CN212596289U

CN212596289U - Automatic crushing and screening device for cullet

Info

Publication number: CN212596289U
Application number: CN202021545908.8U
Authority: CN
Inventors: 徐正本; 王宏彦
Original assignee: Shandong Lehejia Commodity Co ltd
Current assignee: Shandong Lehejia Commodity Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-26
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to an automatic screening plant that smashes of cullet, both ends respectively with cullet raw materials feed bin export reaches conveyer A, both ends that first reducing mechanism import links to each other respectively with first reducing mechanism export reaches conveyer B, both ends that second reducing mechanism import links to each other respectively with second reducing mechanism export reaches conveyer C, both ends that the screening plant import links to each other respectively with large granule feed bin export reaches conveyer D that cullet raw materials feed bin import links to each other, the screening plant has powder discharge gate, certified products discharge gate and large granule discharge gate, powder discharge gate, certified products discharge gate and large granule discharge gate are linked together with the feed inlet of powder feed bin, certified products feed bin and large granule feed bin respectively. The utility model discloses following beneficial effect has: the overall structure is simplified and the screening effect is good, so that the problem that the production quality is difficult to guarantee due to the fact that the particle size is large and the screening is not carried out after the glass is crushed is effectively solved.

Description

Automatic crushing and screening device for cullet

Technical Field

The utility model relates to an automatic screening plant that smashes of garrulous glass belongs to glass recovery and recycle technical field.

Background

Glass retrieves can also save raw materials except reducing the waste material, slows down numerous advantages such as the exploitation process in mine, and the main efficiency of glass retrieval embodies: energy consumption and decarburization are reduced, and about 1200 kg of raw material is required per 1000 kg of glass manufactured, and the 200 kg difference is mainly composed of carbon dioxide generated by decarburization of the raw material. In addition, the chemical reaction generated by melting glass is endothermic, the energy of the produced product can be saved by using the glass, and the energy can be saved by 2-3% by adding 10% of cullet in the glass batch.

The recovery process of the glass needs to be smashed, because the smashing granularity is different, the smashing is not carried out, the inside of the smashed glass still can remain partial grains with larger grain diameter and unqualified grains, if the smashing is not carried out, the quality of products produced by the smashed glass is difficult to ensure, and therefore the automatic smashing and screening device for the smashed glass is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: in order to solve one of the problems, the automatic crushing and screening device for the cullet is provided.

Automatic crushing and screening device of cullet, its characterized in that: comprises a cullet raw material bin, a first crushing device, a second crushing device, a screening device, a powder bin, a qualified product bin, a large particle bin, a conveyor A with two ends respectively connected with an outlet of the cullet raw material bin and an inlet of the first crushing device, a conveyor B with two ends respectively connected with an outlet of the first crushing device and an inlet of the second crushing device, a conveyor C with two ends respectively connected with an outlet of the second crushing device and an inlet of the screening device, and a conveyor D with two ends respectively connected with an outlet of the large particle bin and an inlet of the cullet raw material bin, the screening plant has powder discharge gate, certified products discharge gate and large granule discharge gate, powder discharge gate, certified products discharge gate and large granule discharge gate are linked together with the feed inlet of powder feed bin, certified products feed bin and large granule feed bin respectively.

Preferably, the screening device is multistage reciprocating sieve, including the sieve case, sieve incasement has the upper screen board and the lower sieve board that are parallel to each other, and the front end of sieve case is the import, and is linked together with the upper screen board, the tail end of sieve case has the powder discharge gate with the upper screen board intercommunication, and the qualified product discharge gate that is linked together with lower sieve board and the large granule discharge gate that is linked together with sieve case bottom plate, and the lower surface of sieve case bottom plate has vibrating motor.

Preferably, the first crushing device and the second crushing device are both provided with a gas collecting hood, smoke dust in the gas collecting hood is treated by a bag-type dust remover, a gas outlet of the bag-type dust remover is connected with an exhaust funnel, and the height of the exhaust funnel is 15 m.

