Coal briquette screening equipment with pre-crushing effect

Abstract

The utility model relates to the technical field of coal briquette screening, in particular to coal briquette screening equipment with a pre-crushing effect, which comprises a screening mechanism, the screening mechanism comprises a base, the top of the base is rotatably connected with a plurality of screening drums, the screening drums are fixedly connected and spliced end to end, the top of the base is fixedly connected with a protective shell and a limiting shell, and the protective shell is fixedly connected with the limiting shell. The inner wall of the protective shell is rotationally connected with a fixing ring, and a plurality of first crushing rods are fixedly connected between the inner walls of the fixing ring. According to the coal briquette screening device, the cleaning brush is slidably connected to the bottom of the limiting shell, the feeding pipe intermittently feeds coal briquettes into the sleeve, the fixing ring rotates in the moving process, the first crushing rod is matched with the second crushing rod to crush the large coal briquettes, advanced treatment is not needed, the screening efficiency is optimized, the multiple screening drums are rotationally matched with the spiral frame to gradually screen the coal briquettes, and the screening efficiency is improved. And through reciprocating downward movement of the cleaning brush, bristles extend into the screen drum to pull down the clamped coal briquettes, the screening effect of the screen drum is conveniently guaranteed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal block screening, in particular to a coal block screening device with a pre-crushing effect. Background Technique

[0002] Coal block screening is an important link in the coal processing process. The purpose of screening is to classify coal blocks according to their sizes to meet different industrial uses. Common screening devices include vibrating screens, drum screens, banana screens, etc. Vibrating screens are widely used due to their high efficiency and good screening effect. Screening process: When coal blocks pass through the screening device, larger coal blocks may be further broken, while smaller coal blocks may be directly used for combustion or other purposes. The screening efficiency is affected by various factors, including the humidity of coal blocks, the operating parameters of the screening device, the material and aperture of the screen mesh, etc. The hardness, humidity, and composition of coal blocks will all affect the screening effect. For example, coal blocks and coal slags with higher humidity may block the screen mesh during the screening process, resulting in a decline in the screening effect. And some screening devices do not have a crushing structure for larger coal blocks, and other equipment is needed to pre-crush the coal blocks and then put them into the screening device, which takes a lot of time and is not convenient to use. Content of the Utility Model

[0003] The purpose of the utility model is to provide a coal block screening device with a pre-crushing effect to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] A coal block screening device with a pre-crushing effect includes a screening mechanism. The screening mechanism includes a base. A plurality of screening cylinders are rotatably connected to the top of the base. The plurality of screening cylinders are fixedly connected and spliced end to end. A protective shell and a limiting shell are fixedly connected to the top of the base. A fixed ring is rotatably connected to the inner wall of the protective shell. A plurality of first crushing rods are fixedly connected between the inner walls of the fixed ring. One end of the protective shell is fixedly connected with a sleeve. A plurality of second crushing rods are fixedly connected between the inner walls of the sleeve. A cleaning brush is slidably connected to the bottom of the limiting shell. A driving module two for driving the cleaning brush to reciprocate is arranged inside the limiting shell. A driving module one for rotating the fixed ring is arranged inside the protective shell.

[0006] Furthermore: The sleeve is rotatably connected to the adjacent screening cylinder. A connecting shell is fixedly communicated with the outer wall of the sleeve. A feeding pipe is fixedly communicated with the outer wall of the connecting shell. A baffle is slidably connected inside the connecting shell. A first hydraulic rod is fixedly connected to the outer wall of the sleeve. The output end of the first hydraulic rod is fixedly connected to the outer wall of the baffle.

[0007] Preferably: A spiral frame is fixedly connected between the inner walls of the plurality of screening cylinders.

[0008] Furthermore, a plurality of limiting rods are fixedly connected to both sides of the cleaning brush, and the limiting rods penetrate through the limiting shell and are slidably connected thereto.

