CN112374058B

CN112374058B - Bulk material constant feeder

Info

Publication number: CN112374058B
Application number: CN202110059817.6A
Authority: CN
Inventors: 张忠山; 刘健; 刘永革; 孙法迁; 张萌; 张永; 吴玉辉; 刘晓美; 谭超杰; 张连俊; 高建红; 马金晶; 井帅; 王欣; 张栋; 李洋; 段衍清; 谭磊; 张兴华; 柳吉辉
Original assignee: Shandong Wanda Environmental Technology Co ltd
Current assignee: Shandong Wanda Environmental Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-04-20
Anticipated expiration: 2041-01-18
Also published as: CN112374058A

Abstract

The utility model provides a bulk material batcher, including the U-shaped frame of invering, the top surface outer wall fixed mounting screw feeder of U-shaped frame, the one end of screw feeder's discharge gate fixed connection charge-in pipeline, U-shaped frame inside is equipped with first pipeline and second pipeline, first pipeline suit is in the periphery of first pipeline and sliding contact cooperation with it, the upper end of first pipeline and the lower extreme of second pipeline are fixed mounting controlling means respectively, every controlling means comprises fixed disc, the activity disc, the through-hole, the several blend stop, the first spout slider structure of several, several second spout slider structure and several third spout slider structure. Firstly, the material volume that this device discharged at every turn equals the material volume that first pipeline and second pipeline stored, can realize the ration discharge, and secondly this device can adjust the material volume that first pipeline and second pipeline stored through adjusting electric push rod, and then adjusts the material volume that discharges at every turn, and control is convenient.

Description

Bulk material constant feeder

Technical Field

The invention belongs to the field of feeders, and particularly relates to a bulk material constant feeder.

Background

Quick lime's feed is gone on through star type tripper more, when material downstream to the impeller of star type tripper on, the slew velocity of impeller can be accelerated to the pressure that the material produced, thereby make the quantity of impeller pay-off at every turn produce certain gap, influence production, be difficult to control the quantity of pay-off at every turn, the inside radiating effect of star type tripper is poor, use for a long time easily to burn out the motor and can't adjust the quantity of pay-off at every turn, and the wet process-quick lime method desulfurization technology that domestic more boiler desulfurization adopted, during the material gets into star type tripper, the steam in the material easy absorbed gas, and then make the material caking stop up star type tripper jam card and die, make machine fault.

Disclosure of Invention

The invention provides a bulk material constant feeder, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a quantitative feeder for bulk materials comprises an inverted U-shaped frame, wherein a spiral feeder is fixedly installed on the outer wall of the top surface of the U-shaped frame, a discharge port of the spiral feeder is fixedly connected with one end of a feeding pipeline, a first pipeline and a second pipeline are arranged in the U-shaped frame, the second pipeline is sleeved on the periphery of the first pipeline and is in sliding contact fit with the first pipeline, the upper end of the first pipeline and the lower end of the second pipeline are respectively and fixedly provided with a control device, each control device comprises a fixed disc, a movable disc, a through hole, a plurality of barrier strips, a plurality of first chute slider structures, a plurality of second chute slider structures and a plurality of third chute slider structures, the upper end of the first pipeline and the lower end of the second pipeline are respectively and fixedly provided with a fixed disc, the fixed disc and the movable disc are connected through a bearing and a torsion spring, the vertical central lines are collinear, and the centers of the, the lower end bearing of the feeding pipeline is connected with the center of the top surface of the movable disc positioned above, a filter screen is fixedly arranged in a through hole of the fixed disc positioned above, a plurality of barrier strips are positioned between the fixed disc and the movable disc, each first chute slide block structure is composed of a first chute and a first slide block, each first chute is arranged in the middle of one surface, close to the fixed disc, of the corresponding barrier strip, each first slide block is fixedly connected with the fixed disc, each first slide block is positioned in the corresponding first chute and can slide along the first chute, each second chute slide block structure is composed of a second chute and a second slide block, each second slide block is fixedly arranged on the outer side, close to one surface of the fixed disc, of the corresponding barrier strip, each second slide block is positioned in the corresponding second chute and can slide along the second chute, each third chute slide block structure is composed of a third chute and a third slide block, each third sliding block is fixedly arranged on the outer side of the corresponding barrier strip close to one side of the movable disc, the third sliding grooves are formed in the movable disc, the third sliding blocks are respectively positioned in the corresponding third sliding grooves and are in sliding fit with the corresponding third sliding grooves, one side of the fixed disc is respectively and fixedly connected with one side of a fixed plate, the two fixed plates are connected through an electric push rod, the other side of the fixed plate positioned on the upper side is fixedly connected with the inner wall of one side of the U-shaped frame, the other side of the fixed plate positioned on the lower side is fixedly connected with a fourth sliding block, a vertical fourth sliding groove is formed in the inner wall of one side of the U-shaped frame, the fourth sliding block is positioned in the fourth sliding groove and can slide along the fourth sliding groove, a first motor is fixedly arranged on the inner wall of the other side of the U-shaped frame, the output shaft of the first motor is fixedly connected with the rear end of a, the one end fixed mounting fifth slider of telescopic link, fore-and-aft fifth spout is seted up to the inner wall opposite side of U-shaped frame, the fifth slider is located the fifth spout and can follows it and slide, the other end fixed mounting sliding sleeve of telescopic link, be equipped with an arc pole in the sliding sleeve and sliding fit with it, the both ends of arc pole are the sixth slider of fixed mounting respectively, two vertical slide rails of periphery fixed mounting of second pipeline, the sixth slider is located the slide that can follow in the slide rail that corresponds respectively, the top surface and the bottom surface of sliding sleeve are the fixed mounting montant respectively, the opposite side fixed mounting driving lever of activity disc, the driving lever contacts with the montant that corresponds respectively.

