CN205925829U - Adjustable moulded coal waste rock milling machine with box screening plant - Google Patents

Abstract

The utility model discloses an adjustable coal gangue pulverizer with a box-type screening device, which comprises an annular cylinder, a screening box is arranged below the feeding port, a sieve plate in the screening box, and a sieve plate There is a material guide plate under the screen, a vibration motor is installed on the screening box, and a vibration spring is installed between the support frame and the screening box; an adjusting bracket is installed in the annular cylinder, and the two ends of the adjusting bracket are connected with adjusting screw rods. , the top of the adjusting screw rod passes through the hanging lug arranged on the annular cylinder; the lower part of the adjustment bracket in the annular cylinder is connected with an upper grinding disc, and the lower part of the upper grinding disc is provided with a lower grinding disc, and the middle part of the lower grinding disc is The bottom is connected with a vertical rotating shaft, the bottom of the vertical rotating shaft is connected with a gearbox, one side of the gearbox is connected with a horizontal rotating shaft, and one end of the horizontal rotating shaft is connected with a motor; All have dimples. The utility model has the beneficial effects of good grinding effect, high equipment utilization rate, low production cost and high production efficiency.

Description

An adjustable coal gangue pulverizer with a box-type screening device

technical field

The utility model relates to a coal gangue pulverizer, in particular to an adjustable coal gangue pulverizer with a box-type screening device.

Background technique

Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Including the excavation gangue during the roadway excavation, the gangue extracted from the roof, floor and interlayer during the mining process, and the gangue picked out during the coal washing process. Its main components are Al2O3 and SiO2, and it also contains varying amounts of Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium, cobalt).

In order to improve waste utilization and reduce environmental pollution, one of the main applications of coal gangue is to prepare coal gangue unfired bricks, that is, the same as the traditional brick-making method, the coal gangue is crushed and added to the binder, stirred evenly, and then put into the mold Apply medium pressure to form, take out and let dry. However, the position of the grinding sheet of the existing crushing and grinding equipment is fixed. When the grinding sheet is worn out, the required grinding degree cannot be reached, and the particle size of the powder particle is large. At this time, only a new grinding sheet is used for grinding, resulting in equipment failure Can not be fully utilized; at the same time, the existing coal gangue needs to be transported to the screening place for screening after grinding, which not only increases the production cost, but also reduces the production efficiency.

Contents of the invention

The purpose of the utility model is to provide an adjustable coal gangue pulverizer with a box-type screening device. The utility model has the characteristics of good grinding effect, high equipment utilization rate, low production cost and high production efficiency.

The technical solution of the utility model: an adjustable coal gangue mill with a box-type screening device, including an annular cylinder, the bottom of the annular cylinder is provided with a discharge port, and the bottom of the discharge port is provided with a Screening box, the top of the screening box is the material inlet, and there are 2-3 layers of downward-sloping sieve plates on both sides of the sieving box. It is an S-shaped channel, and the bottom of the sieve plate is provided with a downwardly inclined material guide plate. The top of the material guide plate is connected to the top of the sieve plate, and the other end is fixed on the inner wall of the screening box to form a triangular cross-section with the sieve plate. The sifter, the connection between the sieving box and the material guide plate is provided with a powder outlet, the bottom of the sieving box is provided with a residue outlet, the sieving box is equipped with a vibration motor, and the bottom of the sieving box is equipped with a vibration motor. There is a support frame, and a vibrating spring is provided between the support frame and the screening box; a horizontal adjustment bracket is provided in the annular cylinder, and the two ends of the adjustment bracket pass through the movable grooves on both sides of the annular cylinder respectively, and are stretched A vertically upward adjusting screw rod is connected to the output end, the bottom of the adjusting screw rod passes through the adjusting bracket, and an upper limit plate and a lower limit plate are respectively arranged on the adjusting screw rods on the upper and lower sides of the adjusting bracket, and the adjusting screw rod The top of the upper end passes through the hanging lug arranged on the annular cylinder; the lower part of the adjustment bracket in the annular cylinder is connected with an upper grinding disc through a spring, and the middle part of the upper grinding disc is provided with a feeding hole, and the upper part of the feeding hole is connected with a The lower hopper is provided with a lower grinding disc under the upper grinding disc, and a vertical shaft is connected under the middle part of the lower grinding disc. The bottom of the vertical shaft is connected with a gearbox, and one side of the gearbox is connected with a horizontal shaft. A motor is connected; the contact side of the upper grinding disc and the lower grinding disc are provided with concave grooves.

