Sample mixing device for coal quality test

Abstract

The utility model discloses a sample mixing device for coal quality test, which comprises a crushing barrel arranged above a base plate, a fixed grinding hopper arranged on the middle lower side of the crushing barrel, a bracket arranged at a blanking opening in the fixed grinding hopper, a crushing rotating seat arranged above the bracket through a rotating motor, and a fixed grinding hopper clearance fit with the side edge of the crushing rotating seat, a mixing barrel is arranged below the grinding barrel, a stirring mechanism is arranged in the mixing barrel, an electric heating pipe is embedded in the lower side wall in the mixing barrel, and a discharging screen mechanism is arranged below the mixing barrel; caked coal samples can be pulverized and ground by arranging the pulverizing mechanism and then stirred and mixed, the problem that a test result is affected by mixing proportion deviation can be effectively avoided, the coal samples can be dried and mixed and stirred at the same time through the stirring mechanism and the electric heating tube in the mixing barrel below, and the coal samples are dried and mixed at the same time. And finally, the mixing uniformity and the mixing effect are further improved in cooperation with a vibrating discharging sieve mechanism below.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal detection technical field especially, relates to a sample mixing device for coal quality test. BACKGROUND

[0002] Coal mine is the main energy of human society at present, and the coal raw material source is relatively complex, and its quality is uneven, so it is necessary to strengthen the calorific value analysis of incoming coal, which can effectively analyze the utilization of coal.

[0003] The current coal sample mixing device has single mixing structure, the coal sample mixing device for coal quality test disclosed in the announcement No. CN116617915A discloses that uniform mixing is carried out through the vibration structure and two layers of screen meshes, but this structure can only screen through the vibrating screen mesh, and cannot guarantee the uniformity of mixing, the sample mixing device for coal quality test disclosed in the announcement No. CN217786701U discloses that uniform mixing is carried out through the rotating stirring rod, and then filtering and screening are carried out through the filter plate, but this device cannot crush the caked coal sample, which can cause the caked part of the mixed coal sample to be screened out, and further cause the mixing ratio of the coal sample to have a large deviation, thereby affecting the test result, therefore, the utility model provides a sample mixing device for coal quality test to solve the problems in the prior art. UTILITY MODEL CONTENT

[0004] In view of the above problems, the purpose of the utility model is to provide a sample mixing device for coal quality test, which can crush and grind the caked coal sample through the setting of the crushing mechanism, and then carry out stirring and mixing, which can effectively avoid the problem that the mixing ratio deviation affects the test result, through the stirring mechanism and the electric heating tube in the lower mixing barrel, the coal sample can be dried and mixed at the same time, finally, the lower vibrating discharging screen mechanism is matched, and the uniformity and mixing effect of mixing are further improved.

[0005] To achieve the purpose of this utility model, the present utility model is implemented through the following technical solution: a sample mixing device for coal quality testing, including a base plate, a crushing barrel, a crushing mechanism, a mixing barrel, a stirring mechanism, and a feeding screen mechanism. The crushing barrel is arranged above the base plate, and fixed columns are symmetrically arranged below the crushing barrel, which is supported on the base plate by the fixed columns. The crushing mechanism includes a fixed grinding bucket, a support, a rotating motor, and a crushing rotating seat. The fixed grinding bucket is fixedly arranged on the lower side of the crushing barrel. A support is arranged at the material discharge opening inside the fixed grinding bucket. Cross connecting columns are symmetrically arranged at the lower end of the support and connected to the fixed grinding bucket. The crushing rotating seat is arranged above the support through the rotating motor. The side of the crushing rotating seat is fitted with the fixed grinding bucket with a gap to crush and grind the agglomerated coal sample. A mixing barrel is arranged below the crushing barrel. A stirring mechanism is arranged in the mixing barrel to mix and stir the crushed coal sample. An electric heating tube is embedded in the lower side wall of the mixing barrel. A feeding screen mechanism is arranged below the mixing barrel.

