CN212049366U

CN212049366U - Magnesium oxide material conveying device

Info

Publication number: CN212049366U
Application number: CN202020572831.7U
Authority: CN
Inventors: 张占领; 张艳琴
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-01
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a magnesium oxide material conveying device, which effectively solves the problems that the prior magnesium oxide material is easy to damage a conveyer belt when being conveyed and the conveying speed can not be correspondingly adjusted according to the supply quantity of the material; the technical scheme comprises the following steps: the buffer device is arranged on the magnesium oxide material conveying device, so that magnesium oxide materials firstly pass through the buffer device and then fall to the feeding end of the conveying belt, impact on the conveying belt is reduced, the magnesium oxide material conveying device can adjust the conveying speed of the conveying belt according to the feeding amount in unit time, and flexibility and applicability of the device are greatly improved.

Description

Magnesium oxide material conveying device

Technical Field

The utility model relates to a technical field is carried to the material, specifically is magnesium oxide material conveyor.

Background

As an important chemical product, the magnesium oxide has wide application, and the magnesium oxide material for production has larger particle diameter and is not easy to be conveyed by a conveyor in consideration of actual conditions, so the magnesium oxide material needs to be crushed, and then the solid magnesium oxide with larger volume is crushed into particles with the required particle size, thereby being convenient for realizing the conveying of the magnesium oxide material;

when the crushed magnesium oxide is conveyed, the crushed magnesium oxide is generally conveyed through a conveying belt, and when the crushed magnesium oxide is discharged from a crushing device and falls on a feeding part of the conveying belt, but the conventional conveying device is not provided with a buffer device, when magnesium oxide materials fall on the conveying belt, certain impact is generated on the conveying belt, so that the conveying belt is damaged over time, and the conveying speed of the conventional conveying belt cannot be adjusted according to the feeding amount, so that when the feeding amount is large, the materials falling on the feeding end of the conveying belt cannot be conveyed away in time, so that more materials are accumulated and fall off from the conveying belt, and the waste of the materials is caused;

in view of the above, we provide a magnesium oxide material conveying device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a magnesium oxide material conveyor is provided with buffer on this magnesium oxide material conveyor for the magnesium oxide material is at first through this buffer then drop to the material loading end of conveyer belt again, and then has reduced the impact to the conveyer belt, and this magnesium oxide material conveyor can be according to the size of material loading volume in the unit interval, adjusts the conveying speed of conveyer belt, makes the device's flexibility, suitability improve greatly.

The magnesium oxide material conveying device comprises a conveying frame, a conveying belt is arranged on the conveying frame, and is characterized in that a receiving hopper is vertically and slidably arranged on the conveying frame, a telescopic spring is connected between the receiving hopper and the conveying frame, a plurality of guide plates which are obliquely arranged are respectively arranged on two longitudinal sides in the receiving hopper, the guide plates are alternately arranged at vertical intervals from top to bottom, a driving wheel set and a driven wheel set which are matched with each other are arranged on one longitudinal side of the conveying frame, the driving wheel set is driven by a conveying motor, the driven wheel set is connected with a conveying belt roller, a V-shaped steel belt is matched between the driving wheel set and the driven wheel set, an adjusting device for adjusting the meshing working radius of the V-shaped steel belt and the driving wheel set and the driven wheel set is arranged on the conveying frame, and the transmission radius ratio of the V-shaped steel belt to the, thereby adjusting the conveying speed of the conveying belt.

Preferably, driving wheel group, driven wheel group comprise fixed disk, the movable dish that mutually supports, fixed disk, movable dish all set up to conical surface structure, the cooperation of V-arrangement steel band is between two sets of fixed disks, the movable dish that mutually support, one of them fixed disk and the coaxial rotation of conveyer belt roller, another the fixed disk is by conveying motor drive.

Preferably, the adjusting means comprises: the movable disc is longitudinally slidably mounted on a group of adjusting rods corresponding to the movable disc, the movable disc and one of the adjusting rods corresponding to the movable disc are in threaded fit, the adjusting rods are rotatably mounted on the conveying frames, and the adjusting rods in threaded fit with the movable disc are coaxially sleeved with gears which are transversely slidably mounted on the conveying frames in a gear meshing manner.