In the aforementioned adjustable coal gangue pulverizer with a box-type screening device, a conical depression is provided in the middle of the side of the upper grinding disc that is in contact with the lower grinding disc.

In the aforementioned adjustable coal gangue pulverizer with a box-type screening device, the top of the sieve plate on one side in the screening box exceeds the top of the sieve plate on the other side and extends to the middle.

The beneficial effects of the utility model:

1. The utility model sets the adjustment bracket above the upper grinding disc, and adjusts the position of the adjusting bracket by adjusting the screw rod. When the grinding disc wears out, lower the position of the upper grinding disc to keep the upper and lower grinding discs in a state of close contact. , so that it always has a good grinding effect, and at the same time, the worn grinding disc can be effectively used, and the grinding effect remains unchanged.

2. The utility model arranges a spring between the adjustment bracket and the upper grinding disc. When the coal gangue contains relatively hard substances, the spring is compressed, and the gap between the upper and lower grinding discs increases to avoid damage to the grinding disc by hard substances. The service life of the equipment is extended.

3. The utility model arranges a screening box under the feeding port of the mill, and sets a sieve plate in the screening box, so that the screening can be carried out immediately after the grinding is completed, which reduces the transportation process and reduces the production cost. cost and improve production efficiency.

4. The utility model sets a conical depression in the middle of the upper grinding disc, so that a larger gap is formed between the upper grinding disc and the lower grinding disc at the feeding port, and as the distance from the center of the grinding disc gets farther, The smaller the gap between the upper and lower grinding discs, until the final close fit together, making it easier for coal gangue to enter between the upper and lower grinding discs, further improving the grinding effect.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the structure diagram of grinding disc.

Explanation of reference signs: 1-annular cylinder, 2-adjusting bracket, 3-upper grinding disc, 4-spring, 5-feed hole, 6-conical depression, 7-lower hopper, 8-lower grinding disc, 9 -vertical shaft, 10-gearbox, 11-motor, 12-horizontal shaft, 13-movable slot, 14-adjusting screw, 15-upper limit plate, 16-lower limit plate, 17-hanging ear, 18-bottom Material port, 19-screening box, 20-feeding port, 21-sieve plate, 22-material guide plate, 23-powder discharge port, 24-residue discharge port, 25-support frame, 26-vibration spring, 27-vibration motor, 28-dimple.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for limiting the utility model.

Embodiment of the present utility model: an adjustable coal gangue pulverizer with a box-type screening device, as shown in Figure 1-2, includes an annular cylinder 1, and the bottom of the annular cylinder 1 is provided with The feeding port 18 is provided with a screening box 19 below the feeding port 18, and the top of the screening box 19 is a feeding port 20. Both sides of the screening box 19 are respectively provided with 2-3 layers of downward-sloping screens. plate 21, the sieve plates 21 on both sides are alternately arranged up and down, and there is an S-shaped channel between the sieve plates 21 on both sides. The bottom of the sieve plate 21 is provided with a downwardly inclined material guide plate 22, and the top of the material guide plate 22 is connected to the The top of the sieve plate 21 is connected, and the other end is fixed on the inner wall of the sieve box 19 to form a triangular sieve with the sieve plate 21. The connection between the sieve box 19 and the material guide plate 22 is provided with a powder discharge Port 23, the bottom of the screening box 19 is provided with a residue discharge port 24, the screening box 19 is provided with a vibration motor 27, and the bottom of the screening box 19 is provided with a support frame 25, between the support frame 25 and the screening box 19 A vibrating spring 26 is provided; the annular cylinder 1 is provided with a horizontal adjustment bracket 2, and the two ends of the adjustment bracket 2 pass through the movable grooves 13 on both sides of the annular cylinder 1 respectively, and vertical Straight upward adjustment screw mandrel 14, the bottom of the adjustment screw mandrel 14 passes through the adjustment bracket 2, and is respectively provided with an upper limit plate 15 and a lower limit plate 16 on the adjustment screw mandrel 14 on the upper and lower sides of the adjustment support 2, the adjustment screw mandrel 14 The top of the rod 14 passes through the lug 17 arranged on the annular cylinder 1; the bottom of the adjustment bracket 2 in the annular cylinder 1 is connected with the upper grinding disc 3 via the spring 4, and the middle part of the upper grinding disc 3 is provided with an inlet Material hole 5, the top of feeding hole 5 is connected with lower hopper 7, the bottom of upper grinding disc 3 is provided with lower grinding disc 8, the bottom of lower grinding disc 8 is connected with vertical rotating shaft 9, the bottom of vertical rotating shaft 9 is connected There is a gearbox 10, one side of the gearbox 10 is connected with a horizontal shaft 12, and one end of the horizontal shaft 12 is connected with a motor 11; the side where the upper grinding disc 3 and the lower grinding disc 8 are in contact is provided with concave grooves 28 .

