe 104 is fixedly mounted on the side of the bottom of the cylindrical shell 100, and the discharge pipe 104 corresponds to the lowest point on the upper surface of the guide inclined plate 103. Therefore, after the ore is crushed, it falls on the top of the guide inclined plate 103, and can be discharged from the discharge pipe 104 after being guided by the guide inclined plate 103.

[0031] See also Figure 2-Figure 3 The feeding assembly 200 includes a rotating ring 201 sleeved on the outside of the top of the cylindrical shell 100. The rotating ring 201 is fitted on the top of the supporting ring 101. A feeding hopper 202 is integrally formed on the top of the rotating ring 201. The feeding hopper 202 is hourglass-shaped. The inner diameter of the upper part of the feeding hopper 202 gradually decreases from top to bottom, and the inner diameter of the lower part of the feeding hopper 202 gradually increases from top to bottom. When feeding, the ore is guided by the feeding hopper 202 to allow the ore to stably enter the interior of the cylindrical shell 100.

[0032] A ring gear 203 is fixedly mounted on the outer wall of the bottom end of the rotating ring 201, a reducer 204 is fixedly mounted on the bottom of the mounting plate 102, a motor 205 is fixedly mounted on the bottom input end of the reducer 204, a gear 206 is fixedly mounted on the top output end of the reducer 204, and the gear 206 is meshed with the ring gear 203. The motor 205 and the reducer 204 cooperate to drive the gear 206 to rotate, thereby driving the ring gear 203 and the rotating ring 201 to rotate.

[0033] See also Figure 4 and Figure 6-Figure 7 , the surface array of the annular sieve plate 300 is penetrated with a sieve hole 1 301, and the secondary screening component 700 includes a hopper 701 fixedly mounted on the inner wall of the cylindrical shell 100, the hopper 701 is located below the annular sieve plate 300, and the inner diameter of the hopper 701 gradually decreases from top to bottom. The upper half of the hopper 701 is penetrated with a sieve hole 2 702, and the aperture of the sieve hole 2 702 is smaller than the aperture of the sieve hole 1 301. Thus, the crushed stones are screened at the first level through the sieve hole 1 301, and the crushed stones are screened at the second level by the hopper 701. A plurality of concentric blocking rings 703 are fixedly mounted on the inner wall of the upper half of the hopper 701. The blocking rings 703 are used to block the stones inside the hopper 701, prolong the time that the stones stay inside the hopper 701, and prevent the stones from falling directly to the center of the hopper 701, thereby ensuring the screening effect of the sieve hole 2 702 on the stones.

[0034] See also Figure 3-Figure 5The rolling assembly 600 includes a connecting ring 601 fixedly mounted on the inner wall of the rotating ring 201. When ore is fed from the hopper 202 into the rotating ring 201, part of the ore will fall on the connecting ring 601. The inner diameter of the connecting ring 601 gradually decreases from top to bottom to prevent the ore from staying on the connecting ring 601.

[0035] The bottom array of the connecting ring 601 is fixed with an arch frame 602, and the bottom of the arch frame 602 is rotatably connected with a roller 603, which is attached to the top of the annular bracket 400. When the rotating ring 201 rotates relative to the cylindrical shell 100, the connecting ring 601 rotates synchronously, so that the roller 603 rolls on the annular bracket 400. The ore is crushed by the squeezing effect of the roller 603 and the annular bracket 400 on the ore.

[0036] The top array of the connecting ring 601 is fixed with a push plate 604, which is inclined and fits on the inner wall of the cylindrical shell 100, and fits on the top of the annular screen plate 300. The number of arches 602 and push plates 604 is equal, and they are distributed at intervals at the bottom of the connecting ring 601. Since some ore will fall to the top of the annular screen plate 300, the push plate 604 is driven by the connecting ring 601 to scrape the top of the annular screen plate 300, and the ore on the top of the annular screen plate 300 is pushed to the top of the annular bracket 400. The top wall of the arch 602 is fixedly installed with a spring 605, and the bottom of the spring 605 is fixedly installed with a dust scraper 606, which fits on the top of the roller 603. When ore powder adheres to the surface of the roller 603, the ore powder is shoveled off by the dust scraper 606.