[0009] Furthermore, the first driving module includes a limiting cylinder fixedly connected to one side of the fixed ring. Adjusting arms are slidably connected to both inner walls of the protective shell. The adjusting arms are movably clamped with the limiting cylinder. Hydraulic rods II are fixedly connected to both inner walls of the protective shell. The output ends of the hydraulic rods II are fixedly connected to the adjacent adjusting arms. A clamping rod is fixedly connected to the inner wall of the protective shell. A spiral groove is formed on the outer wall of the limiting cylinder. The bottom end of the clamping rod is movably clamped with the spiral groove.

[0010] Furthermore, the second driving module includes a motor fixedly connected to one inner wall of the limiting shell. A limiting seat is rotatably connected to one outer wall of the limiting shell. The limiting seat is fixedly connected to the adjacent screening cylinder. An installation ring is fixedly connected to one side of the limiting seat. An internal gear ring is fixedly embedded in the inner wall of the installation ring. A gear I is fixedly sleeved on the output end of the motor. The gear I meshes with the internal gear ring.

[0011] Furthermore, an inclined gear ring is fixedly sleeved on the outer wall of the installation ring. A shaft rod I is rotatably connected to the inner wall of the limiting shell. A gear II is fixedly sleeved at the bottom end of the shaft rod I. The gear II meshes with the inclined gear ring. A connecting frame is slidably connected between both inner walls of the limiting shell. The bottom end of the connecting frame penetrates through the limiting shell and is fixedly connected to the cleaning brush. A reciprocating lead screw and a shaft rod II are rotatably connected between both inner walls of the limiting shell. The reciprocating lead screw penetrates through the connecting frame and is in threaded connection therewith. Gear IIIs are fixedly sleeved on the outer walls of the reciprocating lead screw and the shaft rod II. The two gear IIIs mesh with each other. Pulley wheels are fixedly sleeved on the outer walls of the shaft rod II and the shaft rod I, and the two pulley wheels are connected by a belt in a transmission manner.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By slidably connecting a cleaning brush at the bottom of the limiting shell, the feeding pipe intermittently feeds coal blocks into the sleeve. During the movement of the fixed ring, it rotates, and the first crushing rod cooperates with the second crushing rod to crush larger coal blocks without prior treatment, optimizing the screening efficiency. The plurality of screening cylinders rotate and cooperate with the spiral frame to gradually screen the coal blocks. Through the reciprocating downward movement of the cleaning brush, the bristles extend into the screening cylinder to pick off the stuck coal blocks, facilitating the guarantee of the screening effect of the screening cylinder and convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the side sectional structure of the limiting shell of the present utility model;

[0016] Figure 3 is a partial enlarged structural schematic diagram of part A in the present utility model Figure 2 ;

[0017] Figure 4 is a partial enlarged structural schematic diagram of part B in the present utility model Figure 2 ;

[0018] Figure 5 is a side sectional structural schematic diagram of the protective shell of the present utility model