Preferably, screening device is auger delivery formula screening plant, including the screening barrel that a plurality of screening section of thick bamboo monomers head and the tail concatenation formed, the lock has the left end apron on the free opening of screening section of thick bamboo of screening barrel leftmost end, the lock has the right-hand member apron on the free opening of screening section of thick bamboo of screening barrel rightmost end, the internal coaxial central pivot that is provided with of screening barrel, the one end of central pivot is run through the left end apron and is rotated with the left end bearing frame of fixing on the left end apron and be connected, the other end of central pivot is run through the right-hand member apron and is rotated with the right-hand member bearing frame of fixing on the right-hand member apron and be connected, and the winding has auger blade in the central pivot in the screening barrel, all has the sieve mesh on the free outer wall of every screening section of thick bamboo, and a plurality of screening section of thick bamboo monomers link together in proper.

Preferably, the screening cylinder comprises a first cylinder section, a second cylinder section, a third cylinder section and a fourth cylinder section which have the same inner diameter and are connected end to end, a left end cover plate is fixed on a left end opening of the first cylinder section, a right end cover plate is fixed on a right end opening of the fourth cylinder section, an outer sleeve A is arranged outside the second cylinder section, an outer sleeve B is arranged outside the third cylinder section, an outer sleeve C is arranged outside the fourth cylinder section, a first bin is enclosed between the outer sleeve A and the second cylinder section, a second bin is enclosed between the outer sleeve B and the third cylinder section, a third bin is enclosed between the outer sleeve C and the fourth cylinder section, first sieve holes, second outer sleeve sieve holes and third sieve holes are respectively arranged on the outer walls of the second cylinder section, the third cylinder section and the fourth cylinder section, and a first sieve hole, a second sieve hole and a third sieve hole are respectively arranged on the outer walls of the second cylinder section, the third cylinder section and the fourth cylinder section, The bottom of outer tube B and outer tube C has seted up powder discharge gate, certified products discharge gate and large granule discharge gate respectively, the feed inlet has been seted up at the top of first cylinder section, and the diameter of first sieve mesh is less than the diameter of second sieve mesh, and the diameter of second sieve mesh is less than the diameter of third sieve mesh.

Preferably, the left end and the right end of the first cylinder section are respectively provided with a first flange and a second flange, the two ends of the second cylinder section are respectively provided with a third flange and a fourth flange, the two ends of the third cylinder section are respectively provided with a fifth flange and a sixth flange, the two ends of the fourth cylinder section are respectively provided with a seventh flange and an eighth flange, the left end cover plate and the first flange are connected together through a bolt a, the second flange and the third flange are connected together through a bolt B, the fourth flange and the fifth flange are connected together through a bolt C, the sixth flange and the seventh flange are connected together through a bolt D, and the eighth flange and the right end cover plate are connected together through a bolt E.

Preferably, the outer edge of the third flange plate is provided with a connecting ring a coaxial with the second cylindrical body section, the outer edge of the fourth flange plate is provided with a connecting ring B coaxial with the second cylindrical body section, and two ends of the outer sleeve a are respectively sleeved on the connecting ring a and the connecting ring B.

Preferably, a power mechanism for driving the central rotating shaft to rotate is further fixed on the left end cover plate.

Preferably, the power mechanism comprises a motor mounting seat, a driving motor and an elastic coupling, the motor mounting seat is fixed on the end face of the left end cover plate, the driving motor is fixed at the top of the motor mounting seat, and a power output shaft of the driving motor is connected with the central rotating shaft through the elastic coupling.

Preferably, the driving motor is a gear reduction motor, and is a combination of a gear reduction box and a motor.

Preferably, the inner walls of the auger blade and the second cylinder section, the third cylinder section and the fourth cylinder section are in small clearance fit, the auger blade has high coaxial geometric tolerance precision, and the auger blade pushes the glass particles to advance.

Preferably, the conveyor a is a belt conveyor, and the conveyor B, the conveyor C and the conveyor D are all screw conveyors or belt conveyors; the conveyor D is a particle material hoister.

Preferably, the first crushing device is a jaw crusher and the second crushing device is a hammer crusher.

Preferably, star-shaped feeders are arranged at the bottoms of the cullet raw material bin, the powder bin, the qualified product bin and the large particle bin.

Preferably, a frequency converter communicated with the crushing motor is further arranged on the side wall of the first crushing device.