[0037] See also Figure 7 The feeding assembly 800 includes a feeding pipe 801 that passes through and is fixed at the center of the conical cover 500. A rotating shaft 802 is arranged along the axis of the feeding pipe 801. A spiral blade 803 is welded on the surface of the rotating shaft 802. A shielding cone head 804 is fixedly installed on the top of the rotating shaft 802. The shielding cone head 804 prevents the ore fed from the feeding hopper 202 from directly entering the feeding pipe 801. A beam 805 is fixed on the circumferential array of the shielding cone head 804. The other end of the beam 805 is fixedly installed on the inner wall of the connecting ring 601, so that when the connecting ring 601 rotates, the shielding cone head 804 and the rotating shaft 802 are driven to rotate synchronously. The bottom end of the rotating shaft 802 passes through and is rotatably connected to the center of the secondary screening assembly 700, and the spiral blade 803 is attached to the top center of the secondary screening assembly 700. The stones gathered at the center of the hopper 701 are transferred to the top of the cone cover 500 by the pushing action of the spiral blade 803, and then fall to the top of the annular bracket 400 again through the guiding action of the cone cover 500.

[0038] A sleeve 806 is provided between the bottom end of the feed pipe 801 and the top of the aggregate hopper 701. The sleeve 806 is sleeved on the outside of the spiral blade 803 and fixedly installed with the spiral blade 803. A notch is provided on the circumferential surface of the sleeve 806. A horizontal plate 807 is fixedly installed on the circumferential surface of the sleeve 806. The horizontal plate 807 is attached to the inner wall of the lower half of the secondary screening assembly 700. When the rotating shaft 802 and the spiral blade 803 rotate, the sleeve 806 and the horizontal plate 807 are driven to rotate synchronously. The horizontal plate 807 pushes the stones at the center of the aggregate hopper 701 and allows the stones to enter the sleeve 806. The spiral blade 803 can transport the stones upward more stably. A brush plate 808 is fixedly installed on the top of the horizontal plate 807. The brush plate 808 is attached to the inner wall of the upper half of the secondary screening assembly 700. The bottom array of the brush plate 808 is provided with an avoidance groove 809, and the blocking ring 703 passes through the avoidance groove 809. Thus, the brush plate 808 sweeps over the blocking ring 703, pushing the stones trapped by the blocking ring 703 to move, so that the stones can pass through the plurality of sieve holes 702, thereby ensuring the screening effect. Under the pushing action of the brush plate 808, the stones trapped by the blocking ring 703 gradually gather and fall over the blocking ring 703.

[0039] When in use, the ore is fed into the cylindrical shell 100 through the feeding hopper 202, and under the guidance of the connecting ring 601, the shielding cone head 804 and the cone cover 500, the ore falls on the top of the annular support 400 and the annular screen plate 300;

[0040] The reducer 204 and the motor 205 cooperate with the driving gear 206 to drive the ring gear 203 to rotate, thereby driving the rotating ring 201 and the feeding hopper 202 to rotate, and the connecting ring 601 rotates synchronously with the rotating ring 201, so that the roller 603 rolls on the top of the annular bracket 400 to crush the ore, and the ore on the top of the annular screen plate 300 is pushed to the annular bracket 400 through the push plate 604;

[0041] The crushed stones move toward the top of the annular screen plate 300 due to the collision and squeezing between the stones, and fall downward through the screen hole 1 301;

[0042] The stones that fall into the aggregate hopper 701 slide downward along the inner wall of the aggregate hopper 701, some of the stones are intercepted by the blocking ring 703, and some of the stones pass through the sieve hole 2 702 and fall on the top of the guide inclined plate 103, and are discharged from the discharge pipe 104 under the guidance of the guide inclined plate 103;

[0043] When the connecting ring 601 rotates, the connecting action of the cross beam 805 drives the shielding cone head 804, the rotating shaft 802 and the spiral blade 803 to rotate, and the brush plate 808 sweeps over the blocking ring 703 to gather the stones, and makes the stones pass over the blocking ring 703 and fall to the center of the gathering hopper 701; the stones are then pushed by the cross plate 807 to enter the inside of the sleeve 806, and then the spiral blade 803 rotates to move the stones along the sleeve 806 and the feeding pipe 801 to the top of the cone cover 500, and then, under the guidance of the cone cover 500, they fall again on the top of the annular bracket 400, and the roller 603 crushes the stones again.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating crushing and screening machine, comprising a cylindrical shell (100), characterized in that: The top of the cylindrical shell (100) is rotatably connected to a feeding assembly (200); an annular screen plate (300) is fixedly mounted on the inner wall of the upper half of the cylindrical shell (100); an annular support (400) is fixedly mounted on the inner wall of the annular screen plate (300); a conical cover (500) is fixedly mounted on the inner wall of the annular support (400); a rolling assembly (600) is affixed to the top of the annular support (400); a secondary screening assembly (700) is fixedly mounted on the inner wall of the middle part of the cylindrical shell (100); a feeding assembly (800) is provided through the center of the conical cover (500); and the bottom end of the feeding assembly (800) is rotatably connected to the center of the secondary screening assembly (700).