Preferably, lie in on the carriage and connect hopper below longitudinal slip to be provided with T shape pole with spacing board and the horizontal both sides of limiting plate an organic whole, be fixed with on the carriage with T shape pole sliding fit's slide cartridge and T shape pole and slide cartridge diapire between be connected with spacing spring, one of them slide cartridge inner wall fixed mounting has resistance and T shape pole and slide cartridge inner wall sliding contact position to install the conducting strip, resistance, conducting strip are established ties jointly in steady voltage return circuit, be connected with regulating spring between rack and the carriage, correspond the rigidity with the rack on the carriage and have the electro-magnet and the rack of establishing ties in steady voltage return circuit and be fixed with the iron sheet towards electro-magnet one side.

Preferably, the plurality of guide plates are rotatably arranged between the two lateral walls of the receiving hopper, one ends of the guide plates, which are arranged outside the receiving hopper, are coaxially sleeved with fixed worm gears, the worm gears which are positioned on the same longitudinal side are matched with worms rotatably arranged on the receiving hopper, and the two worms are driven by an adjusting motor fixed on the receiving hopper.

The beneficial effects of the technical scheme are as follows:

(1) the magnesium oxide material conveying device is provided with the buffer device, so that magnesium oxide materials firstly pass through the buffer device and then fall to the feeding end of the conveying belt, the impact on the conveying belt is reduced, the conveying speed of the conveying belt can be adjusted according to the feeding amount in unit time, and the flexibility and the applicability of the device are greatly improved;

(2) this buffer can adjust the falling speed of material in buffer according to the size of the material loading volume of magnesium oxide material in the unit interval in this scheme, namely, when the material loading volume of magnesium oxide is less in the unit interval, we make the magnesium oxide material with slower speed whereabouts through the inclination that changes a plurality of stock guides, when the material loading volume of magnesium oxide material is great in the unit interval, we change the inclination of a plurality of stock guides and make the magnesium oxide material with faster speed whereabouts, when avoiding the material loading volume of magnesium oxide material to increase, make the material pile up in buffer.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic rear front view of the receiving hopper of the present invention;

FIG. 3 is a schematic view of another perspective structure of the receiving hopper after section view;

FIG. 4 is a schematic view of the internal installation structure of the sliding barrel of the present invention after being cut away;

FIG. 5 is a schematic view showing the fitting relationship between the T-shaped rod and the resistor according to the present invention;

FIG. 6 is a schematic structural view of the adjusting device of the present invention;

fig. 7 is a schematic top view of the adjusting device of the present invention;

fig. 8 is a schematic view of the meshing relationship between the rack and the gear of the present invention.

In the figure: the conveying device comprises a conveying frame 1, a conveying belt 2, a material receiving hopper 3, a telescopic spring 4, a material guide plate 5, a driving wheel set 6, a driven wheel set 7, a conveying motor 8, a V-shaped steel belt 9, a fixed disc 10, a movable disc 11, a driven adjusting rod 12, a driving adjusting rod 13, a T-shaped rod 14, a sliding cylinder 15, a limiting spring 16, a resistor 17, a gear 18, a rack 19, a limiting plate 20, an adjusting spring 21, a worm wheel 22, a worm 23, an adjusting motor 24, a belt wheel set 25 and a sliding frame 26.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 8. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment provides a magnesium oxide material conveying device, as shown in fig. 1, which includes a conveying frame 1 and a conveying belt 2 mounted on the conveying frame 1, and is characterized in that a receiving hopper 3 is vertically slidably mounted on the conveying frame 1, and a telescopic spring 4 is connected between the receiving hopper 3 and the conveying frame 1 (the upper end of the receiving hopper 3 is arranged in a horn shape so as to facilitate the material to enter the receiving hopper 3), as shown in fig. 2, a plurality of obliquely arranged guide plates 5 are respectively mounted on two longitudinal sides in the receiving hopper 3, and the guide plates 5 are alternately arranged from top to bottom at vertical intervals, when the magnesium oxide material falls into the receiving hopper 3 from the upper end of the receiving hopper 3, the magnesium oxide material firstly falls onto the uppermost guide plate 5 and then falls onto another guide plate 5 located below the receiving hopper, and the magnesium oxide material entering into the receiving hopper 3 can be buffered by arranging the plurality of guide plates 5 alternately arranged at vertical intervals, the magnesium oxide material finally falls on the conveying belt 2 from the guide plate 5 positioned at the lowermost end, the speed of the magnesium oxide material falling on the conveying belt 2 when passing through the guide plate 5 at the lowermost end is greatly reduced through reversing the guide plate 5 for multiple times, compared with the traditional mode that the magnesium oxide material directly falls on the conveying belt 2, the impact on the conveying belt 2 is greatly reduced, and the telescopic spring 4 is connected between the receiving hopper 3 and the conveying frame 1, so that the receiving hopper 3 is vertically and elastically arranged on the conveying frame 1, and the impact on the guide plate 5 when the magnesium oxide material falls on the guide plate 5 is also greatly reduced;