Preferably, the recycled glass is loaded into a cullet raw material bin through a loader, the recycled glass raw material is conveyed into a first crushing device through a conveyor A to be subjected to initial crushing, the glass processed by the first crushing device is conveyed to a second crushing device through a conveyor B to be subjected to refining crushing, the glass processed by the second crushing device is conveyed to a screening device through a conveyor C to be screened, the diameter of glass particles crushed by the first crushing device is smaller than 80mm, the diameter of glass particles crushed by the second crushing device is smaller than 50mm, the screening device divides the glass particle screen into three specifications of the diameter smaller than 2mm, the diameter smaller than 5-50mm and the diameter larger than 50mm, the glass particles smaller than 2mm enter a powder bin, the glass particles of 5-50mm enter a qualified product bin, and the glass particles larger than 50mm enter a large particle bin, and conveying the glass particles in the large particle bin to a cullet raw material bin through a conveyor D for reprocessing.

Compared with the prior art, the utility model discloses following beneficial effect has:

automatic crushing and screening device of cullet, overall structure retrencies and sieves effectually to effectual solved glass smash the back and then be difficult to guarantee production quality's problem because of the particle diameter is great and do not sieve.

The utility model discloses an automatic crushing and screening device of cullet, its screening plant is auger delivery formula screening plant, open driving motor, driving motor drives the rotation of center pivot, thereby drive the auger blade and rotate, in the first cylinder section is poured into through the feed inlet to the glass granule mixture, the auger blade promotes glass granule to go forward, enter the second cylinder section, through the screening of second cylinder section, tiny glass granule discharges into in outer tube A through the first sieve mesh, and discharge and collect through the powder discharge gate, the auger blade promotes the mixture of coarse glass granule and medium qualified glass granule to continue to go forward, enter the third cylinder section, through the screening of third cylinder section, medium qualified glass granule discharges into in outer tube B through the second sieve mesh, and discharge and collect through the qualified product discharge gate, the auger blade promotes coarse glass granule to continue to go forward, and (4) entering a fourth cylinder section, screening the fourth cylinder section, discharging coarse glass particles into an outer sleeve C through a third sieve hole, discharging and collecting the coarse glass particles through a large particle discharge hole, completing separation of coarse, medium and fine glass particles, and screening more uniformly and rapidly. Link together first cylinder section right-hand member and second cylinder section, establish the second cylinder section outside through establishing outer tube A cover, link together second cylinder section right-hand member and third cylinder section, establish the third cylinder section outside through establishing outer tube B cover, link together third cylinder section right-hand member and fourth cylinder section, establish in the fourth cylinder section outside through outer tube C cover, replace traditional screen cloth structure, outer tube A, outer tube B and outer tube C are dismantled more conveniently with the equipment, do benefit to the maintenance and maintain, it is durable more to durable, the utility model has the advantages of installation, convenient to use, easy maintenance.

Automatic crushing and screening device of cullet, its screening plant carries formula screening plant for the auger, the form of split type installation can be according to the free quantity of demand adjustment screening section of thick bamboo, satisfies different screening demands.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a first screening device according to a second embodiment;

FIG. 4 is a schematic structural diagram of a first screening device according to a second embodiment;

FIG. 5 is a schematic structural view of a second cylinder section according to an embodiment;

in the figure: 1. a cullet raw material bin 2, a conveyor A3, a first crushing device 4, a conveyor B5, a second crushing device 6, a conveyor C7, a screening device 8, a powder bin 9, a qualified product bin 10, a large particle bin 11, a conveyor D12, a screening cylinder 12.1, a first cylinder section 12.2, a second cylinder section 12.3, a third cylinder section 12.4, a fourth cylinder section 12.5, a feed inlet 12.6, an outer sleeve A12.7, an outer sleeve B12.8, an outer sleeve C12.9, a first sieve pore 12.10, a second sieve pore 12.11, a third sieve pore 12.12, a powder discharge outlet 12.13, a qualified product discharge outlet 12.14, a large particle discharge outlet 13, a left end cover plate 14, a right end cover plate 15, a central rotating shaft 16, a left end bearing seat 17, a right end bearing seat 18, a packing auger blade 19, a first flange 20, a second flange 20, a qualified product discharge outlet 12.14, a qualified, The device comprises a second flange plate 21, a third flange plate 22, a fourth flange plate 23, a fifth flange plate 24, a sixth flange plate 25, a seventh flange plate 26, an eighth flange plate 27, a connecting ring A28, a connecting ring B29 and a driving motor.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

the present invention is further described with reference to the following specific embodiments, which are not intended to limit the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Example one

