CN114769118A

CN114769118A - Coal screening equipment for coal mining

Info

Publication number: CN114769118A
Application number: CN202210394941.2A
Authority: CN
Inventors: 张金金; 米蛟; 訾龙; 杜航; 张嘉晨
Original assignee: Shaanxi Zhuyuan Jiayuan Mining Co ltd
Current assignee: Shaanxi Zhuyuan Jiayuan Mining Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-07-22

Abstract

The application provides a be used for coal mining coal screening installation relates to coal screening installation technical field, including screening subassembly and impact subassembly. The screening subassembly is including casing, sieve, locating part and collecting box, the impact subassembly is including elastic component, drift, driving piece and thumb wheel pole. This application stirs elastic component accumulation potential energy and strikes the sieve fast through the drift through the thumb wheel pole, to sieve formation impact effect, sieve and bracing piece striking, have solved the condition that the sieve is blockked up by the coal cinder, have realized the effect of abundant screening, through having adopted the collecting box that leaks hopper-shaped, the problem of the inconvenient turnover of coal cinder after having solved the screening, the effect of the coal cinder loading of unloading fast after having realized the screening.

Description

Coal screening equipment for coal mining

Technical Field

The application relates to the technical field of coal screening equipment, in particular to coal screening equipment for coal mining.

Background

The screening is the operation of dividing the mixture with different particle sizes into various particle size grades through a screen surface with holes, the screening can be divided into the screening of different works such as independent screening, auxiliary screening, preparation screening, selection screening and the like, the screening work is mainly used for factories such as coal factories and mining sites, and the requirements of the factories on screening devices are higher and higher at any time due to the development of technologies.

In the production technology of coal in the current market, sometimes the coal particles need to be screened due to different sizes to distinguish the sizes, under the general condition, the coal is placed on a filter screen, the coal with the size required by people is obtained through screening, and sometimes the filter screen is easy to block due to excessive accumulation of materials on the filter screen, so that insufficient screening is caused.

In contrast, chinese patent application No. CN202122360141.2 discloses a closed coal screening device, which mainly comprises a bottom plate, two fixed plates fixedly connected to the upper surface of the bottom plate, a first rotating rod movably connected between the two fixed plates, a cam fixedly connected to the circumferential outer wall of the first rotating rod, a motor fixedly connected to the outer wall of one side of the fixed plate, and one end of the output shaft of the motor fixed to the rotating rod through the fixed plates, a fixed rod fixedly connected between the two fixed plates, a filter sieve movably connected to the circumferential outer wall of the fixed rod, a support rod fixedly connected between the two fixed plates and contacting with the filter sieve, a fixed block fixedly connected to the inner wall of one side of the two fixed plates, a spring fixedly connected to the upper surface of the fixed block, and a spring fixed to the filter sieve, so designed to realize the use by the cooperation of the cam and the spring, the motor drives the first rotating rod to rotate, the first rotating rod drives the cam to rotate, the protruding part of the cam can jack up the filter screen when rotating to the upper part, the cam rotates to the protruding part and enables the filter screen to be downward reset through the elastic force of the spring, the filter screen is enabled to move up and down, materials are vibrated, the filter screen is prevented from being blocked due to excessive materials, the problem that the materials on the filter screen are blocked due to excessive accumulation is solved, and through the matched use of the first missing gear and the second missing gear, the motor drives the first rotating rod to rotate, the first rotating rod drives the first missing gear to rotate, the gear of the first missing gear rotates to be meshed with the second missing gear to drive the second missing gear to rotate, the second missing gear drives the rotating rod to rotate, the rotating rod drives the material blocking plate to rotate, the materials in the material discharging pipe enter the filter screen, the device is enabled to carry out periodical discharging, and the problem that the materials are excessively accumulated can be prevented, and finally, the screened coal briquette enters a first material collecting box and a second material collecting box respectively.

However, in the process of implementing the technical solution in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:

1. the key point of vibration anti-blocking lies in that the impact force generated by vibration promotes the coal blocks blocked in the filter screen holes to fall off, and in the technology, the cam is linked with the material blocking disc, and the material blocking disc is used for blocking the coal blocks and cannot rotate fast, so the rotating speed of the cam is not enough, the filter screen can be attached to the cam to move up and down at a slow speed, sufficient impact force cannot be formed, and the anti-blocking effect is poor;

2. first material receiving box and second material receiving box are fixed setting, have collected the coal cinder after, are difficult to go out the convenient transportation of coal cinder wherein, influence overall screening efficiency.

