Accurate adjustment type coal blending equipment and method

Abstract

The invention discloses accurate adjustment type coal blending equipment and method, and belongs to the technical field of coal blending equipment.The accurate adjustment type coal blending equipment comprises a bottom plate, a pressure sensor is arranged at the upper end of the bottom plate, supporting legs are arranged at the upper end of the pressure sensor, a coal blending box is connected to the upper ends of the supporting legs, and a discharging assembly is arranged in the middle of the bottom of the coal blending box; according to the coal blending device, the dust suction assembly is arranged, a suction pump works for suction, dust generated by raw materials in the coal blending box is sucked into a collecting cover and a dust suction pipe for conveying, and a collecting pipe is used for collecting, so that the dust generated by the raw materials in the coal blending box is discharged, and the dust generated by the raw materials in the coal blending box is discharged; the dust enters the box body, gas is filtered and discharged through the filter screen, the dust is left in the box body, the filter screen is inserted into the clamping seat and can be conveniently taken down to be cleaned, the sealing plate is opened, the dust in the box body is conveniently discharged from the discharging opening, the dust is prevented from influencing the matching precision during coal blending, and accurate adjustment of coal blending is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal blending equipment, and in particular relates to a precision-adjustable coal blending equipment and method. Background Art

[0002] Coal blending: An important preparation process for coal before coking or carbonization. In order to produce coke, power coal, and boiler coal that meet quality requirements, different types of raw coal are blended in appropriate proportions.

[0003] The existing coal blending equipment has the following problems when in use: 1. Coal blending generates a lot of dust, causing environmental pollution, and dust falling into the coal blending box is prone to cause errors, affecting the coal blending accuracy;

[0004] 2. The material feeding stability is poor, the material cannot be fed evenly, and it is easy to leave residue, resulting in inaccurate coal blending and affecting the accuracy;

[0005] 3. The inner wall of the coal blending box is prone to residue and cannot be cleaned, resulting in inaccurate coal blending and affecting accuracy;

[0006] 4. The raw materials for coal blending are large in size, which makes it inconvenient to feed the materials, and the large pieces of raw materials affect the subsequent addition, making coal blending difficult. Summary of the invention

[0007] In order to solve the problems raised in the above background technology, the present invention provides a precise adjustment type coal blending equipment, which has the characteristics of less dust, stable material feeding, complete material discharge and no residue.

[0008] The present invention also provides a method for using the precise adjustment type coal blending equipment.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precisely adjustable coal blending equipment, comprising a base plate, a pressure sensor is arranged at the upper end of the base plate, a supporting leg is arranged at the upper end of the pressure sensor, the upper end of the supporting leg is connected to a coal blending box, a feeding assembly is arranged in the middle of the bottom of the coal blending box, a dust suction assembly is arranged on the upper side of the coal blending box, a vibration assembly is arranged in the middle of the side of the coal blending box, the lower ends of four groups of feeding assemblies are connected to a collecting box, and a crushing assembly is arranged at the upper inner end of the coal blending box.

[0010] Furthermore, the dust suction assembly includes a collecting hood, a dust suction pipe, a conduit, a suction pump, a collecting box and a supporting frame, wherein a collecting box is provided at the upper end of the supporting frame, a suction pump is provided at the upper end of the collecting box, an air inlet of the suction pump is connected to the conduit, a plurality of dust suction pipes are provided at both ends of the conduit, and the sides of the dust suction pipes are connected to the collecting hood.

[0011] Furthermore, the collection box includes a box body, a filter screen, a holder, a sealing plate and a discharge port, wherein the air outlets on both sides of the box body are provided with holders, a filter screen is inserted in the middle of the holder, a discharge port is provided at the lower end of the side of the box body, and a sealing plate is provided in the middle of the discharge port.

[0012] Furthermore, the material discharge assembly includes a spiral feeding rod, a conical bucket, a pushing assembly, a driving motor and a material discharge pipe, wherein a driving motor is provided at the bottom of the conical bucket, a rotating shaft of the driving motor is connected to the spiral feeding rod, one side of the conical bucket is connected to the pushing assembly, and the other side of the conical bucket is connected to the material discharge pipe.