As shown in fig. 1, the automatic cullet crushing and screening device comprises a cullet raw material bin 1, a first crushing device 3, a second crushing device 5, a screening device 7, a powder bin 8, a qualified product bin 9, a large particle bin 10, a conveyor a2 with two ends respectively connected with an outlet of the cullet raw material bin 1 and an inlet of the first crushing device 3, a conveyor B4 with two ends respectively connected with an outlet of the first crushing device 3 and an inlet of the second crushing device 5, a conveyor C6 with two ends respectively connected with an outlet of the second crushing device 5 and an inlet of the screening device 7, and a conveyor D11 with two ends respectively connected with an outlet of the large particle bin 10 and an inlet of the cullet raw material bin 1, wherein the screening device 7 is provided with a powder discharge port, a qualified product discharge port and a large particle discharge port, and the powder discharge port, the qualified product discharge port and the large particle discharge port are respectively connected with the powder bin 8 and the inlet of the, The qualified product bin 9 is communicated with the feed inlet of the large particle bin 10.

In this embodiment, the screening device 7 is a multistage vibrating screen, and comprises a screen box, an upper screen plate and a lower screen plate which are parallel to each other are arranged in the screen box, the front end of the screen box is an inlet and is communicated with the upper screen plate, the tail end of the screen box is provided with a powder discharge port communicated with the upper screen plate, a qualified product discharge port communicated with the lower screen plate and a large particle discharge port communicated with a bottom plate of the screen box, and the lower surface of the bottom plate of the screen box is provided with a vibrating motor; the first crushing device 3 and the second crushing device 5 are both provided with a gas collecting hood, wherein smoke dust in the gas collecting hood is treated by a bag-type dust remover, a gas outlet of the bag-type dust remover is connected with an exhaust funnel, and the height of the exhaust funnel is 15 m; the conveyor A2 is a belt conveyor, and the conveyor B4 and the conveyor C6 are both belt conveyors; the conveyor D11 is a particle elevator; the first crushing device 3 is a jaw crusher, and the second crushing device 5 is a hammer crusher; star-shaped feeders are arranged at the bottoms of the cullet raw material bin 1, the powder bin 8, the qualified product bin 9 and the large particle bin 10; and a frequency converter communicated with a crushing motor is also arranged on the side wall of the first crushing device 3.

The working principle of the embodiment is as follows: the method comprises the steps of loading recycled glass into a cullet raw material bin 1 through a loader, conveying the recycled glass raw material into a first crushing device 3 through a conveyor A2 for glass initial crushing, conveying the glass processed by the first crushing device 3 to a second crushing device 5 through a conveyor B4 for refining and crushing, conveying the glass processed by the second crushing device 5 to a screening device 7 through a conveyor C6 for screening the glass, wherein the diameter of glass particles crushed by the first crushing device 3 is smaller than 80mm, the diameter of glass particles crushed by the second crushing device 5 is smaller than 50mm, the screening device 7 divides the glass particle screen into three specifications of the diameter smaller than 2mm, the diameter of glass particles smaller than 5-50mm and the diameter of glass particles larger than 50mm, the glass particles smaller than 2mm enter a powder bin 8, the glass particles of 5-50mm enter a qualified product bin 9, the glass particles larger than 50mm enter a large particle bin 10, the glass particles in the large particle bin 10 are conveyed to the cullet raw material bin 1 through a conveyor D11 to be processed again.