[0019] In the figure: 10, screening mechanism; 11, base; 12, sieve cylinder; 121, spiral frame; 122, limit seat; 13, protective shell; 131, fixing ring; 132, first crushing rod; 14, sleeve; 141, feed pipe; 142, connecting shell; 143, baffle; 144, first hydraulic rod; 145, second crushing rod; 15, limit shell; 151, cleaning brush; 152, limit rod; 16, first driving module; 161, limit cylinder; 162, spiral groove; 163, clamping rod; 164, regulating arm; 165, second hydraulic rod; 17, second driving module; 171, motor; 172, first gear; 173, mounting ring; 1731, internal gear ring; 174, helical gear ring; 175, first shaft rod; 1751, second gear; 176, belt pulley; 177, connecting frame; 178, reciprocating lead screw; 1781, third gear; 179, second shaft rod Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0021] Please refer to Figures 1 to 5, in the embodiment of the present utility model, a coal block screening device with a pre-crushing effect includes a screening mechanism 10. The screening mechanism 10 includes a base 11. A plurality of screening cylinders 12 are rotatably connected to the top of the base 11. The plurality of screening cylinders 12 are fixedly connected and spliced end to end. A protective shell 13 and a limiting shell 15 are fixedly connected to the top of the base 11. A fixed ring 131 is rotatably connected to the inner wall of the protective shell 13. A plurality of first crushing rods 132 are fixedly connected between the inner walls of the fixed ring 131. One end of the protective shell 13 is fixedly connected with a sleeve 14. A plurality of second crushing rods 145 are fixedly connected between the inner walls of the sleeve 14. A cleaning brush 151 is slidably connected to the bottom of the limiting shell 15. A second driving module 17 for driving the cleaning brush 151 to reciprocate is arranged inside the limiting shell 15. A first driving module 16 for rotating the fixed ring 131 is arranged inside the protective shell 13. A spiral frame 121 is fixedly connected between the inner walls of the plurality of screening cylinders 12.

[0022] Specifically, by slidably connecting a cleaning brush 151 to the bottom of the limiting shell 15, the feed pipe 141 intermittently feeds coal blocks into the sleeve 14. During the movement of the fixed ring 131, it rotates, and the first crushing rods 132 cooperate with the second crushing rods 145 to crush larger coal blocks without prior treatment, optimizing the screening efficiency. The plurality of screening cylinders 12 rotate and cooperate with the spiral frame 121 to gradually screen the coal blocks. Through the reciprocating downward movement of the cleaning brush 151, the bristles extend into the screening cylinder 12 to pick off the stuck coal blocks, facilitating the guarantee of the screening effect of the screening cylinder 12 and being convenient to use. The spiral frame 121 is used to delay the downward movement process of the coal blocks and extend the screening time of the coal blocks. Embodiment 1

[0023] As Figure 5 shown, in this embodiment, the sleeve 14 is rotatably connected to the adjacent screening cylinder 12. A connecting shell 142 is fixedly communicated with the outer wall of the sleeve 14. A feed pipe 141 is fixedly communicated with the outer wall of the connecting shell 142. A baffle 143 is slidably connected inside the connecting shell 142. A first hydraulic rod 144 is fixedly connected to the outer wall of the sleeve 14. The output end of the first hydraulic rod 144 is fixedly connected to the outer wall of the baffle 143. A plurality of limiting rods 152 are fixedly connected to both sides of the cleaning brush 151. The limiting rods 152 penetrate through the limiting shell 15 and are slidably connected thereto.

[0024] In this embodiment, coal blocks are fed into the sleeve 14 through the feed pipe 141 and the connecting shell 142. Before the fixed ring 131 moves and cooperates with the second crushing rods 145 to crush the coal blocks, the first hydraulic rod 144 is started to drive the baffle 143 to block the feed pipe 141, so that the coal blocks are not discharged temporarily. The cleaning brush 151 is slidably limited through the cooperation of the plurality of limiting rods 152, so that the cleaning brush 151 can intermittently contact the screening cylinder 12, and the bristles extend into the screening cylinder 12 to pick off the stuck coal blocks.