[0013] Furthermore, the material discharge assembly also includes a sealing plate and an electric push rod, wherein a sealing plate is provided at the connection between the material discharge pipe and the conical bucket, and an electric push rod is provided at the upper end of the sealing plate.

[0014] Furthermore, the pushing assembly includes a fixed plate, an electric pull rod 2, a connecting plate, a push rod and a push plate, wherein a fixed plate is provided at the lower end of the side of the conical bucket, the lower end of the fixed plate is connected to the electric pull rod 2, the piston rod of the electric pull rod 2 is connected to the connecting plate, the side of the connecting plate is connected to the push rod, and the other end of the push rod is connected to the push plate.

[0015] Furthermore, the vibration assembly includes a knocking assembly, a rotating frame, a rotating rod, a roller, a mounting frame and a stepper motor, wherein a knocking assembly is arranged on the side of the coal distribution box, a mounting frame is arranged between the two coal distribution boxes, a rotating rod is connected in the middle of the mounting frame, a stepper motor connected to the rotating rod is arranged on the side of the mounting frame, rotating frames are arranged at both ends of the surface of the rotating rod, and rollers are rotatably connected to the sides of the rotating frame.

[0016] Furthermore, the knocking assembly includes a fixed frame, a side plate, a sliding rod, a return spring, a movable plate and a knocking block, wherein a sliding rod is connected to the middle of the side of the fixed frame, one end of the sliding rod is connected to the side plate, a return spring is arranged on the surface of the sliding rod between the fixed frame and the side plate, the other end of the sliding rod is connected to the movable plate, and a plurality of knocking blocks are arranged on the surface of the movable plate.

[0017] Furthermore, the crushing assembly includes crushing roller one, crushing roller two, an inclined plate, motor one and motor two, wherein inclined plates are arranged on both sides of the inner upper end of the coal distribution box, crushing roller two and crushing roller one are arranged below the inclined plates, motor two connected to the rotating shaft of crushing roller one is arranged on the side of the coal distribution box, motor one connected to the rotating shaft of crushing roller two is arranged on the side of the coal distribution box, and crushing roller one and crushing roller two rotate in opposite directions.

[0018] A method for accurately regulating coal blending equipment comprises the following steps:

[0019] S1. Add the coal materials to be proportioned into different coal blending boxes respectively. The pressure sensor detects the weight. If the weight is not enough, add more to ensure the accurate proportion of coal blending. The inclined plate sends the raw materials to the middle of crushing roller 1 and crushing roller 2. Motor 2 drives crushing roller 1 to rotate, and motor 1 drives crushing roller 2 to rotate. The raw materials are crushed by crushing roller 1 and crushing roller 2 to avoid blockage.

[0020] S2. The suction pump works to suck the dust generated by the raw materials in the coal blending box into the collection cover, the dust suction pipe is used to transport the dust, and the confluence pipe is used to collect the dust, so that the dust enters the box body, and the gas is filtered and discharged through the filter screen. The dust remains in the box body, and the filter screen is inserted into the card seat, which is convenient for removal and cleaning. The sealing plate is opened to facilitate the discharge of the dust in the box from the discharge port, so as to avoid the dust from affecting the ratio accuracy during coal blending and ensure accurate adjustment of coal blending;

[0021] S3, the electric push rod is retracted to move the sealing plate upward, the driving motor rotates to drive the spiral feeding rod to rotate, the spiral feeding rod drives the raw materials in the cone bucket to move downward, the electric drag rod is extended to drive the connecting plate to move, the connecting plate drives the push rod to move, the push rod drives the push plate to move, the push plate pushes the coal blending raw materials to the discharge pipe, the raw materials fall from the discharge pipe into the collection box, so that the coal blending raw materials are concentrated;