In the second embodiment, referring to fig. 2-5, the difference from the first embodiment is that the screening device 7 is an auger conveying type screening device, and includes a screening cylinder 12 formed by splicing a plurality of screening cylinder monomers end to end, a left end cover plate 13 is fastened to an opening of the screening cylinder monomer at the leftmost end of the screening cylinder 12, a right end cover plate 14 is fastened to an opening of the screening cylinder monomer at the rightmost end of the screening cylinder 12, a central rotating shaft 15 is coaxially arranged in the screening cylinder 12, one end of the central rotating shaft 15 penetrates through the left end cover plate 13 and is rotatably connected with a left end bearing seat 16 fixed on the left end cover plate 13, the other end of the central rotating shaft 15 penetrates through the right end cover plate 14 and is rotatably connected with a right end bearing seat 17 fixed on the right end cover plate 14, auger blades 18 are wound on the central rotating shaft 15 in the screening cylinder 12, and each screening cylinder monomer has a screen hole on the outer wall, and the screening cylinder monomers are sequentially connected together from left to right according to the increasing sequence of the diameters of the screen holes; the screening cylinder 12 comprises a first cylinder section 12.1, a second cylinder section 12.2, a third cylinder section 12.3 and a fourth cylinder section 12.4 which are the same in inner diameter and connected end to end, a left end cover plate 13 is fixed on a left end opening of the first cylinder section 12.1, a right end cover plate 14 is fixed on a right end opening of the fourth cylinder section 12.4, an outer sleeve A12.6 is sleeved outside the second cylinder section 12.2, an outer sleeve B12.7 is sleeved outside the third cylinder section 12.3, an outer sleeve C12.8 is sleeved outside the fourth cylinder section 12.4, a first bin is enclosed between the outer sleeve A12.6 and the second cylinder section 12.2, a second bin is enclosed between the outer sleeve B12.7 and the third cylinder section 12.3, a third bin is enclosed between the outer sleeve C12.8 and the fourth cylinder section 12.4, and first cylinder 12.9.9 is respectively arranged on the outer wall of each of the sieve mesh of the second cylinder section 12.2, the third cylinder section 12.3 and the fourth cylinder section 12.4, The bottom of the outer sleeve A12.6, the bottom of the outer sleeve B12.7 and the bottom of the outer sleeve C12.8 are respectively provided with a powder discharge port 12.12, a qualified product discharge port 12.13 and a large particle discharge port 12.14, the top of the first cylinder section 12.1 is provided with a feed port 12.5, the diameter of the first sieve pore 12.9 is smaller than that of the second sieve pore 12.10, and the diameter of the second sieve pore 12.10 is smaller than that of the third sieve pore 12.11; a first flange 19 and a second flange 20 are respectively arranged at the left end and the right end of the first cylinder section 12.1, a third flange 21 and a fourth flange 22 are respectively arranged at the two ends of the second cylinder section 12.2, a fifth flange 23 and a sixth flange 24 are respectively arranged at the two ends of the third cylinder section 12.3, a seventh flange 25 and an eighth flange 26 are respectively arranged at the two ends of the fourth cylinder section 12.4, the left end cover plate 13 and the first flange 19 are connected together through a bolt A, the second flange 20 and the third flange 21 are connected together through a bolt B, the fourth flange 22 and the fifth flange 23 are connected together through a bolt C, the sixth flange 24 and the seventh flange 25 are connected together through a bolt D, and the eighth flange 26 and the right end cover plate 14 are connected together through a bolt E; the outer edge of the third flange disc 21 is provided with a connecting ring A27 which is coaxial with the second cylindrical section 12.2, the outer edge of the fourth flange disc 22 is provided with a connecting ring B28 which is coaxial with the second cylindrical section 12.2, and two ends of the outer sleeve A12.6 are respectively sleeved on the connecting ring A27 and the connecting ring B28; a power mechanism for driving the central rotating shaft 15 to rotate is further fixed on the left end cover plate 13; the power mechanism comprises a motor mounting seat, a driving motor and an elastic coupling, the motor mounting seat is fixed on the end face of the left end cover plate 13, the driving motor is fixed at the top of the motor mounting seat, and a power output shaft of the driving motor is connected with the central rotating shaft 15 through the elastic coupling; the driving motor is a gear reduction motor and is a combination of a gear reduction box and a motor; the inner walls of the auger blade 18 and the second cylinder section 12.2, the third cylinder section 12.3 and the fourth cylinder section 12.4 are in small clearance fit, and have higher coaxial geometric tolerance precision, and the auger blade 18 pushes the glass particles to advance.