As above a bulk material constant feeder, screw feeder constitute by feeder hopper, second motor and hob, feeder hopper fixed mounting is in the top surface outer wall of U-shaped frame, feeder hopper one side outer wall fixed mounting second motor, the output shaft of second motor runs through feeder hopper one side outer wall and is connected with its bearing, the output of second motor and the one end fixed connection of hob, the other end of hob passes through the bearing with the opposite side inner wall of feeder hopper and is connected, feed channel runs through the top surface inner wall of U-shaped frame, feed channel's one end runs through one side outer wall bottom surface of feeder hopper and fixed connection with it.

According to the bulk material constant feeder, the opposite surfaces of the two fixed disks are both concave structures.

According to the bulk material constant feeder, the first motor is a servo motor, and the first motor is connected with the controller through a circuit.

According to the bulk material constant feeder, the electric push rod and the second motor are respectively in circuit connection with the controller.

According to the bulk material constant feeder, the front end of the screw is connected with the inner wall of the other side of the U-shaped frame through the bearing seat.

The invention has the advantages that: the device is used for feeding quicklime, a user adjusts the length of an electric push rod and adjusts the gap between two fixed disks, and further adjusts the material quantity which can be stored between a first pipeline and a second pipeline, the user adds materials into a spiral feeder, the user opens a first motor and controls the forward rotation of an output shaft of the motor, the output shaft of the first motor rotates to drive a screw rod to rotate, the screw rod rotates to drive a screw sleeve to move forward, the screw sleeve moves forward to drive a sliding sleeve to move forward along an arc-shaped rod through a telescopic rod, the sliding sleeve moves forward to drive a vertical rod to move forward, and further drives a movable disk positioned above through the shift rod to rotate and deform a torsional spring positioned in an upper control device, the movable disk positioned above rotates to drive each barrier strip to rotate through each third chute slider structure, and the barrier strips rotate and move outwards through the second chute slider structures and the third chute slider structures, and then make the interval appear between each barrier strip, the screw feeder sends the material into the feed conduit, the material passes through the feed conduit and passes through the through-hole of the controlling means located above and the interval between each barrier strip and passes through the filter screen, and then enter into the space of the first pipeline and second pipeline, the user controls the output shaft of the first motor to change the direction of rotation constantly, and then can make the swivel nut reciprocate back and forth on the first half of the screw rod, under the effect of torsional spring force, can make the reciprocating rotation that the movable disc located above does not stop, and then can make the interval between each barrier strip located in the controlling means above change, and then can make the barrier strip crush the quicklime caked above the filter screen, after the quicklime fills up the first pipeline and second pipeline, the user controls the output shaft of the first motor to rotate reversely, and then can make the swivel nut move backwards, the movable disc positioned above is reset under the action of torsional spring force, the barrier strips positioned in the control device above are enabled to block the through hole, materials cannot pass through the control device above, the screw sleeve continuously moves backwards, the movable disc positioned below is further enabled to rotate, gaps can be formed among the barrier strips positioned below, the materials in the first pipeline and the second pipeline are discharged under the action of gravity and enter the next process, after the materials are discharged, a user controls the first motor to rotate in the forward direction and enables the screw sleeve to return to the middle position of the screw rod, the movable disc positioned below is reset under the action of torsional spring force, further the barrier strips positioned below are reset, compared with a star-shaped discharger, firstly, the material amount discharged each time of the device is equal to the material amount stored in the first pipeline and the second pipeline, quantitative discharge can be realized, secondly, the device can adjust the material amount stored in the first pipeline and the second pipeline through the electric-saving push rod, and then adjust discharge material volume at every turn, and control is convenient, once more, the first motor of this device need not carry out the work that lasts, and working strength is low, be difficult to burn out, in addition, this device blocks the material through the blend stop, the condition that the blend stop carries out the motion under the action of gravity of material can not appear, avoid the material to spill, and in addition, the blend stop can be with the quick lime crushing of filter screen top caking, the condition of the quick lime of avoiding appearing the caking blockking the filter screen, in this device feeding process, the controlling means who is located the below can block the steam in the follow-up process, reduce quick lime caking phenomenon.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a portion of FIG. 1 from direction A; FIG. 3 is an enlarged view of a portion of FIG. 1 from the direction B; fig. 4 is an enlarged view of part i of fig. 1.

Reference numerals: 1. u-shaped frame, 2, feed channel, 3, first pipeline, 4, second pipeline, 5, fixed disc, 6, movable disc, 7, through hole, 8, barrier strip, 9, first chute, 10, first slider, 11, second chute, 12, second slider, 13, third chute, 14, third slider, 15, electric push rod, 16, fourth slider, 17, fourth chute, 18, first motor, 19, screw, 20, swivel nut, 21, telescopic link, 22, fifth slider, 23, fifth chute, 24, sliding sleeve, 25, arc rod, 26, sixth slider, 27, slide rail, 28, vertical rod, 29, deflector rod, 30, feed hopper, 31, second motor, 32, spiral rod