Disclosure of Invention

In order to overcome current not enough, this application embodiment provides a be used for coal mining coal screening installation, it can solve the impact force that above-mentioned vibrations were prevented blockking up not enough and receive the problem of not being convenient for transport after the material.

The technical scheme adopted by the embodiment of the application for solving the technical problem is as follows: a coal screening device for coal mining comprises a screening assembly and an impact assembly.

The screening subassembly is including casing, sieve, locating part and collecting box, the locating part with shells inner wall fixed connection, sieve one end with the casing is articulated, the sieve other end with locating part swing joint, the collecting box is provided with two, two the collecting box all with casing fixed connection, two the collecting box is hourglass hopper-shaped and sets up, the impact assembly is including elastic component, drift, driving piece and thumb wheel pole, the elastic component with casing fixed connection, the drift with elastic component fixed connection, the driving piece with casing fixed connection, thumb wheel pole with the casing rotates to be connected, thumb wheel pole with driving piece fixed connection, thumb wheel pole with elastic component swing joint.

In a specific embodiment, the locating part is two bracing pieces, two bracing pieces all with shells inner wall fixed connection, the sieve is movable respectively and supports tightly in two bracing pieces.

In a specific embodiment, the elastic member includes a sleeve, a spring and a pull rod, the sleeve is fixedly connected with the housing, the pull rod movably penetrates through the sleeve, one end of the pull rod is fixedly connected with the punch, the other end of the pull rod is movably connected with the thumb wheel lever, the spring is movably sleeved on the pull rod, and two ends of the spring respectively abut against the punch and the sleeve.

In a specific embodiment, the elastic member further comprises a dust cover, the dust cover is movably sleeved on the spring and the pull rod, and two ends of the dust cover are fixedly connected with the punch and the sleeve respectively.

In a specific embodiment, the driving member includes a motor, a master gear a and a slave gear a, the motor is fixedly connected with the housing, the master gear a is fixedly connected with an output end of the motor, the slave gear a is fixedly connected with the dial rod, and the master gear a and the slave gear a are engaged.

In a specific embodiment, the screening assembly further comprises a blocking piece, each collecting box is provided with one blocking piece, and the blocking pieces are movably blocked in the through holes.

In a specific embodiment, the plugging member comprises a door plate and an electric push rod, the door plate is hinged to the collecting box, the door plate is movably plugged to the collecting box, one end of the electric push rod is hinged to the collecting box, and the other end of the electric push rod is hinged to the door plate.

In a specific embodiment, the screening assembly further comprises a support leg, and one support leg is fixedly connected to each of four corners of the housing.

In a specific embodiment, the screening assembly further comprises a throwing member, the throwing member comprises a material pipe and a gate, the material pipe is fixedly connected with the shell, and the gate is movably plugged in the material pipe.

In a specific embodiment, the screening assembly further includes a transmission member, the transmission member includes a connecting rod, a master gear B and a slave gear B, the connecting rod is rotatably connected to the housing, the connecting rod is fixedly connected to an output end of the motor, the master gear B is fixedly connected to the connecting rod, the slave gear B is fixedly connected to the gate, and the master gear B is engaged with the slave gear B.

The embodiment of the application has the advantages that:

1. owing to adopted thumb wheel pole, elastic component and drift, stir the elastic component through the thumb wheel pole and accumulate potential energy and strike the sieve through the drift is quick, to the sieve formation impact effect, sieve and bracing piece striking have solved the condition that the sieve is blockked up by the coal cinder, have realized the effect of abundant screening.

2. Due to the adoption of the funnel-shaped collecting box, the problem that the coal briquettes after being screened are inconvenient to turnover is solved, and the effect of quickly discharging and loading the coal briquettes after being screened is realized.

Drawings

FIG. 1 is a schematic structural diagram of a coal screening device for coal mining provided by an embodiment of the application;

FIG. 2 is a schematic structural diagram of an external view of a coal mining coal screening device according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a connection relationship between an elastic member and a thumb wheel lever according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 2 according to an embodiment of the present disclosure;

description of the main reference numerals:

100-a screening component; 110-a housing; 120-sieve plate; 130-a stop; 140-a collection bin; 150-a closure; 151-door panel; 152-an electric push rod; 160-leg; 170-a throwing member; 171-a material pipe; 172-gate; 180-a transmission member; 181-link; 182-main gear B; 183-slave gear B; 200-an impact assembly; 210-a resilient member; 211-a sleeve; 212-a spring; 213-a pull rod; 214-a dust cover; 220-a punch; 230-a driver; 231-a motor; 232-master gear a; 233-slave gear a; 240-thumb wheel lever.