2. The circulating crushing and screening machine according to claim 1, characterized in that: A support ring (101) and a mounting plate (102) are fixedly mounted on the outer wall of the upper half of the cylindrical shell (100), and the mounting plate (102) is located at the lower side of the support ring (101). A guide inclined plate (103) is fixedly mounted on the inner wall of the bottom of the cylindrical shell (100), and the guide inclined plate (103) gradually decreases from left to right. A discharge pipe (104) is fixedly mounted on the side surface of the bottom of the cylindrical shell (100), and the discharge pipe (104) corresponds to the lowest point on the upper surface of the guide inclined plate (103).

3. The circulating crushing and screening machine according to claim 2 is characterized in that: The feeding assembly (200) comprises a rotating ring (201) sleeved on the outer side of the top end of the cylindrical shell (100); the rotating ring (201) is fitted on the top of the supporting ring (101); a feeding hopper (202) is integrally formed on the top of the rotating ring (201); the feeding hopper (202) is in the shape of an hourglass; a ring gear (203) is fixedly mounted on the outer wall of the bottom end of the rotating ring (201); a reducer (204) is fixedly mounted on the bottom of the mounting plate (102); a motor (205) is fixedly mounted on the bottom input end of the reducer (204); a gear (206) is fixedly mounted on the top output end of the reducer (204); and the gear (206) is meshed with the ring gear (203).

4. The circulating crushing and screening machine according to claim 1, characterized in that: The surface array of the annular sieve plate (300) is penetrated by a sieve hole one (301), and the secondary screening assembly (700) includes a gathering hopper (701) fixedly mounted on the inner wall of the cylindrical shell (100), the gathering hopper (701) is located below the annular sieve plate (300), the inner diameter of the gathering hopper (701) gradually decreases from top to bottom, and the upper half of the gathering hopper (701) is penetrated by an array of sieve holes two (702), the aperture of the sieve hole two (702) is smaller than the aperture of the sieve hole one (301).

5. The circulating crushing and screening machine according to claim 4 is characterized in that: A plurality of concentric blocking rings (703) are fixedly mounted on the inner wall of the upper half of the aggregation hopper (701).

6. The circulating crushing and screening machine according to claim 1, characterized in that: The rolling assembly (600) includes a connecting ring (601) fixedly mounted on the inner wall of a rotating ring (201), the inner diameter of the connecting ring (601) gradually decreasing from top to bottom, an arch frame (602) is fixedly mounted in an array at the bottom of the connecting ring (601), a rolling roller (603) is rotatably connected to the bottom of the arch frame (602), the rolling roller (603) is attached to the top of an annular bracket (400), a push plate (604) is fixedly mounted in an array at the top of the connecting ring (601), and the push plate (604) is attached to the top of the annular screen plate (300).

7. The circulating crushing and screening machine according to claim 6, characterized in that: The number of the arched frames (602) and the pusher plates (604) are equal and are spaced apart at the bottom of the connecting ring (601). A spring (605) is fixedly mounted on the top wall of the arched frame (602). A dust scraper plate (606) is fixedly mounted on the bottom of the spring (605). The dust scraper plate (606) is attached to the top of the roller (603).

8. The circulating crushing and screening machine according to claim 6, characterized in that: The feeding assembly (800) includes a feeding pipe (801) passing through and fixed at the center of the conical cover (500), a rotating shaft (802) is arranged along the axis of the feeding pipe (801), a spiral blade (803) is welded on the surface of the rotating shaft (802), a shielding cone head (804) is fixedly installed on the top of the rotating shaft (802), a crossbeam (805) is fixed on the circumferential array of the shielding cone head (804), and the other end of the crossbeam (805) is fixedly installed on the inner wall of the connecting ring (601), the bottom end of the rotating shaft (802) passes through and is rotatably connected to the center of the secondary screening assembly (700), and the spiral blade (803) is attached to the top center of the secondary screening assembly (700).

9. The circulating crushing and screening machine according to claim 8: a sleeve (806) is arranged between the bottom end of the feeding pipe (801) and the top of the collecting hopper (701), the sleeve (806) is sleeved on the outside of the spiral blade (803) and fixedly installed with the spiral blade (803), a notch is opened through the circumferential surface of the sleeve (806), a transverse plate (807) is fixedly installed on the circumferential surface of the sleeve (806), the transverse plate (807) is attached to the inner wall of the lower half of the secondary screening component (700), a brush plate (808) is fixedly installed on the top of the transverse plate (807), the brush plate (808) is attached to the inner wall of the upper half of the secondary screening component (700), an avoidance groove (809) is opened through the bottom array of the brush plate (808), and the blocking ring (703) passes through the avoidance groove (809).

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