[0022] S4. The rotation of the stepper motor drives the rotating rod to rotate, the rotating frame rotates, the rotating frame drives the roller to rotate, the roller pushes the side plate to move, the side plate drives the slide bar to slide on the fixed frame, the moving plate on the side of the slide bar drives the knocking block to move, the knocking block hits the surface of the coal blending box, causing the coal blending box to vibrate, and the raw materials attached to the inner wall of the coal blending box will fall off to avoid residue, thereby ensuring accurate coal blending.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a dust suction component, and the suction pump is operated to suck. The dust generated by the raw materials in the coal blending box is sucked into the collection cover, the dust suction pipe is used for transportation, and the confluence pipe is used for collection, so that the dust enters the box body, and the gas is filtered and discharged through the filter screen. The dust remains in the box body, and the filter screen is inserted into the card seat, which is convenient to remove for cleaning. The sealing plate is opened to facilitate the discharge of the dust in the box from the discharge port, so as to avoid the dust from affecting the ratio accuracy during coal blending, and ensure accurate adjustment of coal blending;

[0025] 2. The present invention sets a material discharge assembly. The electric push rod contracts to move the sealing plate upward, the driving motor rotates to drive the spiral feeding rod to rotate, the spiral feeding rod drives the raw materials in the cone bucket to move downward, the electric drag rod extends to drive the connecting plate to move, the connecting plate drives the push rod to move, the push rod drives the push plate to move, the push plate pushes the coal blending raw materials to the material discharge pipe, and the raw materials fall from the material discharge pipe into the collection box, so that the coal blending raw materials are concentrated;

[0026] 3. The present invention sets a vibration component, the stepper motor rotates to drive the rotating rod to rotate, the rotating frame rotates, the rotating frame drives the roller to rotate, the roller pushes the side plate to move, the side plate drives the slide bar to slide on the fixed frame, the moving plate on the side of the slide bar drives the knocking block to move, the knocking block hits the surface of the coal distribution box, the coal distribution box vibrates, the raw materials attached to the inner wall of the coal distribution box are shaken off, to avoid residue, and ensure accurate coal distribution;

[0027] 4. The present invention sets a crushing assembly, and the inclined plate sends the raw material to the middle of the crushing roller 1 and the crushing roller 2. The motor 2 drives the crushing roller 1 to rotate, and the motor 1 drives the crushing roller 2 to rotate. The raw material is crushed by the crushing roller 1 and the crushing roller 2 to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the dust collection component of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the collection box of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the blanking assembly of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the pusher assembly of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the vibration component of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the knocking component of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the crushing assembly of the present invention;

[0036] In the figure: 1, coal distribution box; 2, dust suction assembly; 21, collection cover; 22, dust suction pipe; 23, manifold; 24, suction pump; 25, collection box; 251, box body; 252, filter screen; 253, holder; 254, sealing plate; 255, discharge port; 26, support frame; 3, unloading assembly; 31, spiral feeding rod; 32, cone bucket; 33, pushing assembly; 331, fixing plate; 332, electric drag rod 2; 333, connecting plate; 334, push rod; 335, push plate; 34, drive motor; 35, sealing plate; 36. Feeding pipe; 37. Electric push rod 1; 4. Pressure sensor; 5. Support leg; 6. Bottom plate; 7. Collection box; 8. Vibration assembly; 81. Knocking assembly; 811. Fixed frame; 812. Side plate; 813. Sliding rod; 814. Return spring; 815. Moving plate; 816. Knocking block; 82. Rotating frame; 83. Rotating rod; 84. Roller; 85. Mounting frame; 86. Stepper motor; 9. Crushing assembly; 91. Crushing roller 1; 92. Crushing roller 2; 93. Inclined plate; 94. Motor 1; 95. Motor 2. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-8 The present invention provides the following technical solutions: a precisely adjustable coal blending equipment, comprising a bottom plate 6, a pressure sensor 4 is arranged at the upper end of the bottom plate 6, a support leg 5 is arranged at the upper end of the pressure sensor 4, a coal blending box 1 is connected to the upper end of the support leg 5, a feeding assembly 3 is arranged in the middle of the bottom of the coal blending box 1, a dust suction assembly 2 is arranged on the upper side of the coal blending box 1, a vibration assembly 8 is arranged in the middle of the side of the coal blending box 1, the lower ends of the four groups of feeding assemblies 3 are connected to a collecting box 7, and a crushing assembly 9 is arranged at the upper end of the coal blending box 1.