Detailed Description

Technical scheme in the embodiment of this application is for solving the problem that the sewage treatment time after above-mentioned sewage flocculation and precipitation efficiency is slower and deposit receives filter screen change time restriction in the rose box easily, and the general thinking is as follows:

example 1:

referring to fig. 1-4, an apparatus for screening coal for coal mining includes a screening assembly 100 and an impact assembly 200.

Wherein, strike subassembly 200 owing to adopted thumb wheel pole 240, elastic component 210 and drift 220, stir elastic component 210 through thumb wheel pole 240 and accumulate the potential energy and strike sieve 120 fast through drift 220, form the impact effect to sieve 120, sieve 120 and bracing piece striking, the condition that sieve 120 is blockked up by the coal cinder has been solved, the effect of abundant screening has been realized, screening subassembly 100 is owing to adopted hourglass hopper-shaped collecting box 140, the inconvenient turnover's of the coal cinder after having solved the screening problem, the effect of the coal cinder loading of unloading fast after having realized the screening.

With reference to fig. 1 to 4, the screening assembly 100 includes a housing 110, a screening deck 120, a limiting member 130 and two collecting boxes 140, the limiting member 130 is fixedly connected to an inner wall of the housing 110, one end of the screening deck 120 is hinged to the housing 110, the other end of the screening deck 120 is movably connected to the limiting member 130, the two collecting boxes 140 are disposed, both the two collecting boxes 140 are fixedly connected to the housing 110, both the two collecting boxes 140 are disposed in a funnel shape, the impact assembly 200 includes an elastic member 210, a punch 220, a driving member 230 and a thumb wheel lever 240, the elastic member 210 is fixedly connected to the housing 110, the punch 220 is fixedly connected to the elastic member 210, the driving member 230 is fixedly connected to the housing 110, the thumb wheel lever 240 is rotatably connected to the housing 110, and the thumb wheel lever 240 is fixedly connected to the driving member 230, the thumb wheel lever 240 is movably connected with the elastic member 210. In an initial state, one end of the screen plate 120 is hinged, the other end of the screen plate 120 is located in the limiting member 130, the punch 220 does not contact the screen plate 120, the driving member 230 drives the thumb wheel lever 240 to rotate, the thumb wheel lever 240 contacts and dials the elastic member 210 to store energy, when the thumb wheel lever 240 continuously rotates and leaves the elastic member 210, the elastic member 210 quickly resets and extends out, the punch 220 impacts the screen plate 120, the screen plate 120 quickly bounces and impacts the limiting member 130, the screen plate 120 falls due to gravity and impacts the limiting member 130 again, impact force generated by two impacts is strong, and coal blocks blocked in the screen plate 120 can be effectively promoted to fall off, in the embodiment, a cushion block is arranged below the screen plate 120 and used for enabling a telescopic axis of the punch 220 to be perpendicular to an impact surface of the punch 220, so that impacts on the punch 220 and the elastic member 210 in other directions can be reduced as much as possible in an impact process, and reliability of the elastic member 210 is improved, the coal blocks with two specifications produced after screening respectively fall into the corresponding collecting boxes 140, the lower ends of the collecting boxes 140 are provided with through holes, and discharging can be conveniently carried out through the through holes by the aid of the leak-shaped arrangement.

Referring to fig. 1 and 3, the limiting member 130 is two support rods, both of which are fixedly connected to the inner wall of the casing 110, and the sieve plate 120 is movably abutted against the two support rods respectively. Two bracing pieces are located the upper and lower both sides of sieve 120 respectively, and under normal condition, sieve 120 takes on the bracing piece of below, is strikeed the back by drift 220 again, and sieve 120 upsprings the bracing piece that strikes the top, and sieve 120 whereabouts strikes the bracing piece of below once more afterwards, and like this, elastic component 210 works once, produces twice striking, and the impact force intensity that produces can effectively make the coal cinder of jam in the sieve 120 drop.

Referring to fig. 1 and 3, the elastic member 210 includes a sleeve 211, a spring 212, and a pull rod 213, the sleeve 211 is fixedly connected to the housing 110, the pull rod 213 movably penetrates through the sleeve 211, one end of the pull rod 213 is fixedly connected to the punch 220, the other end of the pull rod 213 is movably connected to the wheel-pulling rod 240, the spring 212 is movably sleeved on the pull rod 213, and two ends of the spring 212 respectively abut against the punch 220 and the sleeve 211. The sleeve 211 is fixedly connected with the inner wall of the shell 110 through a bracket, in an initial state, the punch 220 is not in contact with the sieve plate 120, when the thumb wheel lever 240 is in contact with and presses down the pull rod 213, the spring 212 contracts to accumulate potential energy, and along with the rotation of the thumb wheel lever 240, after the thumb wheel lever 240 leaves the pull rod 213, the spring 212 rebounds rapidly to push the punch 220 to cross a self reset line and then impact the sieve plate 120, so that the sieve plate 120 impacts two support rods one after another to generate two impacts.