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A quantitative feeder for bulk materials comprises an inverted U-shaped frame 1, wherein a screw feeder is fixedly installed on the outer wall of the top surface of the U-shaped frame 1, a discharge port of the screw feeder is fixedly connected with one end of a feeding pipeline 2, a first pipeline 3 and a second pipeline 4 are arranged in the U-shaped frame 1, the second pipeline 4 is sleeved on the periphery of the first pipeline 3 and is in sliding contact fit with the first pipeline 3, control devices are respectively and fixedly installed at the upper end of the first pipeline 3 and the lower end of the second pipeline 4, each control device comprises a fixed disc 5, a movable disc 6, a through hole 7, a plurality of barrier strips 8, a plurality of first chute slider structures, a plurality of second chute slider structures and a plurality of third chute slider structures, a fixed disc 5 is respectively and fixedly installed at the upper end of the first pipeline 3 and the lower end of the second pipeline 4 in a collinear manner, the fixed disc 5 and the movable disc 6 are connected through a bearing and a torsional, the fixed disc 5 is fixedly connected with the outer ring of the bearing, the movable disc 6 is fixedly connected with the inner ring of the bearing, a torsional spring is arranged in the bearing and is positioned outside the barrier strips 8, one end of the torsional spring is fixedly connected with the fixed disc 5, the other end of the torsional spring is fixedly connected with the movable disc 6, the centers of the top surfaces of the fixed disc 5 and the movable disc 6 are respectively provided with a through hole 7, the lower end of the feeding pipeline 2 is connected with the center of the top surface of the movable disc 6 positioned above through holes 7 of the fixed disc 5, a plurality of barrier strips 8 are respectively positioned between the fixed disc 5 and the movable disc 6, the barrier strips 8 are annularly arranged by taking the vertical central line of the fixed disc 5 as the center, the overlooking structure of the inner sides of the barrier strips 8 is triangular, the inner sides of the barrier strips 8 can block the through holes 7, at the moment, the control device is in a closed, each first sliding groove 9 is arranged in the middle of one surface, close to the fixed disc 5, of the corresponding barrier strip 8, each first sliding block 10 is fixedly connected with the fixed disc 5, each first sliding block 10 is positioned in the corresponding first sliding groove 9 and can slide along the corresponding first sliding groove, when the control device is in a closed state, each first sliding block 10 is positioned on one side, far away from the central line of the fixed disc 5, of the corresponding first sliding groove 9, each second sliding groove sliding block structure is composed of a second sliding groove 11 and a second sliding block 12, each second sliding block 12 is fixedly arranged on the outer side, close to one surface of the fixed disc 5, of the corresponding barrier strip 8, each second sliding groove 11 is arranged on the fixed disc 5, each second sliding groove 11 positioned on the upper control device is arranged on the top surface of the corresponding fixed disc 5, each second sliding groove 11 positioned on the lower control device is arranged on the bottom surface of the corresponding fixed disc 5, each second sliding block 12 is positioned in the corresponding second sliding groove 11 and can slide along the second sliding, when the control device is in a closed state, the second sliding block 12 is positioned on one side, close to the central line of the fixed disc 5, of the corresponding second sliding groove 11, each third sliding groove sliding block structure is composed of a third sliding groove 13 and a third sliding block 14, each third sliding block 14 is fixedly installed on the outer side, close to one side of the movable disc 6, of the corresponding barrier strip 8, the third sliding grooves 13 are all arranged on the movable disc 6, the third sliding blocks 14 are respectively positioned inside the corresponding third sliding grooves 13 and are in sliding fit with the third sliding grooves 13, when the control device is in the closed state, the third sliding blocks 14 are positioned on one side, close to the central line of the fixed disc 5, of the corresponding third sliding grooves 13, the first sliding blocks 10, the second sliding blocks 12 and the third sliding blocks 14 are all cylindrical sliding blocks, the structure enables the barrier strips 8 to rotate, the directions of the first sliding grooves 9 and the third sliding grooves 13 are all the same as the directions of the corresponding barrier strips 8, and the angle between the second sliding grooves 11 and the corresponding barrier strips, when the second slide block 12 slides outwards along the inner side of the second sliding groove 11, the barrier strip 8 can move outwards, one side of the fixed disc 5 is respectively fixedly connected with one side of the fixed plate, the two fixed plates are connected through the electric push rod 15, the other side of the fixed plate positioned on the upper side is fixedly connected with the inner wall of one side of the U-shaped frame 1, the other side of the fixed plate positioned on the lower side is fixedly connected with the fourth slide block 16, the inner wall of one side of the U-shaped frame 1 is provided with the vertical fourth sliding groove 17, the fourth slide block 16 is positioned in the fourth sliding groove 17 and can slide along the fourth sliding groove, the inner wall of the other side of