[0039] Further in the present invention, the dust collection assembly 2 includes a collecting hood 21, a dust collection pipe 22, a conduit 23, a suction pump 24, a collecting box 25 and a support frame 26, wherein a collecting box 25 is provided at the upper end of the support frame 26, a suction pump 24 is provided at the upper end of the collecting box 25, an air inlet of the suction pump 24 is connected to the conduit 23, a plurality of dust collection pipes 22 are provided at both ends of the conduit 23, and the sides of the dust collection pipes 22 are connected to the collecting hood 21.

[0040] By adopting the above technical solution, the suction pump 24 works to suction, and the dust generated by the raw materials in the coal blending box 1 is sucked into the collecting cover 21, the dust suction pipe 22 is used to transport it, and the manifold 23 is used to collect it, so that the dust enters the collecting box 25, thereby avoiding the dust from affecting the blending ratio accuracy during coal blending and ensuring accurate adjustment of coal blending.

[0041] Further in the present invention, the collecting box 25 includes a box body 251, a filter screen 252, a holder 253, a sealing plate 254 and a discharge port 255, wherein the air outlets on both sides of the box body 251 are provided with holders 253, the filter screen 252 is inserted in the middle of the holder 253, the discharge port 255 is provided at the lower end of the side of the box body 251, and the sealing plate 254 is provided in the middle of the discharge port 255.

[0042] By adopting the above technical solution, dust enters the box body 251, and the gas is filtered and discharged through the filter 252, and the dust remains in the box body 251. The filter 252 is inserted into the holder 253, which is convenient for removal for cleaning. The sealing plate 254 is opened to facilitate the discharge of dust in the box body 251 from the discharge port 255, so as to avoid the dust affecting the proportioning accuracy during coal blending.

[0043] Further in the present invention, the unloading assembly 3 includes a spiral feeding rod 31, a conical bucket 32, a pushing assembly 33, a driving motor 34 and a unloading pipe 36, wherein a driving motor 34 is provided at the bottom of the conical bucket 32, a rotating shaft of the driving motor 34 is connected to the spiral feeding rod 31, one side of the conical bucket 32 ​​is connected to the pushing assembly 33, and the other side of the conical bucket 32 ​​is connected to the unloading pipe 36.

[0044] By adopting the above technical solution, the driving motor 34 rotates to drive the spiral feeding rod 31 to rotate, the spiral feeding rod 31 drives the raw materials in the conical bucket 32 ​​to move downward, the electric drag rod 332 extends to drive the connecting plate 333 to move, the connecting plate 333 drives the push rod 334 to move, the push rod 334 pushes the push plate 335 to move, the push plate 335 pushes the coal blending raw materials to the discharge pipe 36, and the raw materials fall into the collection box 7 from the discharge pipe 36, so that the coal blending raw materials are concentrated.

[0045] Further in the present invention, the material discharge assembly 3 also includes a sealing plate 35 and an electric push rod 37, wherein a sealing plate 35 is provided at the connection between the material discharge pipe 36 and the conical bucket 32, and an electric push rod 37 is provided at the upper end of the sealing plate 35.

[0046] By adopting the above technical solution, the electric push rod 37 contracts to move the sealing plate 35 upward, making it easier for the raw materials to enter the discharge pipe 36 from the conical bucket 32.

[0047] Further in the present invention, the pushing assembly 33 includes a fixed plate 331, an electric pull rod 332, a connecting plate 333, a push rod 334 and a push plate 335, wherein a fixed plate 331 is provided at the lower end of the side of the conical bucket 32, the lower end of the fixed plate 331 is connected to the electric pull rod 332, the piston rod of the electric pull rod 332 is connected to the connecting plate 333, the side of the connecting plate 333 is connected to the push rod 334, and the other end of the push rod 334 is connected to the push plate 335.