referring to the attached drawing 6, a driving wheel set 6 and a driven wheel set 7 which are matched with each other are arranged on one longitudinal side of a frame, the driving wheel set 6 is driven by a conveying motor 8, the driven wheel set 7 is connected with a conveying belt 2, a V-shaped steel belt 9 is matched between the driving wheel set 6 and the driven wheel set 7, when the conveying motor 8 is started to work, the driving wheel set 6 drives the V-shaped steel belt 9 to rotate so as to drive the driven wheel set 7 which is matched and connected with the V-shaped steel belt 9 to rotate, and therefore the effect of driving the conveying belt 2 to rotate is achieved, and conveying of magnesium oxide materials is achieved;

we are equipped with on carriage 1 and are used for adjusting V-arrangement steel band 9 and driving wheel set 6, driven wheel set 7 meshes the adjusting device of working radius, can realize adjusting V-arrangement steel band 9 respectively with driving wheel set 6 through this adjusting device, the transmission radius ratio of driven wheel set 7, and then adjust the conveying speed of conveyer belt 2 according to the material loading volume of magnesium oxide material in the unit interval, avoid too big because of the material loading volume of magnesium oxide material in the unit interval, and lead to more magnesium oxide material to pile up the material loading end at conveyer belt 2, make the magnesium oxide material drop from conveyer belt 2, cause the waste of material.

In the second embodiment, on the basis of the first embodiment, referring to fig. 6, the driving wheel set 6 and the driven wheel set 7 are composed of a fixed disk 10 and a movable disk 11 which are matched with each other, referring to fig. 7, both the fixed disk 10 and the movable disk 11 are set to be conical surface structures, the V-shaped steel belt 9 is matched between two sets of the fixed disk 10 and the movable disk 11 which are matched with each other, the conical surfaces of the fixed disk 10 and the movable disk 11 which are matched with each other form a V-shaped groove for being meshed with the V-shaped steel belt 9, one of the fixed disk 10 and the roller of the conveying belt 2 rotate coaxially, the other fixed disk 10 is driven by the conveying motor 8, when in operation, the driving force of the conveying motor 8 is firstly transmitted to the driving wheel set 6 and then transmitted to the driven wheel set 7 through the V-shaped steel belt 9, referring to fig. 6, both the movable disks 11 are rotatably provided, the sliding frame 26 is connected with an adjusting device;

the sliding frames 26 are adjusted through the adjusting device, so that the two sliding frames 26 are driven to longitudinally move on the conveying frame 1, the movable discs 11 in the driving wheel set 6 and the driven wheel set 7 can be driven to axially move, the working radius of the conical surfaces of the driving wheel set 6 and the driven wheel set 7 meshed with the V-shaped steel belt 9 is changed, the transmission ratio is changed, and the effect of adjusting the speed of the conveying belt 2 is achieved;

referring to fig. 7, the two sliding frames 26 are adjusted by the adjusting device, so that the sliding frame 26 engaged with the movable plate 11 of the driving wheel set 6 moves towards the direction close to the conveying motor 8, and the sliding frame 26 engaged with the movable plate 11 of the driven wheel set 7 moves towards the direction close to the conveying motor 8 synchronously, at this time, the meshing transmission radius of the V-shaped steel belt 9 and the driving wheel set 6 is increased (namely, the V-shaped steel belt 9 meshed with the driving wheel set 6 moves towards the position far away from the center of the driving wheel set 6 under the extrusion of the movable plate 11), and the meshing transmission radius of the V-shaped steel belt 9 and the driven wheel set 7 is decreased (the V-shaped steel belt 9 meshed with the driven wheel set 7 moves towards the position near the center of the driven wheel set 7), at this time, the conveying motor 8 drives the conveying belt 2 to increase in speed, otherwise, the two sliding frames 26 are driven by the adjusting device to move away from the, so that the meshing transmission radius of the V-shaped steel belt 9 and the driving wheel set 6 is reduced, the meshing transmission radius of the V-shaped steel belt and the driven wheel set 7 is increased, and the speed of the conveying belt 2 driven by the conveying motor 8 is reduced.