the U-shaped frame 1 is fixedly provided with the first motor 18, the output shaft of the first motor 18 is fixedly connected with the rear end of the longitudinal screw rod 19, the screw rod 19 passes through the threaded fit threaded sleeve 20, the transverse telescopic rod 21 is fixedly arranged on the peripheral top surface of the screw sleeve 20, one end, the fifth slider 22 is located in the fifth sliding groove 23 and can slide along the fifth sliding groove, the other end of the telescopic rod 21 is fixedly provided with a sliding sleeve 24, an arc rod 25 is arranged in the sliding sleeve 24 and is in sliding fit with the sliding sleeve, the two ends of the arc rod 25 are respectively and fixedly provided with a sixth slider 26, the periphery of the second pipeline 4 is fixedly provided with two vertical sliding rails 27, the sixth sliders 26 are respectively located in the corresponding sliding rails 27 and can slide along the sliding rails, the top surface and the bottom surface of the sliding sleeve 24 are respectively and fixedly provided with a vertical rod 28, the other side of the movable disc 6 is fixedly provided with a shifting rod 29, the shifting rod 29 is respectively contacted with the corresponding vertical rod 28, the shifting rod 29 located above is located at the front side of the corresponding vertical rod 28, the shifting rod 29 located below is located at the rear side of the corresponding vertical rod 28. The device is used for feeding quicklime, a user adjusts the length of an electric push rod 15 and further adjusts the gap between two fixed disks 5 and further adjusts the amount of materials which can be stored between a first pipeline 3 and a second pipeline 4, the user adds materials into a spiral feeder, the user opens a first motor 18 and controls the forward rotation of an output shaft of the motor, the output shaft of the first motor 18 rotates to drive a screw rod 19 to rotate, the screw rod 19 rotates to drive a screw sleeve 20 to move forward, the screw sleeve 20 moves forward to drive a sliding sleeve 24 to move forward along an arc-shaped rod 25 through a telescopic rod 21, the sliding sleeve 24 moves forward to drive a vertical rod 28 to move forward, further, a driving rod 29 is driven to drive a movable disk 6 positioned above to rotate and deform a torsion spring positioned in an upper control device, the movable disk 6 positioned above rotates to drive each blocking strip 8 to rotate through each third chute slider structure, the second chute slider structure and the third chute slider structure enable the barrier strips 8 to rotate and move outwards, gaps are formed among the barrier strips 8, materials are conveyed into the feeding pipeline 2 by the spiral feeder and pass through the feeding pipeline 2, the materials pass through the through holes 7 of the control device positioned above and the gaps among the barrier strips 8 and pass through the filter screen, and then enter the space between the first pipeline 3 and the second pipeline 4, a user controls the output shaft of the first motor 18 to continuously change the rotating direction, so that the screw sleeve 20 can reciprocate front and back at the front half part of the screw rod 19, under the action of torsional spring force, the movable disc 6 positioned above can be continuously and reciprocally rotated, gaps among the barrier strips 8 positioned in the control device above can be changed, and the barrier strips 8 can crush quicklime caked above the filter screen, after the quicklime is filled in the first pipeline 3 and the second pipeline 4, a user controls the output shaft of the first motor 8 to rotate reversely, so that the threaded sleeve 20 can move backwards, the movable disk 6 positioned above is reset under the action of torsional spring force, the barrier strips 8 positioned in the upper control device block the through hole 7, materials cannot pass through the upper control device, the threaded sleeve 20 continues to move backwards, the movable disk 6 positioned below is rotated, gaps can be formed among the barrier strips 8 positioned below, the materials in the first pipeline 3 and the second pipeline 4 are discharged under the action of gravity and enter the next process, after the materials are discharged, the user controls the first motor 18 to rotate forwards, the threaded sleeve 20 returns to the middle position of the screw rod 19, the movable disk 6 positioned below is reset under the action of torsional spring force, and the barrier strips 8 positioned below are reset, compared with a star discharger, firstly, the material amount discharged by the device at each time is equal to the material amount stored in the first pipeline 3 and the second pipeline 4, quantitative discharge can be realized, secondly, the device can adjust the material amount stored in the first pipeline 3 and the second pipeline 4 by adjusting the electricity-saving push rod 15, and further adjust the material amount discharged at each time, and is convenient to control, and thirdly, the first motor 18 of the device does not need to work continuously, has low working strength and is not easy to burn out, in addition, the device can block the material through the barrier strip 8, the situation that the barrier strip 8 moves under the gravity action of the material can not occur, the material is prevented from leaking, in addition, the barrier strip 8 can crush the caked quicklime above the filter screen, and the caked quicklime can be prevented from blocking the filter screen, in the feeding process of the device, the control device below can block water vapor in the subsequent process, reducing the caking phenomenon of the quicklime.