The working principle of the embodiment is as follows: according to the requirement, the quantity of the screening cylinder monomers is adjusted, in the embodiment, the screening cylinder 12 comprises a first cylinder section 12.1, a second cylinder section 12.2, a third cylinder section 12.3 and a fourth cylinder section 12.4 which have the same inner diameter and are connected end to end, a driving motor is started, the driving motor drives a central rotating shaft 15 to rotate, so as to drive an auger blade 18 to rotate, a glass particle mixture is poured into the first cylinder section 12.1 through a feeding hole 12.5, the auger blade 18 pushes glass particles to advance to enter the second cylinder section 12.2, fine glass particles are screened by the second cylinder section 12.2, the fine glass particles are discharged into an outer sleeve A12.6 through a first sieve hole 12.9 and are discharged and collected through a discharge hole 12.12, the auger blade 18 pushes a mixture of coarse glass particles and medium qualified glass particles to continue to advance to enter the third cylinder section 12.3, the medium qualified glass particles are screened by the third cylinder section 12.3, and the medium qualified glass particles are discharged into an outer sleeve B12.7 through a second sieve hole 12.10, and is discharged and collected through a qualified product discharge port 12.13, the auger blade 18 pushes the coarse glass particles to continuously advance, enter a fourth cylinder section 12.4, pass through the screening of the fourth cylinder section 12.4, the coarse glass particles are discharged into an outer sleeve C12.8 through a third sieve hole 12.11, and are discharged and collected through a large particle discharge port 12.14 (the diameters of a first sieve hole 12.9, a second sieve hole 12.10 and a third sieve hole 12.11 are set according to requirements, wherein the diameter of the third sieve hole 12.11 is large enough to avoid the situation that the coarse glass particles cannot be discharged to cause accumulation in the fourth cylinder section 12.4), and the separation of the coarse, medium and fine glass particles is completed.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic screening plant that smashes of cullet which characterized in that: comprises a cullet raw material bin (1), a first crushing device (3), a second crushing device (5), a screening device (7), a powder bin (8), a qualified product bin (9), a large particle bin (10), a conveyor A (2) with two ends respectively connected with an outlet of the cullet raw material bin (1) and an inlet of the first crushing device (3), a conveyor B (4) with two ends respectively connected with an outlet of the first crushing device (3) and an inlet of the second crushing device (5), a conveyor C (6) with two ends respectively connected with an outlet of the second crushing device (5) and an inlet of the screening device (7), and a conveyor D (11) with two ends respectively connected with an outlet of the large particle bin (10) and an inlet of the cullet raw material bin (1), wherein the screening device (7) is provided with a powder discharge port, a qualified product discharge port and a large particle discharge port, the powder material outlet, the qualified product outlet and the large particle outlet are respectively communicated with the powder material bin (8), the qualified product bin (9) and the large particle bin (10).

2. The automatic cullet crushing and screening device of claim 1, wherein: screening plant (7) are multistage reciprocating sieve, including the sieve case, sieve incasement has the upper screen board and the lower sieve board that are parallel to each other, and the front end of sieve case is the import, and is linked together with the upper screen board, the tail end of sieve case has the powder discharge gate that communicates with the upper screen board, and the qualified product discharge gate that communicates with lower sieve board and the large granule discharge gate that is linked together with sieve case bottom plate, and the lower surface of sieve case bottom plate has vibrating motor.

3. The automatic cullet crushing and screening device of claim 2, wherein: the first crushing device (3) and the second crushing device (5) are both provided with gas collecting hoods, smoke dust in the gas collecting hoods is treated by a bag-type dust remover, a gas outlet of the bag-type dust remover is connected with an exhaust funnel, and the height of the exhaust funnel is 15 m.