Referring to fig. 3, the elastic member 210 further includes a dust cover 214, the dust cover 214 is movably sleeved on the spring 212 and the pull rod 213, and two ends of the dust cover 214 are respectively fixedly connected to the punch 220 and the sleeve 211. The space between the punch 220 and the sleeve 211 is exposed, particles can float and splash when the coal briquette is screened, the work of the spring 212 is affected, the corrugated dust cover 214 is used here, the inner part of the sleeve 211 can be kept clean, and the reliability of the elastic piece 210 is improved.

With continued reference to fig. 3, the driving member 230 includes a motor 231, a main gear a232 and a slave gear a233, the motor 231 is fixedly connected to the housing 110, the main gear a232 is fixedly connected to an output end of the motor 231, the slave gear a233 is fixedly connected to the dial rod 240, and the main gear a232 is meshed with the slave gear a 233. The motor 231 drives the wheel lever 240 to rotate through the engagement of the main gear a232 and the sub gear a233, so that the wheel lever 240 triggers the elastic member 210 once per one rotation, resulting in two impacts.

Referring to fig. 1 and 4, the screening assembly 100 further includes a blocking member 150, each collecting box 140 is provided with one blocking member 150, and the blocking member 150 is movably blocked in the through hole. The two collecting boxes 140 respectively correspond to the screened coal briquettes with two specifications, in the normal screening process, the collecting boxes 140 are blocked by the blocking pieces 150, dust can be prevented from leaking, the surrounding environment is kept clean, and the two blocking pieces 150 can achieve independent discharging work of the two collecting boxes 140.

Referring to fig. 4, the blocking member 150 includes a door panel 151 and an electric push rod 152, the door panel 151 is hinged to the collecting box 140, the door panel 151 is movably blocked on the collecting box 140, one end of the electric push rod 152 is hinged to the collecting box 140, and the other end of the electric push rod 152 is hinged to the door panel 151. The channel is opened at the lower end of the collection box 140, and the electric push rod 152 pushes the door panel 151 to block the channel, so as to achieve the effect of automatic opening.

Referring to fig. 2 and 4, the screening assembly 100 further includes legs 160, and one of the legs 160 is fixedly connected to each of four corners of the casing 110. The support legs 160 are used to support the entire device, so that containers such as an external cart can be placed under the collection box 140, and when the door panel 151 is opened, the vehicle can be conveniently unloaded.

Referring to fig. 1 and 3, the screening assembly 100 further includes a dropping member 170, the dropping member 170 includes a material pipe 171 and a gate 172, the material pipe 171 is fixedly connected to the housing 110, and the gate 172 is movably plugged in the material pipe 171. The gate 172 periodically opens and shuts the material pipe 171, realizes the effect of discontinuous feeding, reduces to throw material once too much, and the coal cinder is piled up on sieve 120, influences the screening effect.

Referring to fig. 3, the screening assembly 100 further includes a transmission member 180, the transmission member 180 includes a connecting rod 181, a main gear B182 and a slave gear B183, the connecting rod 181 is rotatably connected to the housing 110, the connecting rod 181 is fixedly connected to an output end of the motor 231, the main gear B182 is fixedly connected to the connecting rod 181, the slave gear B183 is fixedly connected to the shutter 172, and the main gear B182 is engaged with the slave gear B183. The motor 231 drives the main gear B182 to rotate through the connecting rod 181, and further drives the slave gear B183 to rotate, so that the gate 172 continuously deflects, and a periodic feeding effect is generated, wherein the impact and the periodic feeding are simultaneously driven by using one motor 231, the equipment cost can be reduced, and the utilization rate of the motor 231 can be improved.

When this application uses: the motor 231 drives the main gear B182 to rotate through the connecting rod 181, and further drives the driven gear B183 to rotate, so as to drive the gate 172 to continuously deflect, thereby generating the effect of periodic feeding, reducing the phenomenon that too much coal blocks are accumulated on the screen plate 120 due to excessive feeding once, thereby affecting the screening effect, meanwhile, the motor 231 drives the thumb wheel rod 240 to rotate through the meshing of the main gear A232 and the driven gear A233, so that the thumb wheel rod 240 contacts and presses down the pull rod 213, the spring 212 contracts to accumulate potential energy, after the thumb wheel rod 240 leaves the pull rod 213 along with the rotation of the thumb wheel rod 240, the spring 212 rebounds rapidly, the punch 220 is pushed to cross the self reset wire and then impacts the screen plate 120, so that the screen plate 120 impacts two support rods one after another, thereby generating two impacts, and the impact force is strong, thereby effectively promoting the coal blocks blocked in the screen plate 120 to fall off, and the two coal blocks screened by the screen plate 120 fall into the corresponding collecting boxes 140 respectively, the collecting box 140 is plugged by the door plate 151, dust can be prevented from leaking, the surrounding environment is kept clean, when unloading is needed, an external container such as a trolley is placed below the collecting box 140, the electric push rod is retracted to open the door plate 151, and coal briquettes fall into the container.