[0048] By adopting the above technical solution, the electric drag rod 332 is extended to drive the connecting plate 333 to move, the connecting plate 333 drives the push rod 334 to move, the push rod 334 pushes the push plate 335 to move, the push plate 335 pushes the coal-blending raw materials to the discharge pipe 36, and the raw materials fall into the collection box 7 from the discharge pipe 36.

[0049] Further in the present invention, the vibration assembly 8 includes a knocking assembly 81, a rotating frame 82, a rotating rod 83, a roller 84, a mounting frame 85 and a stepper motor 86, wherein a knocking assembly 81 is arranged on the side of the coal distribution box 1, a mounting frame 85 is arranged in the middle of the two coal distribution boxes 1, the middle of the mounting frame 85 is connected to the rotating rod 83, the side of the mounting frame 85 is arranged with a stepper motor 86 connected to the rotating rod 83, rotating frames 82 are arranged at both ends of the surface of the rotating rod 83, and the side of the rotating frame 82 is rotatably connected with the roller 84.

[0050] By adopting the above technical solution, the stepper motor 86 rotates to drive the rotating rod 83 to rotate, the rotating frame 82 rotates, the rotating frame 82 drives the roller 84 to rotate, the roller 84 pushes the knocking component 81, and the knocking component 81 hits the surface of the coal distribution box 1, causing the coal distribution box 1 to vibrate, and the raw materials attached to the inner wall of the coal distribution box 1 are shaken off to avoid residue.

[0051] Further in the present invention, the knocking assembly 81 includes a fixed frame 811, a side plate 812, a sliding rod 813, a return spring 814, a movable plate 815 and a knocking block 816, wherein a sliding rod 813 is connected to the middle of the side of the fixed frame 811, one end of the sliding rod 813 is connected to the side plate 812, a return spring 814 is provided on the surface of the sliding rod 813 located between the fixed frame 811 and the side plate 812, the other end of the sliding rod 813 is connected to the movable plate 815, and a plurality of knocking blocks 816 are provided on the surface of the movable plate 815.

[0052] By adopting the above technical solution, the roller 84 pushes the side plate 812 to move, the side plate 812 drives the slide bar 813 to slide on the fixed frame 811, the movable plate 815 on the side of the slide bar 813 drives the knocking block 816 to move, and the knocking block 816 hits the surface of the coal distribution box 1, causing the coal distribution box 1 to vibrate, and the raw materials attached to the inner wall of the coal distribution box 1 are shaken off to avoid residue.

[0053] Further in the present invention, the crushing assembly 9 includes a crushing roller 1 91, a crushing roller 2 92, an inclined plate 93, a motor 1 94 and a motor 2 95, wherein inclined plates 93 are provided on both sides of the inner upper end of the coal distribution box 1, crushing roller 2 92 and crushing roller 1 91 are respectively provided below the inclined plates 93, a motor 2 95 connected to the rotating shaft of the crushing roller 1 91 is provided on the side of the coal distribution box 1, a motor 1 94 connected to the rotating shaft of the crushing roller 2 92 is provided on the side of the coal distribution box 1, and the crushing roller 1 91 and the crushing roller 2 92 rotate in opposite directions.

[0054] By adopting the above technical solution, the inclined plate 93 sends the raw materials to the middle of the crushing roller 1 91 and the crushing roller 2 92, the motor 2 95 drives the crushing roller 1 91 to rotate, and the motor 1 94 drives the crushing roller 2 92 to rotate, and the raw materials are crushed by the crushing roller 1 91 and the crushing roller 2 92 to avoid blockage.

[0055] Further in the present invention, a method for accurately regulating coal blending equipment comprises the following steps:

[0056] S1. Add the coal raw materials to be proportioned into different coal blending boxes 1 respectively. The pressure sensor 4 detects the weight. If the weight is not enough, add more to ensure the accurate proportion of coal blending. The inclined plate 93 sends the raw materials to the middle of the crushing roller 1 91 and the crushing roller 2 92. The motor 2 95 drives the crushing roller 1 91 to rotate. The motor 1 94 drives the crushing roller 2 92 to rotate. The raw materials are crushed by the crushing roller 1 91 and the crushing roller 2 92 to avoid blockage.