4. The automatic cullet crushing and screening device of claim 3, wherein: screening plant (7) is auger conveying formula screening plant, including screening barrel (12) that a plurality of screening section of thick bamboo monomers end to end splice formed, the free opening of screening section of thick bamboo at the leftmost end of screening barrel (12) goes up the lock and has left end cover board (13), the free opening of screening section of thick bamboo at the rightmost end of screening barrel (12) goes up the lock and has right-hand member apron (14), coaxial central pivot (15) that is provided with in screening barrel (12), the one end of central pivot (15) runs through left end cover board (13) and is connected with the left end bearing frame (16) rotation of fixing on left end cover board (13), the other end of central pivot (15) runs through right end cover board (14) and is connected with right-hand member bearing frame (17) rotation of fixing on right end cover board (14), and the winding has auger blade (18) on central pivot (15) in screening barrel (12), all has the sieve mesh on the free outer wall of every screening section of thick bamboo, and the screening cylinder monomers are sequentially connected together from left to right according to the increasing sequence of the diameters of the screen holes.

5. The automatic cullet crushing and screening device of claim 4, wherein: the screening cylinder (12) comprises a first cylinder section (12.1), a second cylinder section (12.2), a third cylinder section (12.3) and a fourth cylinder section (12.4) which have the same inner diameter and are connected end to end, a left end cover plate (13) is fixed on a left end opening of the first cylinder section (12.1), a right end cover plate (14) is fixed on a right end opening of the fourth cylinder section (12.4), an outer sleeve A (12.6) is sleeved outside the second cylinder section (12.2), an outer sleeve B (12.7) is sleeved outside the third cylinder section (12.3), an outer sleeve C (12.8) is sleeved outside the fourth cylinder section (12.4), a first silo is surrounded between the outer sleeve A (12.6) and the second cylinder section (12.2), a second silo is surrounded between the outer sleeve B (12.7) and the third cylinder section (12.3), and a third silo is surrounded between the outer sleeve C (12.8) and the fourth cylinder section (12.4), the outer walls of the second cylinder section (12.2), the third cylinder section (12.3) and the fourth cylinder section (12.4) are respectively provided with a first sieve hole (12.9), a second sieve hole (12.10) and a third sieve hole (12.11), the bottoms of the outer sleeve A (12.6), the outer sleeve B (12.7) and the outer sleeve C (12.8) are respectively provided with a powder discharge hole (12.12), a qualified product discharge hole (12.13) and a large-particle discharge hole (12.14), the top of the first cylinder section (12.1) is provided with a feed hole (12.5), the diameter of the first sieve hole (12.9) is smaller than that of the second sieve hole (12.10), and the diameter of the second sieve hole (12.10) is smaller than that of the third sieve hole (12.11).

6. The automatic cullet crushing and screening device of claim 5, wherein: the conveyor A (2) is a belt conveyor, and the conveyor B (4), the conveyor C (6) and the conveyor D (11) are all spiral conveyors or belt conveyors; the conveyor D (11) is a particle material hoister.

7. The automatic cullet crushing and screening device of claim 6, wherein: the first crushing device (3) is a jaw crusher, and the second crushing device (5) is a hammer crusher.

8. The automatic cullet crushing and screening device of claim 7, wherein: the bottoms of the cullet raw material bin (1), the powder bin (8), the qualified product bin (9) and the large particle bin (10) are all provided with star-shaped feeders.

9. The automatic cullet crushing and screening device of claim 8, wherein: and a frequency converter communicated with the crushing motor is also arranged on the side wall of the first crushing device (3).

10. The automatic cullet crushing and screening device of claim 9, wherein: recycled glass is loaded into a cullet raw material bin (1) through a loader, recycled glass raw materials are conveyed into a first crushing device (3) through a conveyor A (2) to be subjected to initial crushing, the glass processed by the first crushing device (3) is conveyed to a second crushing device (5) through a conveyor B (4) to be subjected to refining crushing, the glass processed by the second crushing device (5) is conveyed to a screening device (7) through a conveyor C (6) to be screened, the diameter of glass particles crushed by the first crushing device (3) is smaller than 80mm, the diameter of glass particles crushed by the second crushing device (5) is smaller than 50mm, the screening device (7) divides the glass particles into three specifications of the diameter smaller than 2mm, the diameter of 5-50mm and the diameter of larger than 50mm, and the glass particles smaller than 2mm enter a powder bin (8), glass particles with the size of 5-50mm enter a qualified product bin (9), glass particles with the size larger than 50mm enter a large particle bin (10), and the glass particles in the large particle bin (10) are conveyed to a cullet raw material bin (1) through a conveyor D (11) to be processed again.