In a third embodiment, referring to fig. 6, on the basis of the second embodiment, the adjusting device includes: the conveying frames 1 on the two transverse sides of the driven wheel set 7 are provided with driven adjusting rods 12 extending longitudinally, the conveying frames 1 on the two transverse sides of the driving wheel set 6 are provided with driving adjusting rods 13 extending longitudinally, the movable disc 11 is arranged on a group of adjusting rods corresponding to the movable disc 11 in a longitudinal sliding mode, the movable disc 11 is in threaded fit with one of the adjusting rods corresponding to the movable disc 11, the adjusting rods are rotatably arranged on the conveying frames 1, the adjusting rods in threaded fit with the movable disc 11 are coaxially sleeved with fixed gears 18, the gears 18 are meshed with racks 19 arranged on the conveying frames 1 in a transverse sliding mode, the racks 19 are pulled to drive the gears 18 meshed with the racks to rotate, so that the adjusting rods in threaded fit with the sliding frames 26 are driven to rotate, the two sliding frames 26 are driven to synchronously move in the same longitudinal direction, and the V-shaped steel belts 9 and the driving wheel set 6 are, The effect of adjusting the transmission ratio is realized by the meshing working radius between the driven wheel sets 7.

In the fourth embodiment, on the basis of the third embodiment, as shown in fig. 2, preferably, a limiting plate 20 is longitudinally slid on the conveying frame 1 below the material receiving hopper 3, and T-shaped rods 14 are integrally arranged on two lateral sides of the limiting plate 20, as shown in fig. 4, a sliding cylinder 15 in sliding fit with the T-shaped rods 14 is fixed on the conveying frame 1, a limiting spring 16 is connected between the T-shaped rods 14 and the bottom wall of the sliding cylinder 15, as shown in fig. 5, a resistor 17 is fixedly arranged on the inner wall of one of the sliding cylinders 15, and a conducting strip is arranged at the sliding contact position of the T-shaped rods 14 and the inner wall of the sliding cylinder 15 (the conducting strip resistor 17 is negligible);

the resistor 17 and the conducting plate are connected in series in the voltage stabilizing loop, specifically, one end of the resistor 17, which is positioned on one side wall in the sliding cylinder 15 and is far away from the T-shaped rod 14, is connected with the positive electrode of the voltage stabilizing power supply, and one end of the resistor 17, which is positioned on the other side wall in the sliding cylinder 15 and is far away from the T-shaped rod 14, is connected with the negative electrode of the voltage stabilizing power supply, namely, the conducting plate fixedly mounted on the T-shaped rod 14 plays a role in;

when the blanking amount of the magnesium oxide material in the unit time is increased, more magnesium oxide material is accumulated at the feeding end of the conveyer belt 2, and the magnesium oxide material accumulated at the feeding end of the conveyer belt 2 cannot be timely conveyed away due to the lower conveying speed of the conveyer belt 2 (the conveying speed of the conveyer belt 2 cannot catch up with the blanking speed of the magnesium oxide material in the unit time), so that the excessive magnesium oxide material is accumulated at the feeding end of the conveyer belt 2, and further, part of the magnesium oxide material is easy to fall off from the conveyer belt 2, the problem is just overcome by the arrangement of the limiting plate 20 in the scheme, referring to the attached drawing 2, when more magnesium oxide material is accumulated at the feeding end of the conveyer belt 2, the limiting plate 20 is extruded to the longitudinal side and the longitudinal side of the limiting plate 20 box is forced to slide along the sliding barrel 15, so that the limiting spring 16 connected between the T-shaped rod 14 and the sliding barrel 15 is compressed to store energy, referring to fig. 5, when one of the T-shaped rods 14 fixedly installed with the conducting strips moves towards the direction of compressing the limiting spring 16 (the current in the voltage stabilizing loop flows from the positive pole to the T-shaped rod 14 through the resistor 17 installed on the side wall of the sliding barrel 15 away from one end of the T-shaped rod 14 and flows to the negative pole of the voltage stabilizing power supply through the conducting strip on the T-shaped rod 14 again from the resistor 17 on the other side wall), the resistance value of the resistor 17 connected in series in the voltage stabilizing loop becomes smaller, the current in the voltage stabilizing loop increases, and the magnetic force of the electromagnet connected in series in the voltage stabilizing power supply loop increases;