[0057] S2, the suction pump 24 works to suck, and the dust generated by the raw materials in the coal blending box 1 is sucked into the collection cover 21, and the dust suction pipe 22 is used for transportation, and the confluence pipe 23 is used for collection, so that the dust enters the box body 251, and the gas is filtered and discharged through the filter 252, and the dust remains in the box body 251. The filter 252 is inserted into the holder 253, which is convenient for removal and cleaning. The sealing plate 254 is opened to facilitate the discharge of the dust in the box body 251 from the discharge port 255, so as to avoid the dust affecting the ratio accuracy during coal blending, and ensure accurate adjustment of coal blending;

[0058] S3, the electric push rod 1 37 contracts to move the sealing plate 35 upward, the driving motor 34 rotates to drive the spiral feeding rod 31 to rotate, the spiral feeding rod 31 drives the raw materials in the conical bucket 32 ​​to move downward, the electric drag rod 2 332 extends to drive the connecting plate 333 to move, the connecting plate 333 drives the push rod 334 to move, the push rod 334 pushes the push plate 335 to move, the push plate 335 pushes the coal blending raw materials to the discharge pipe 36, the raw materials fall from the discharge pipe 36 into the collection box 7, so that the coal blending raw materials are concentrated;

[0059] S4. The rotation of the stepper motor 86 drives the rotating rod 83 to rotate, the rotating frame 82 rotates, the rotating frame 82 drives the roller 84 to rotate, the roller 84 pushes the side plate 812 to move, the side plate 812 drives the slide bar 813 to slide on the fixed frame 811, the movable plate 815 on the side of the slide bar 813 drives the knocking block 816 to move, the knocking block 816 hits the surface of the coal distribution box 1, so that the coal distribution box 1 vibrates, and the raw materials attached to the inner wall of the coal distribution box 1 are shaken off to avoid residue, thereby ensuring accurate coal distribution.

[0060] Working principle and use process of the present invention: When the present invention is used, the coal raw materials to be proportioned are added into different coal blending boxes 1 respectively, the pressure sensor 4 detects the weight, and adds when the weight is not enough to ensure the accurate coal blending ratio, the inclined plate 93 sends the raw materials to the middle of the crushing roller 1 91 and the crushing roller 2 92, the motor 2 95 drives the crushing roller 1 91 to rotate, and the motor 1 94 drives the crushing roller 2 92 to rotate, and the raw materials are crushed by the crushing roller 1 91 and the crushing roller 2 92 to avoid blockage; the suction pump 24 works to suck, and the dust generated by the raw materials in the coal blending box 1 is sucked into the collection cover 21, the dust suction pipe 22 is transported, and the manifold 23 is collected to make the dust enter the box body 251, and the gas is filtered and discharged through the filter screen 252, and the dust remains in the box body 251, and the filter screen 252 is inserted into the holder 253, which is convenient for removal and cleaning, and the sealing plate 254 is opened to facilitate the discharge of the dust in the box body 251 from the discharge port 255, so as to avoid the dust affecting the proportion during coal blending. The electric push rod 1 37 contracts to move the sealing plate 35 upward, the driving motor 34 rotates to drive the spiral feeding rod 31 to rotate, the spiral feeding rod 31 drives the raw materials in the conical bucket 32 ​​to move downward, the electric drag rod 2 332 extends to drive the connecting plate 333 to move, the connecting plate 333 drives the push rod 334 to move, the push rod 334 pushes the push plate 335 to move, the push plate 335 pushes the coal blending raw materials to the discharge pipe 36, and the raw materials fall from the discharge pipe 36 into the collection box 7, so that the coal blending The coal raw materials are concentrated; the stepper motor 86 rotates to drive the rotating rod 83 to rotate, the rotating frame 82 rotates, the rotating frame 82 drives the roller 84 to rotate, the roller 84 pushes the side plate 812 to move, the side plate 812 drives the slide bar 813 to slide on the fixed frame 811, the movable plate 815 on the side of the slide bar 813 drives the knocking block 816 to move, and the knocking block 816 hits the surface of the coal distribution box 1, causing the coal distribution box 1 to vibrate, and the raw materials attached to the inner wall of the coal distribution box 1 are shaken off to avoid residue, thereby ensuring accurate coal distribution.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision-adjustable coal blending device, comprising a bottom plate (6), characterized in that: A pressure sensor (4) is arranged at the upper end of the bottom plate (6), a support leg (5) is arranged at the upper end of the pressure sensor (4), the upper end of the support leg (5) is connected to a coal distribution box (1), a material discharge assembly (3) is arranged in the middle of the bottom of the coal distribution box (1), a dust suction assembly (2) is arranged on the upper side of the coal distribution box (1), a vibration assembly (8) is arranged in the middle of the side of the coal distribution box (1), the lower ends of the four groups of material discharge assemblies (3) are connected to a collecting box (7), and a crushing assembly (9) is arranged at the upper end of the coal distribution box (1).