A conical depression 6 is provided in the middle of the side of the upper grinding disc 3 that is in contact with the lower grinding disc 8 .

The top of the sieve plate 21 on one side in the sieving box 19 exceeds the top of the sieve plate 21 on the other side and extends to the middle.

Working principle: when grinding, the coal gangue coarse material is sent into the lower hopper 7, and then enters between the upper grinding disc 3 and the lower grinding disc 8 through the feeding hole 5, and the lower grinding disc 8 rotates under the drive of the motor 11, and makes the Coarse coal gangue moves from the middle of the grinding disc to the edge, is crushed into powder by the upper grinding disc 3 and the lower grinding disc 8 during the movement, and then falls from the lower feeding port 18 to the lower screening box 19 Inside, the sieve plate 21 in the sieving box 19 vibrates under the action of the vibrating motor 27 and the vibrating spring 26, so that the powder slides down the slope of the sieve plate 21, and the powder with a particle size smaller than the mesh passes through the mesh and falls to the sieve. The bottom of the plate 21 is then screened out through the powder discharge port 23 along the slope of the material guide plate 22, and the residue that does not meet the requirements then falls out through the residue discharge port 24. When the grinding disc is worn or the particle size of the grinding particles needs to be changed, the position of the adjusting bracket 2 is adjusted by rotating the adjusting screw 14, thereby changing the compression degree of the spring 4 and changing the squeeze between the upper grinding disc 3 and the lower grinding disc 8. pressure.

Claims (3)

1. a kind of adjustable type gangue flour mill with box screening plant it is characterised in that：Include circular cylinder（1）, Circular cylinder（1）Bottom be provided with feed opening（18）, feed opening（18）Lower section be provided with screening case（19）, sieve case（19）Top Portion is feeding mouth（20）, sieve case（19）Interior both sides are respectively provided with the downward-sloping sieve plate of layer 2-3（21）, the sieve plate of both sides（21） Arrange alternatively up and down, both sides sieve plate（21）Between be S-shaped passage, described sieve plate（21）Lower section be provided with downward-sloping stock guide （22）, stock guide（22）Top and sieve plate（21）Top connect, the other end is fixed on screening case（19）Inwall after with sieve Plate（21）Formation cross-section is the sifter of triangle, described screening case（19）With stock guide（22）Junction offer powder and go out Material mouth（23）, sieve case（19）Bottom be provided with residue discharging opening（24）, sieve case（19）It is provided with vibrating motor（27）, screening Case（19）Lower section be provided with bracing frame（25）, bracing frame（25）With screening case（19）Between be provided with vibrating spring（26）；Described ring Shape cylinder（1）Inside it is provided with the adjusting bracket of level（2）, adjusting bracket（2）Two ends be each passed through circular cylinder（1）The work of both sides Dynamic groove（13）, and regulation screw mandrel straight up is connected with external part（14）, adjust screw mandrel（14）Bottom pass through adjust Support（2）, and in adjusting bracket（2）The regulation screw mandrel of both sides up and down（14）On be respectively equipped with a upper limit disk（15）And lower limit Position disk（16）, adjust screw mandrel（14）Top pass through located at circular cylinder（1）On hangers（17）；Described circular cylinder（1）Interior Adjusting bracket（2）Lower section through spring（4）It is connected with top lap（3）, top lap（3）Middle part be provided with plup inlet（5）, Plup inlet（5）Top be connected with hopper（7）, top lap（3）Lower section be provided with lower abrasive disk（8）, lower abrasive disk（8）In The lower section in portion is connected with vertical rotating shaft（9）, vertical rotating shaft（9）Bottom be connected with change speed gear box（10）, change speed gear box（10）Side It is connected with horizontal rotating shaft（12）, horizontal rotating shaft（12）One end be connected with motor（11）；Described top lap（3）With lower abrasive disk （8）It is equipped with dimpled grain on the side contacting（28）.

2. the adjustable type gangue flour mill with box screening plant according to claim 1 it is characterised in that：Described Top lap（3）Above with lower abrasive disk（8）The middle part of the side of contact is provided with conical indentation（6）.

3. the adjustable type gangue flour mill with box screening plant according to claim 1 it is characterised in that：Described Screening case（19）The sieve plate of interior side（21）Top exceed the sieve plate of opposite side（21）Top and extend in the middle part of it.