Specifically, as shown in fig. 1, the screw feeder described in this embodiment is composed of a feeding hopper 30, a second motor 31 and a screw rod 32, the feeding hopper 30 is fixedly installed on the outer wall of the top surface of the U-shaped frame 1, the second motor 31 is fixedly installed on the outer wall of one side of the feeding hopper 30, the output shaft of the second motor 31 penetrates through the outer wall of one side of the feeding hopper 30 and is connected with a bearing thereof, the output end of the second motor 31 is fixedly connected with one end of the screw rod 32, the other end of the screw rod 32 is connected with the inner wall of the other side of the feeding hopper 30 through a bearing, the feeding pipeline 2 penetrates through the inner wall of the top surface of the U-shaped frame 1, and one end. The user opens second motor 31, and the output shaft of second motor 31 rotates and drives hob 32 and rotate, and the user adds the material in to feeder hopper 30, and hob 32 can drive the material in the feeder hopper 30 and remove right, and then get into in the charge-in pipeline 2 to realize the feeding.

Specifically, as shown in fig. 1, the opposite surfaces of the two fixed disks 5 in this embodiment are both concave structures. In-process to the inner space feeding of first pipeline 3 and second pipeline 4, this structure can make the material be full of the inner space of first pipeline 3 and second pipeline 4, avoids appearing the material and blocks up through-hole 7 that is located on the fixed disc 5 of top, leads to the upper portion of first pipeline 3 the condition that the whole was full of appears not, and at the in-process of the ejection of compact, the material can be followed the interior concave surface roll-off that is located the fixed disc 5 top surface of below, reduces and is located the fixed disc 5 top surface residual material of below.

Further, as shown in fig. 1 or 3, the first motor 18 of this embodiment is a servo motor, the first motor 18 is electrically connected to a controller, and the controller is fixedly mounted on the inner wall of the other side of the U-shaped frame 1. Compare with the motor of other types, servo motor can control speed and position accuracy very accurately, can turn into torque and rotational speed with the drive control object with voltage signal, and rotor rotational speed receives input signal control, and after receiving the signal that the controller sent, first motor 18 can the quick response, and the user can control first motor 18 through the controller, and then can control the position of swivel nut 20 on screw rod 19, and it is more convenient to use.

Further, as shown in fig. 1, the electric push rod 15 and the second motor 31 of the present embodiment are electrically connected to the controller respectively. The user can control the length of the electric push rod 15 and the operation and the closing of the second motor 31 through control, and the use is more convenient.