referring to fig. 8, an iron sheet is fixedly installed on one side of a rack 19 fixedly connected with an adjusting spring 21, and an electromagnet (not shown in the figure) is fixedly installed at a connecting portion of the adjusting spring 21 and the conveying frame 1, when the magnetic force of the electromagnet is increased, the electromagnet drives the rack 19 to move towards the direction of compressing the adjusting spring 21 by adsorbing the iron sheet fixed on the rack 19, so as to drive a gear 18 engaged with the rack to rotate, and further drive a corresponding adjusting rod to rotate, and finally, the movable disk 11 rotatably installed on a sliding frame 26 is driven to move, and the effect of changing the transmission ratio is achieved.

Fifth embodiment, on the basis of the first embodiment, referring to fig. 2, preferably, a plurality of material guiding plates 5 are rotatably installed between two lateral walls of the receiving hopper 3, the material guiding plates 5 are disposed at one end of the receiving hopper 3, the worm wheels 22 are fixed to the receiving hopper, the worm wheels 22 are matched with the worm wheels 23 rotatably installed on the receiving hopper 3, the two worm wheels 23 are driven by the adjusting motor 24 fixed on the receiving hopper 3, the worm wheels 23 rotatably installed on the receiving hopper 3 are connected with the adjusting motor 24 through the belt pulley set 25 and driven by the adjusting motor 24, the adjusting motor 24 is controlled by the controller of the adjusting motor 24 to start up the adjusting motor 24, and then the material guiding plates 5 rotatably installed in the receiving hopper 3 are driven by the two worm wheels 23 to rotate synchronously (when the worm wheels 23 at two longitudinal sides drive the corresponding worm wheels 22 to rotate, the material guiding plates 5 at two longitudinal sides can be driven to rotate oppositely or reversely), therefore, the included angle between the guide plate 5 and the horizontal plane is adjusted, the amount of magnesium oxide materials passing through the receiving hopper 3 in unit time is changed, the smaller the included angle between the guide plate 5 and the horizontal plane is, the less the magnesium oxide materials falling on the conveying belt 2 through the receiving hopper 3 in unit time are (at the moment, the falling speed of the magnesium oxide materials falling on the conveying belt 2 from the bottom of the receiving hopper 3 is smaller), the larger the included angle between the guide plate 5 and the horizontal plane is, the more the magnesium oxide materials falling on the conveying belt 2 through the receiving hopper 3 in unit time are (at the moment, the falling speed of the magnesium oxide materials falling on the conveying belt 2 from the bottom of the receiving hopper 3 is also higher);

the tight size of clamp between stock guide 5 and the horizontal plane depends on, from the size of magnesium oxide material volume of magnesium oxide material reducing mechanism exhaust in the unit interval, if the magnesium oxide material volume that enters into in the unit interval and connect hopper 3 is great, we are corresponding adjusts the contained angle of stock guide 5 and horizontal plane a little more, otherwise, adjust the contained angle of stock guide 5 and horizontal plane a little, in a word the speed of the magnesium oxide material that a plurality of stock guides 5 set up and make finally fall on conveyer belt 2 compares in the speed greatly reduced that directly falls on conveyer belt 2, thereby reduce the damage to conveyer belt 2.

Be provided with buffer on this magnesium oxide material conveyor for the magnesium oxide material is at first through this buffer then drops to the material loading end of conveyer belt 2 again, and then has reduced the impact to conveyer belt 2, and this magnesium oxide material conveyor can adjust the conveying speed of conveyer belt 2 according to the size of material loading volume in the unit interval, makes the device's flexibility, suitability improve greatly.

This buffer can adjust the falling speed of material in buffer according to the size of the material loading volume of magnesium oxide material in the unit interval in this scheme, namely, when the material loading volume of magnesium oxide is less in the unit interval, we make the magnesium oxide material with slower speed whereabouts through changing the inclination of a plurality of stock guides 5, when the material loading volume of magnesium oxide material is great in the unit interval, we change the inclination of a plurality of stock guides 5 and make the magnesium oxide material with faster speed whereabouts, when avoiding the material loading volume of magnesium oxide material to increase, make the material pile up in buffer.