[0006] Further improvements include: the agitation mechanism comprising a fixed ring, a rotating toothed ring, an agitator, a tilting scraper, a drive motor, and a material discharge mechanism; a fixed ring is fixedly installed at the top of the mixing drum below the crushing drum; the fixed ring is concentrically arranged with the material discharge opening below the fixed grinding hopper; a rotating toothed ring is rotatably installed on the outside of the fixed ring; an agitator is symmetrically installed on the lower side of the rotating toothed ring and is fixedly welded to the lower side of the rotating toothed ring; a tilting scraper is installed at the lower end of the agitator in contact with the bottom surface of the mixing drum; a drive motor is installed on one side of the lower part of the crushing drum; and a material discharge mechanism is installed on the lower side of the mixing drum.

[0007] Further improvements include: the output end of the drive motor meshes with a rotating ring gear, the outer surface of the rotating ring gear has a meshing tooth structure, meshing with the gear at the output end of the drive motor; the material feeding mechanism includes a feeding port, a telescopic cylinder, and a sealing plate; a feeding port is provided below the mixing tank, a telescopic cylinder is provided on one side below the mixing tank, and a sealing plate is horizontally fixed at the telescopic end of the telescopic cylinder; the sealing plate is inserted into the feeding port for sealing.

[0008] A further improvement is made in that: the feeding screen mechanism includes a connecting rubber column, a mounting ring, a feeding screen and a vibration motor; mounting rings are symmetrically arranged below the mixing barrel via the connecting rubber column; a feeding screen is arranged below the mounting ring to further buffer and mix the mixed coal powder; and a vibration motor is arranged on the side of the mounting ring.

[0009] Further improvements include: multiple sets of symmetrically arranged connecting rubber columns, all fixedly connected to the upper side of the mounting collar; the side of the feeding screen can be detachably installed to the lower external thread of the mounting collar via a mounting screw sleeve; and a collection box is provided on the base plate directly below the feeding screen to collect the mixed coal sample.

[0010] Further improvement lies in that the feeding guide is arranged above the crushing barrel, the front side of the crushing barrel is provided with a main control panel, and the rotating motor, the electric heating tube, the stirring mechanism and the discharging screen mechanism are electrically connected with the main control panel, so that the overall device can be set and controlled.

[0011] The utility model discloses the beneficial effects are: the utility model discloses through setting up the crushing mechanism can crush the coal sample that blocks, grind, then carry out the mixing of stirring, can effectively avoid the problem that the mixed coal sample is filtered out after causing the coal sample mixing ratio deviation influence test result, through the stirring mechanism and electric heating tube in the mixing barrel under, can satisfy the mixing stirring of coal sample drying simultaneously, finally cooperate the discharging screen mechanism of vibration under, further improve the uniformity and mixing effect of mixing, improve the practicality of device. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is the front view of the utility model.

[0014] 1, base plate, 2, crushing barrel, 3, mixing barrel, 4, fixed grinding hopper, 5, support, 6, rotating motor, 7, crushing rotation seat, 8, electric heating tube, 9, fixed ring, 10, rotating tooth ring, 11, stirring frame, 12, turning scraper, 13, drive motor, 14, discharge port, 15, telescopic pneumatic cylinder, 16, plugging plugboard, 17, connecting rubber column, 18, mounting sleeve ring, 19, discharging screen, 20, vibration motor, 21, material collecting box, 22, feeding guide, 23, main control panel. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the utility model, the utility model will be further described in the following embodiment, and the embodiment is only used to explain the utility model, and does not constitute the limitation of the protection scope of the utility model.