In conclusion, the shifting wheel rod 240 is used for shifting the elastic part 210 to accumulate potential energy and quickly impact the sieve plate 120 through the punch 220 to form an impact effect on the sieve plate 120, the sieve plate 120 is impacted with the support rod, the problem that the sieve plate 120 is blocked by coal blocks is solved, the effect of full screening is realized, the problem that the screened coal blocks are inconvenient to turnover is solved by adopting the funnel-shaped collecting box 140, and the effect of quickly unloading and loading the screened coal blocks is realized.

It should be noted that the specific model specifications of the electric push rod 152, the master gear B, the slave gear B, the spring 212, the dust cover 214, the motor 231, the master gear a232, and the slave gear a233 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the power push bar 152 and the motor 231 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims

1. A screening equipment for coal mining coal is characterized by comprising

The screening assembly comprises a shell, a sieve plate, two limiting parts and two collecting boxes, wherein the limiting parts are fixedly connected with the inner wall of the shell, one end of the sieve plate is hinged with the shell, the other end of the sieve plate is movably connected with the limiting parts, the two collecting boxes are both fixedly connected with the shell, and the two collecting boxes are both arranged in a funnel shape;

impact assembly, including elastic component, drift, driving piece and thumb wheel pole, the elastic component with casing fixed connection, the drift with elastic component fixed connection, the driving piece with casing fixed connection, thumb wheel pole with the casing rotates to be connected, thumb wheel pole with driving piece fixed connection, thumb wheel pole with elastic component swing joint.

2. The coal mining coal screening apparatus as claimed in claim 1, wherein said retaining member is two support rods, both of which are fixedly connected to the inner wall of said housing, and said screen plate is movably supported against both of said support rods.

3. The coal mining coal screening apparatus as claimed in claim 1, wherein said resilient member includes a sleeve, a spring and a pull rod, said sleeve is fixedly connected to said housing, said pull rod is movably inserted through said sleeve, one end of said pull rod is fixedly connected to said punch, the other end of said pull rod is movably connected to said thumb wheel, said spring is movably sleeved on said pull rod, and two ends of said spring are respectively abutted against said punch and said sleeve.

4. The coal mining coal screening apparatus as set forth in claim 3, wherein said resilient member further includes a dust shield movably received over said spring and said pull rod, said dust shield having opposite ends fixedly connected to said punch and said sleeve, respectively.

5. The coal mining coal screening apparatus as recited in claim 4, wherein said drive member includes a motor, a master gear A and a slave gear A, said motor is fixedly connected to said housing, said master gear A is fixedly connected to an output end of said motor, said slave gear A is fixedly connected to said thumb wheel lever, and said master gear A and said slave gear A are engaged.

6. The coal mining coal screening apparatus as recited in claim 5, wherein said screen assembly further includes a closure member, one of said closure members being disposed in each of said collection bins, said closure members being movably sealed to the through-holes.

7. The coal mining coal screening apparatus as set forth in claim 6, wherein said plugging member includes a door panel and a power rod, said door panel is hinged to said collection box, said door panel is movably plugged to said collection box, one end of said power rod is hinged to said collection box, and the other end of said power rod is hinged to said door panel.

8. The coal mining coal screening apparatus as set forth in claim 7, wherein said screening assembly further includes legs, one of said legs being fixedly attached to each of four corners of said housing.

9. The coal mining coal screening apparatus as recited in claim 8, wherein said screening assembly further includes a drop member, said drop member including a feed pipe and a gate, said feed pipe being fixedly connected to said housing, said gate being movably plugged to said feed pipe.

10. The coal mining coal screening apparatus as recited in claim 9, wherein said screening assembly further includes a drive member, said drive member including a connecting rod, a master gear B and a slave gear B, said connecting rod being rotatably connected to said housing, said connecting rod being fixedly connected to an output of said motor, said master gear B being fixedly connected to said connecting rod, said slave gear B being fixedly connected to said gate, said master gear B being in mesh with said slave gear B.