The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. Magnesium oxide material conveyor installs conveyer belt (2) on carriage (1) and carriage (1), its characterized in that, vertical slidable mounting has on carriage (1) and connects hopper (3) and connect and be connected with expanding spring (4) between hopper (3) and carriage (1), connect baffle (5) and a plurality of baffle (5) from last to vertical interval setting down that vertical both sides installed a plurality of slopes respectively in hopper (3), carriage (1) vertical one side is provided with matched with initiative wheelset (6), driven wheelset (7) and initiative wheelset (6) and is driven by conveyer motor (8), driven wheelset (7) are connected with conveyer belt (2) roller, the cooperation has V-arrangement steel band (9) between initiative wheelset (6) and driven wheelset (7), be equipped with on carriage (1) and be used for adjusting V-arrangement steel band (9) and initiative wheelset (6), The driven wheel set (7) is meshed with the adjusting device of the working radius, and the transmission radius ratio of the V-shaped steel belt (9) to the driving wheel set (6) and the transmission radius ratio of the V-shaped steel belt to the driven wheel set (7) can be adjusted through the adjusting device, so that the conveying speed of the conveying belt (2) is adjusted.

2. The magnesium oxide material conveying device according to claim 1, wherein the driving wheel set (6) and the driven wheel set (7) are composed of fixed disks (10) and movable disks (11) which are matched with each other, the fixed disks (10) and the movable disks (11) are both set to be conical surface structures, the V-shaped steel belt (9) is matched between two sets of fixed disks (10) and movable disks (11) which are matched with each other, one of the fixed disks (10) and the conveying belt (2) roll coaxially rotate, and the other fixed disk (10) is driven by the conveying motor (8).

3. The magnesia material transport apparatus of claim 2, wherein the regulating means comprises: the automatic adjusting device is characterized in that a longitudinally extending driven adjusting rod (12) is arranged on conveying frames (1) on the two transverse sides of a driven wheel set (7), a longitudinally extending driving adjusting rod (13) is arranged on the conveying frames (1) on the two transverse sides of a driving wheel set (6), a movable disc (11) is longitudinally slidably mounted on a set of adjusting rods corresponding to the movable disc (11), the movable disc (11) and one of the adjusting rods corresponding to the movable disc are in threaded fit, the adjusting rods are rotatably mounted on the conveying frames (1), and the movable disc (11) is meshed with racks (19) which are transversely slidably mounted on the conveying frames (1) and coaxially sleeved with inherent gears (18) and gears (18) on the adjusting rods in threaded fit.

4. The magnesium oxide material conveying device according to claim 3, wherein a limiting plate (20) longitudinally slides below the material receiving hopper (3) on the conveying frame (1), and T-shaped rods (14) are integrally arranged on two transverse sides of the limiting plate (20), a sliding barrel (15) in sliding fit with the T-shaped rods (14) is fixed on the conveying frame (1), a limiting spring (16) is connected between the T-shaped rods (14) and the bottom wall of the sliding barrel (15), a resistor (17) is fixedly arranged on the inner wall of the sliding barrel (15), a conducting strip is installed at the sliding contact part of the T-shaped rods (14) and the inner wall of the sliding barrel (15), the resistor (17) and the conducting strip are jointly connected in series in a voltage stabilizing loop, an adjusting spring (21) is connected between the rack (19) and the conveying frame (1), an electromagnet connected in series in the voltage stabilizing loop is fixed at a position corresponding to the rack (19) on the conveying frame (1), and an iron sheet is fixed on one side of the rack (19) facing the electromagnet.

5. The magnesium oxide material conveying device according to claim 1, wherein a plurality of the material guiding plates (5) are rotatably installed between two lateral walls of the material receiving hopper (3), the material guiding plates (5) are arranged at one end outside the material receiving hopper (3) and are fixedly sleeved with worm gears (22), worm gears (23) rotatably installed on the material receiving hopper (3) are matched with the worm gears (22) on the same longitudinal side, and the two worm gears (23) are driven by an adjusting motor (24) fixed on the material receiving hopper (3).