2. The precise adjustment type coal blending equipment according to claim 1, characterized in that: The dust collection assembly (2) comprises a collection hood (21), a dust collection pipe (22), a manifold (23), a suction pump (24), a collection box (25) and a support frame (26), wherein the collection box (25) is arranged at the upper end of the support frame (26), the suction pump (24) is arranged at the upper end of the collection box (25), the air inlet of the suction pump (24) is connected to the manifold (23), a plurality of dust collection pipes (22) are arranged at both ends of the manifold (23), and the side of the dust collection pipe (22) is connected to the collection hood (21).

3. The precise adjustment type coal blending equipment according to claim 2, characterized in that: The collecting box (25) comprises a box body (251), a filter screen (252), a holder (253), a sealing plate (254) and a discharge port (255), wherein the air outlets on both sides of the box body (251) are provided with holders (253), the filter screen (252) is inserted in the middle of the holder (253), the discharge port (255) is provided at the lower end of the side of the box body (251), and the sealing plate (254) is provided in the middle of the discharge port (255).

4. The precise adjustment type coal blending equipment according to claim 1, characterized in that: The material discharge assembly (3) comprises a spiral feeding rod (31), a conical bucket (32), a material pushing assembly (33), a driving motor (34) and a material discharge pipe (36), wherein a driving motor (34) is arranged at the bottom of the conical bucket (32), a rotating shaft of the driving motor (34) is connected to the spiral feeding rod (31), a side edge of the conical bucket (32) is connected to the material pushing assembly (33), and a side edge of the conical bucket (32) is connected to the material discharge pipe (36).

5. The precise adjustment type coal blending equipment according to claim 4, characterized in that: The material discharge assembly (3) further comprises a sealing plate (35) and an electric push rod (37), wherein a sealing plate (35) is provided at the connection between the material discharge pipe (36) and the conical bucket (32), and an electric push rod (37) is provided at the upper end of the sealing plate (35).

6. The precise adjustment type coal blending equipment according to claim 4, characterized in that: The pushing assembly (33) comprises a fixed plate (331), an electric pull rod (332), a connecting plate (333), a push rod (334) and a push plate (335), wherein a fixed plate (331) is provided at the lower end of the side of the conical bucket (32), the lower end of the fixed plate (331) is connected to the electric pull rod (332), the piston rod of the electric pull rod (332) is connected to the connecting plate (333), the side of the connecting plate (333) is connected to the push rod (334), and the other end of the push rod (334) is connected to the push plate (335).

7. The precise adjustment type coal blending equipment according to claim 1, characterized in that: The vibration assembly (8) comprises a knocking assembly (81), a rotating frame (82), a rotating rod (83), a roller (84), a mounting frame (85) and a stepping motor (86), wherein the knocking assembly (81) is arranged on the side of the coal distribution box (1), the mounting frame (85) is arranged between the two coal distribution boxes (1), the middle of the mounting frame (85) is connected with the rotating rod (83), the side of the mounting frame (85) is arranged with a stepping motor (86) connected with the rotating rod (83), the rotating frames (82) are arranged at both ends of the surface of the rotating rod (83), and the side of the rotating frame (82) is rotatably connected with the roller (84).