[0025] As Figures 1 - 4As shown in the figure, in this embodiment, the driving module II 17 includes a motor 171 fixedly connected to an inner wall of the limiting housing 15. A limiting seat 122 is rotatably connected to an outer wall of the limiting housing 15. The limiting seat 122 is fixedly connected to the adjacent sieve cylinder 12. An installation ring 173 is fixedly connected to one side of the limiting seat 122. An internal gear ring 1731 is fixedly embedded in the inner wall of the installation ring 173. A first gear 172 is fixedly sleeved on the output end of the motor 171. The first gear 172 meshes with the internal gear ring 1731. An inclined gear ring 174 is fixedly sleeved on the outer wall of the installation ring 173. A first shaft rod 175 is rotatably connected to the inner wall of the limiting housing 15. A second gear 1751 is fixedly sleeved at the bottom end of the first shaft rod 175. The second gear 1751 meshes with the inclined gear ring 174. A connecting frame 177 is slidably connected between the two inner walls of the limiting housing 15. The bottom end of the connecting frame 177 penetrates through the limiting housing 15 and is fixedly connected to the cleaning brush 151. A reciprocating lead screw 178 and a second shaft rod 179 are rotatably connected between the two inner walls of the limiting housing 15. The reciprocating lead screw 178 penetrates through the connecting frame 177 and is in threaded connection with it. Third gears 1781 are fixedly sleeved on the outer walls of the reciprocating lead screw 178 and the second shaft rod 179. The two third gears 1781 mesh with each other. Pulley wheels 176 are fixedly sleeved on the outer walls of the second shaft rod 179 and the first shaft rod 175. And the two pulley wheels 176 are connected by a belt for transmission.

[0026] During specific implementation, start the motor 171 to drive the first gear 172 to rotate. Through the rotation of the first gear 172 and the internal gear ring 1731, drive the installation ring 173, the limiting seat 122 and the multiple sieve cylinders 12 to rotate, so as to cooperate with the spiral frame 121 to gradually screen the coal blocks. The installation ring 173 drives the inclined gear ring 174 to rotate. Through the rotation of the inclined gear ring 174 and the second gear 1751, drive the first shaft rod 175 to rotate. Through the transmission of the two pulley wheels 176, drive the second shaft rod 179 to rotate. Through the transmission of the two third gears 1781, drive the reciprocating lead screw 178 to rotate. The reciprocating lead screw 178 drives the connecting frame 177 to drive the cleaning brush 151 to reciprocate. Embodiment II

[0027] On the basis of Embodiment I, in order to be able to drive the fixed ring 131 to rotate self - rotatably during the movement, multiple first crushing rods 132 cooperate with the second crushing rods 145 to crush larger coal blocks, which is convenient for subsequent screening.

[0028] Such as Figure 5As shown, in this embodiment, the first driving module 16 includes a limiting cylinder 161 fixedly connected to one side of the fixed ring 131. On both inner walls of the protective shell 13, there is a sliding connection with a regulating arm 164. The regulating arm 164 is movably clamped with the limiting cylinder 161. On both inner walls of the protective shell 13, there is a fixedly connected second hydraulic rod 165. The output end of the second hydraulic rod 165 is fixedly connected to the adjacent regulating arm 164. On the inner wall of the protective shell 13, there is a fixedly connected clamping rod 163. On the outer wall of the limiting cylinder 161, there is a spiral groove 162. The bottom end of the clamping rod 163 is movably clamped with the spiral groove 162.

[0029] During specific implementation, simultaneously start the two second hydraulic rods 165 to drive the regulating arm 164 to move, thereby driving the limiting cylinder 161 and the fixed ring 131 to move. During the process, drive the limiting cylinder 161 to rotate through the transmission of the clamping rod 163 and the spiral groove 162, so that the fixed ring 131 rotates during the movement. Cooperate with the first crushing rod 132 and the second crushing rod 145 to crush larger coal blocks. The crushed coal blocks pass through the second crushing rod 145 and enter the inside of the sieve cylinder 12.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal block screening device with a pre-crushing effect, characterized in that, It includes a screening mechanism (10), the screening mechanism (10) includes a base (11), the top of the base (11) is rotatably connected with a plurality of screening cylinders (12), and the plurality of screening cylinders (12) are fixedly connected and spliced end to end. The top of the base (11) is fixedly connected with a protective shell (13) and a limiting shell (15). The inner wall of the protective shell (13) is rotatably connected with a fixed ring (131), and a plurality of first crushing rods (132) are fixedly connected between the inner walls of the fixed ring (131). One end of the protective shell (13) is fixedly connected with a sleeve (14), and a plurality of second crushing rods (145) are fixedly connected between the inner walls of the sleeve (14). The bottom of the limiting shell (15) is slidably connected with a cleaning brush (151), and a second driving module (17) for driving the cleaning brush (151) to reciprocate is arranged inside the limiting shell (15). A first driving module (16) for rotating the fixed ring (131) is arranged inside the protective shell (13).