[0016] According to Figure 1 and Figure 2As shown, the embodiment provides a sample mixing device for coal quality testing, which comprises a base plate 1, a crushing barrel 2, a crushing mechanism, a mixing barrel 3, a stirring mechanism and a discharging screen mechanism. The base plate 1 is provided with the crushing barrel 2 above. Fixed upright columns are symmetrically arranged below the crushing barrel and are suspended on the base plate through the fixed upright columns. The crushing mechanism comprises a fixed grinding hopper 4, a support 5, a rotating motor 6 and a crushing rotary seat 7. The fixed grinding hopper 4 is fixedly arranged in the crushing barrel 2. The support 5 is arranged at the opening of the fixed grinding hopper 4. Cross connecting columns are symmetrically arranged at the lower end of the support 5 and are connected with the fixed grinding hopper. The crushing rotary seat 7 is arranged above the support 5 through the rotating motor 6. The crushing rotary seat 7 is gap-fitted with the fixed grinding hopper 4. The caked coal sample is crushed and ground. The mixing barrel 3 is arranged below the crushing barrel 2. The stirring mechanism is arranged in the mixing barrel 3. The crushed coal sample is mixed and stirred. The electric heating tube 8 is embedded in the inner lower wall of the mixing barrel 3. The wet coal sample can be dried through the heating control of the electric heating tube. The uniformity of the mixing is improved. The discharging screen mechanism is arranged below the mixing barrel 3.

[0017] The stirring mechanism comprises a fixed ring 9, a rotating tooth ring 10, a stirring frame 11, a turning scraper 12, a driving motor 13 and a discharging mechanism. The fixed ring 9 is fixedly arranged at the top end of the mixing barrel 3 below the crushing barrel 2. The fixed ring is concentrically arranged at the discharging opening below the fixed grinding hopper. The rotating tooth ring 10 is rotatably arranged outside the fixed ring 9. The stirring frame 11 is symmetrically arranged at the lower side of the rotating tooth ring 10 and is fixedly welded with the lower side of the rotating tooth ring. The turning scraper 12 is arranged at the lower end of the stirring frame 11 and is in close contact with the inner bottom surface of the mixing barrel 3. The coal sample on the bottom surface of the mixing barrel can be turned up and stirred to be uniformly mixed. The driving motor 13 is arranged at one side below the crushing barrel 2. The discharging mechanism is arranged at the lower side of the mixing barrel 3.

[0018] The output end of the driving motor 13 is in gear transmission with the gear of the rotating tooth ring 10. The outer side of the rotating tooth ring is a meshing tooth structure and is in gear transmission with the gear of the output end of the driving motor. The discharging mechanism comprises a discharging port 14, a telescopic cylinder 15 and a plugging plate 16. The discharging port 14 is arranged below the mixing barrel 3. The telescopic cylinder 15 is arranged at one side below the mixing barrel 3. The plugging plate 16 is fixedly arranged at the telescopic end of the telescopic cylinder 15. The plugging plate 16 is inserted into the discharging port 14 for sealing arrangement and is used for discharging control after mixing.

[0019] The discharging screen mechanism comprises a connecting rubber column 17, a mounting sleeve ring 18, a discharging screen 19 and a vibrating motor 20. The mounting sleeve ring 18 is symmetrically arranged below the mixing barrel 3 through the connecting rubber column 17. The discharging screen 19 is arranged below the mounting sleeve ring 18. The mixed coal powder is further buffered and mixed to further improve the uniformity of the mixing. The vibrating motor 20 is arranged at the side of the mounting sleeve ring 18.

[0020] The connecting glue columns 17 are symmetrically provided with multiple groups, are fixedly connected with the upper side of the mounting ring, the side of the discharging screen 19 is detachably mounted with the outer thread of the lower side of the mounting ring 18 through the mounting screw sleeve, the discharging screen 19 can be replaced according to the particle size of the coal sample, so that the coal sample passes more smoothly, and the material collecting box 21 is arranged on the base plate 1 below the discharging screen 19, and the mixed coal sample is collected.

[0021] The crushing barrel 2 is provided with a feeding chute 22 above, the front side of the crushing barrel 2 is provided with a main control panel 23, the rotating motor 6, the electric heating pipe 8, the stirring mechanism and the discharging screen mechanism are electrically connected with the main control panel 23, and the whole device can be set and controlled.