Further, as shown in fig. 1, the front end of the screw rod 19 according to the present embodiment is connected to the inner wall of the U-shaped frame 1 at the other side thereof through a bearing seat. The bearing seat can fix the front end of the screw rod 19, and further the running stability of the device can be improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a bulk material constant feeder, includes U-shaped frame (1) of invering, the top surface outer wall fixed mounting screw feeder of U-shaped frame (1), its characterized in that: a discharge port of the spiral feeder is fixedly connected with one end of a feeding pipeline (2), a first pipeline (3) and a second pipeline (4) are arranged in a U-shaped frame (1), the second pipeline (4) is sleeved on the periphery of the first pipeline (3) and is in sliding contact fit with the first pipeline, the upper end of the first pipeline (3) and the lower end of the second pipeline (4) are respectively and fixedly provided with a control device, each control device consists of a fixed disc (5), a movable disc (6), a through hole (7), a plurality of barrier strips (8), a plurality of first chute slider structures, a plurality of second chute slider structures and a plurality of third chute slider structures, the upper end of the first pipeline (3) and the lower end of the second pipeline (4) are respectively and fixedly provided with the fixed disc (5), the fixed disc (5) and the movable disc (6) are connected through a bearing and a torsion spring, the vertical center lines are collinear, the centers of the top surfaces of the fixed disc (5) and the movable disc (6) are respectively provided, the lower end bearing of the feeding pipeline (2) is connected with the center of the top surface of the movable disc (6) positioned above, a filter screen is fixedly arranged in a through hole (7) of the fixed disc (5) positioned above, a plurality of barrier strips (8) are positioned between the fixed disc (5) and the movable disc (6), each first sliding groove sliding block structure consists of a first sliding groove (9) and a first sliding block (10), each first sliding groove (9) is arranged in the middle of the corresponding barrier strip (8) close to one surface of the fixed disc (5), each first sliding block (10) is fixedly connected with the fixed disc (5), each first sliding block (10) is positioned in the corresponding first sliding groove (9) and can slide along the corresponding first sliding groove, each second sliding groove sliding block structure consists of a second sliding groove (11) and a second sliding block (12), each second sliding block (12) is fixedly arranged on the outer side of the corresponding barrier strip (8) close to one surface of the fixed disc (5), the second chutes (11) are all arranged on the fixed disc (5), each second sliding block (12) is positioned inside the corresponding second chute (11) and can slide along the second chute, each third chute sliding block structure is composed of a third chute (13) and a third sliding block (14), each third sliding block (14) is fixedly arranged on the outer side of the corresponding barrier strip (8) close to one surface of the movable disc (6), the third chutes (13) are all arranged on the movable disc (6), the third sliding blocks (14) are respectively positioned inside the corresponding third chutes (13) and are in sliding fit with the third chutes, one side of the fixed disc (5) is respectively and fixedly connected with one side of a fixed