2. The coal block screening device with pre-crushing effect according to claim 1, characterized in that, The sleeve (14) is rotatably connected with the adjacent screening cylinder (12). A connecting shell (142) is fixedly communicated with the outer wall of the sleeve (14). A feed pipe (141) is fixedly communicated with the outer wall of the connecting shell (142). A baffle (143) is slidably connected inside the connecting shell (142). A first hydraulic rod (144) is fixedly connected to the outer wall of the sleeve (14), and the output end of the first hydraulic rod (144) is fixedly connected to the outer wall of the baffle (143).

3. A coal block screening device with a pre-crushing effect according to claim 1, characterized in that, A spiral frame (121) is fixedly connected between the inner walls of the plurality of screening cylinders (12).

4. A coal block screening device with a pre-crushing effect according to claim 1, characterized in that A plurality of limiting rods (152) are fixedly connected to both sides of the cleaning brush (151), and the limiting rods (152) penetrate through the limiting shell (15) and are slidably connected with it.

5. A coal block screening device with a pre-crushing effect according to claim 1, characterized in that, The first driving module (16) includes a limiting cylinder (161) fixedly connected to one side of the fixed ring (131). Adjusting arms (164) are slidably connected to both inner walls of the protective shell (13). The adjusting arms (164) are movably clamped with the limiting cylinder (161). Second hydraulic rods (165) are fixedly connected to both inner walls of the protective shell (13), and the output ends of the second hydraulic rods (165) are fixedly connected to the adjacent adjusting arms (164). A clamping rod (163) is fixedly connected to the inner wall of the protective shell (13). A spiral groove (162) is formed on the outer wall of the limiting cylinder (161), and the bottom end of the clamping rod (163) is movably clamped with the spiral groove (162).

6. A coal block screening device with a pre-crushing effect according to claim 1, characterized in that, The second driving module (17) includes a motor (171) fixedly connected to one inner wall of the limiting shell (15). A limiting seat (122) is rotatably connected to one outer wall of the limiting shell (15). The limiting seat (122) is fixedly connected with the adjacent screening cylinder (12). An installation ring (173) is fixedly connected to one side of the limiting seat (122). An internal gear ring (1731) is fixedly embedded in the inner wall of the installation ring (173). A first gear (172) is fixedly sleeved on the output end of the motor (171), and the first gear (172) meshes with the internal gear ring (1731).

7. A coal block screening device with a pre-crushing effect according to claim 6, characterized in that A helical gear ring (174) is fixedly sleeved on the outer wall of the mounting ring (173). A first shaft rod (175) is rotatably connected to the inner wall of the limit shell (15). A second gear (1751) is fixedly sleeved at the bottom end of the first shaft rod (175). The second gear (1751) meshes with the helical gear ring (174). A connecting frame (177) is slidably connected between the two inner walls of the limit shell (15). The bottom end of the connecting frame (177) penetrates through the limit shell (15) and is fixedly connected to the cleaning brush (151). A reciprocating lead screw (178) and a second shaft rod (179) are rotatably connected between the two inner walls of the limit shell (15). The reciprocating lead screw (178) penetrates through the connecting frame (177) and is in threaded connection with it. Third gears (1781) are fixedly sleeved on the outer walls of the reciprocating lead screw (178) and the second shaft rod (179). The two third gears (1781) mesh with each other. Pulley wheels (176) are fixedly sleeved on the outer walls of the second shaft rod (179) and the first shaft rod (175), and the two pulley wheels (176) are connected by a belt in a transmission manner.

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