8. The precise adjustment type coal blending equipment according to claim 7, characterized in that: The knocking assembly (81) comprises a fixed frame (811), a side plate (812), a sliding rod (813), a return spring (814), a movable plate (815) and a knocking block (816), wherein the sliding rod (813) is connected to the middle of the side of the fixed frame (811), one end of the sliding rod (813) is connected to the side plate (812), a return spring (814) is arranged on the surface of the sliding rod (813) between the fixed frame (811) and the side plate (812), the other end of the sliding rod (813) is connected to the movable plate (815), and a plurality of knocking blocks (816) are arranged on the surface of the movable plate (815).

9. The precise adjustment type coal blending equipment according to claim 1, characterized in that: The crushing assembly (9) comprises a crushing roller 1 (91), a crushing roller 2 (92), an inclined plate (93), a motor 1 (94) and a motor 2 (95), wherein inclined plates (93) are arranged on both sides of the upper end of the interior of the coal distribution box (1), crushing roller 2 (92) and crushing roller 1 (91) are arranged below the inclined plates (93), a motor 2 (95) connected to the rotating shaft of the crushing roller 1 (91) is arranged on the side of the coal distribution box (1), and a motor 1 (94) connected to the rotating shaft of the crushing roller 2 (92) is arranged on the side of the coal distribution box (1), and the crushing roller 1 (91) and the crushing roller 2 (92) rotate in opposite directions.

10. A method for a precise adjustment type coal blending device according to any one of claims 1 to 9, characterized in that: The steps include: S1. The coal raw materials to be proportioned are added to different coal blending boxes (1) respectively. The pressure sensor (4) detects the weight. When the weight is less than the required weight, more coal is added to ensure the accurate proportion of coal blending. The inclined plate (93) sends the raw materials to the middle of the crushing roller 1 (91) and the crushing roller 2 (92). The motor 2 (95) drives the crushing roller 1 (91) to rotate. The motor 1 (94) drives the crushing roller 2 (92) to rotate. The raw materials are crushed by the crushing roller 1 (91) and the crushing roller 2 (92) to avoid blockage. S2, the suction pump (24) operates to suck, and the dust generated by the raw materials in the coal blending box (1) is sucked into the collecting cover (21), and the dust suction pipe (22) is used to transport the dust, and the confluence pipe (23) is used to collect the dust, so that the dust enters the box body (251), and the gas is filtered and discharged through the filter screen (252), and the dust remains in the box body (251). The filter screen (252) is inserted into the holder (253) for easy removal and cleaning, and the sealing plate (254) is opened to facilitate the discharge of the dust in the box body (251) from the discharge port (255), so as to avoid the dust affecting the proportion accuracy during coal blending, and ensure accurate adjustment of coal blending; S3, the electric push rod 1 (37) contracts to move the sealing plate (35) upward, the driving motor (34) rotates to drive the spiral feeding rod (31) to rotate, the spiral feeding rod (31) drives the raw materials in the conical bucket (32) to move downward, the electric drag rod 2 (332) extends to drive the connecting plate (333) to move, the connecting plate (333) drives the push rod (334) to move, the push rod (334) pushes the push plate (335) to move, the push plate (335) pushes the coal blending raw materials to the discharge pipe (36), the raw materials fall from the electric push rod 1 (37) into the bottom plate (6), so that the coal blending raw materials are concentrated; S4, the stepper motor (86) rotates to drive the rotating rod (83) to rotate, the rotating frame (82) rotates, the rotating frame (82) drives the roller (84) to rotate, the roller (84) pushes the side plate (812) to move, the side plate (812) drives the slide bar (813) to slide on the fixed frame (811), the moving plate (815) on the side of the slide bar (813) drives the knocking block (816) to move, the knocking block (816) hits the surface of the coal distribution box (1), so that the coal distribution box (1) vibrates, and the raw materials attached to the inner wall of the coal distribution box (1) are shaken off to avoid residue, thereby ensuring accurate coal distribution.

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