[0022] The sample mixing device for coal quality test is used, the device is started through the main control panel, the coal sample to be mixed and the mixed material are added into the crushing barrel from the feeding chute, the caked coal sample is crushed and ground through the rotation of the crushing rotating seat, then falls into the mixing barrel below, the stirring mechanism in the mixing barrel stirs and agitates, the coal sample is uniformly mixed, when the wet coal sample is mixed, the electric heating pipe is started to heat and dry the mixed coal sample, and stirring is simultaneously performed, the mixing effect is improved, finally, the mixed material is discharged into the discharging screen mechanism, the discharging screen is rapidly vibrated through the vibration motor, the mixed coal sample falling into the discharging screen is further dispersed and mixed, and falls into the material collecting box below for collection.

[0023] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only used to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A sample mixing apparatus for coal quality testing, characterized by: The utility model provides a kind of feed mixing machine, including base plate (1), crushing barrel (2), crushing mechanism, mixing barrel (3), stirring mechanism and discharging screen mechanism, the base plate (1) is equipped with crushing barrel (2) above, the crushing mechanism includes fixed grinding hopper (4), support (5), rotating motor (6) and crushing rotary seat (7), the fixed grinding hopper (4) is equipped with support (5 in crushing barrel (2) lower side, the support (5) is equipped with crushing rotary seat (7) by rotating motor (6) above, the crushing rotary seat (7) side clearance fit with fixed grinding hopper (4), the mixing barrel (3) is equipped below crushing barrel (2), the mixing barrel (3) is equipped with stirring mechanism, the mixing barrel (3) is embedded with electric heating tube (8) in lower side wall, the mixing barrel (3) is equipped with discharging screen mechanism below.

2. A sample mixing device for coal testing according to claim 1, characterized in that: The stirring mechanism includes fixed ring (9), rotating tooth ring (10), stirring frame (11), turning scraper (12), drive motor (13) and blanking mechanism, the mixing barrel (3) is equipped with fixed ring (9 in top end in crushing barrel (2) lower side), the fixed ring (9) is equipped with rotating tooth ring (10) outside, the rotating tooth ring (10) is equipped with stirring frame (11) symmetrically in lower side, the stirring frame (11) is equipped with turning scraper (12) with mixing barrel (3) bottom surface bonding in lower end, drive motor (13) is equipped with one side below crushing barrel (2), the mixing barrel (3) is equipped with blanking mechanism in lower side.

3. A sample mixing device for coal testing according to claim 2, wherein: The drive motor (13) output is engaged with rotating tooth ring (10) gear transmission, the blanking mechanism includes discharge port (14), telescopic pneumatic cylinder (15) and blocking baffle (16), the mixing barrel (3) is equipped with discharge port (14) below, the mixing barrel (3) is equipped with telescopic pneumatic cylinder (15) on one side below, the telescopic pneumatic cylinder (15) is equipped with blocking baffle (16) in telescopic end, the blocking baffle (16) is inserted into discharge port (14) and is sealed.

4. A sample mixing device for coal testing according to claim 1, characterized in that: The discharging screen mechanism includes connecting rubber column (17), mounting sleeve ring (18), discharging screen (19) and vibration motor (20), the mixing barrel (3) is equipped with mounting sleeve ring (18) by connecting rubber column (17) symmetrically below, the mounting sleeve ring (18) is equipped with discharging screen (19) below, the mounting sleeve ring (18) side is equipped with vibration motor (20).

5. A sample mixing device for coal testing according to claim 4, wherein: The connecting rubber column (17) is equipped with multiple groups symmetrically, the discharging screen (19) side is detachably installed with the outer thread of mounting sleeve ring (18) lower side through mounting screw sleeve, the base plate (1) is equipped with material collecting box (21) on the bottom directly below the discharging screen (19).

6. A sample mixing device for coal testing according to claim 1, characterized in that: The crushing barrel (2) is equipped with feeding guide chute (22) above, the crushing barrel (2) front side is equipped with main control panel (23), the rotating motor (6), electric heating tube (8), stirring mechanism and discharging screen mechanism are electrically connected with main control panel (23).

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