plate, the two fixed plates are connected through electric push rods (15), the other side of the fixed plate positioned on the upper side is fixedly connected with the inner wall of one side of the U-shaped frame (1), the other side of the fixed plate positioned on the lower side is fixedly connected with a fourth sliding block (16), a vertical fourth sliding groove (17) is formed in the inner wall of one side of a U-shaped frame (1), a fourth sliding block (16) is located in the fourth sliding groove (17) and can slide along the fourth sliding groove, a first motor (18) is fixedly installed on the inner wall of the other side of the U-shaped frame (1), an output shaft of the first motor (18) is fixedly connected with the rear end of a longitudinal screw rod (19), the screw rod (19) penetrates through a threaded sleeve (20) in threaded fit with the screw rod, a transverse telescopic rod (21) is fixedly installed on the peripheral top surface of the threaded sleeve (20), a fifth sliding block (22) is fixedly installed at one end of the telescopic rod (21), a longitudinal fifth sliding groove (23) is formed in the other side of the inner wall of the U-shaped frame (1), the fifth sliding block (22) is located in the fifth sliding groove (23) and can slide along the fifth sliding groove, a sliding sleeve (24) is fixedly installed at the other end of the telescopic rod (, the both ends of arc pole (25) are fixed mounting sixth slider (26) respectively, two vertical slide rail (27) of periphery fixed mounting of second pipeline (4), sixth slider (26) are located corresponding slide rail (27) respectively and can slide along it, the top surface and the bottom surface of sliding sleeve (24) are fixed mounting montant (28) respectively, the opposite side fixed mounting driving lever (29) of activity disc (6), driving lever (29) contact with corresponding montant (28) respectively.

2. A bulk material constant feeder according to claim 1, characterized in that: screw feeder by feeder hopper (30), second motor (31) and hob (32) are constituteed, feeder hopper (30) fixed mounting is in the top surface outer wall of U-shaped frame (1), feeder hopper (30) one side outer wall fixed mounting second motor (31), the output shaft of second motor (31) runs through feeder hopper (30) one side outer wall and bearing connection with it, the output of second motor (31) and the one end fixed connection of hob (32), the other end of hob (32) passes through bearing connection with the opposite side inner wall of feeder hopper (30), the top surface inner wall of U-shaped frame (1) is run through in charge-in pipeline (2), the one end of charge-in pipeline (2) runs through one side outer wall bottom surface of feeder hopper (30) and fixed connection with it.

3. A bulk material constant feeder according to claim 1, characterized in that: the opposite surfaces of the two fixed disks (5) are both concave structures.

4. A bulk material constant feeder according to claim 2, characterized in that: the first motor (18) is a servo motor, and the first motor (18) is connected with the controller through a circuit.

5. A bulk material constant feeder according to claim 4, characterized in that: the electric push rod (15) and the second motor (31) are respectively in circuit connection with the controller.

6. A bulk material constant feeder according to claim 1, characterized in that: the front end of the screw rod (19) is connected with the inner wall of the other side of the U-shaped frame (1) through a bearing seat.