CN209565222U - An environment-friendly coal sorting and screening device for mining - Google Patents

Abstract

The utility model provides a kind of mining environment protecting type coal sorting screening plant, belong to coal screening technical field, including screening chamber, screening structure and fixed structure, screening structure is from top to bottom installed on the intracavitary portion of screening, fixed structure is set to outside screening chamber, vibrator is fixedly installed at screening top of chamber center, upper screening bucket, middle screening bucket and lower screening bucket are successively fixedly welded from top to bottom in the intracavitary portion of screening, collection frame activity is embedded in screening chamber inner bottom, and the screening equal hollow out of hole is set to screening bucket, middle screening bucket and lower screening bucket bottom.Pass through screening bucket, middle screening bucket and lower screening bucket in setting in the device, coal is screened according to build size, so that different screening buckets sift out it is uniform in size consistent, it is able to carry out better subsequent sort, and be not easy to plug, the production and use of screening plant are sorted with environment protecting type coal suitable for mining.

Description

An environment-friendly coal sorting and screening device for mining

technical field

The utility model relates to the technical field of coal screening, in particular to a coal sorting and screening device.

Background technique

The existing coal screening equipment needs to pour coal into the interior of the equipment when screening coal. Due to the excessive coal poured in at one time, the coal is easy to accumulate in the middle of the initial position of the equipment, which will cause blockage. In the process of such screening, there are many defective products, and the quality and size of the coal screened out are uneven. Secondary screening is required, resulting in low screening efficiency, time-consuming and labor-intensive work, and high labor intensity for workers. Therefore, it is necessary to use existing coal On the basis of the screening device, it is upgraded and transformed to overcome the existing problems and deficiencies, and an environment-friendly coal sorting and screening device for mining is provided.

Utility model content

The purpose of the utility model is to solve the technical problem that the existing coal screening device is prone to blockage, and the size of the screened coal is uneven, requiring repeated screening, and provides an environmentally friendly coal sorting and screening device for mining. By setting the upper screening bucket, the middle screening bucket and the lower screening bucket, the coal can be screened according to the size of the block, so that the sizes screened out by different screening buckets are uniform, and better subsequent sorting can be carried out, and Not easy to clog.

In order to achieve the above purpose, the utility model provides the following technical solutions: an environment-friendly coal sorting and screening device for mining, including a screening cavity, a screening structure and a fixed structure, and the screening structure is installed in the screening cavity from top to bottom Inside, the fixed structure is set outside the screening chamber;

The screening structure includes vibrators, upper screening buckets, middle screening buckets, lower screening buckets, collection frames, screening holes, blocking bars and baffles. The vibrator is fixedly installed at the center of the top of the screening chamber. The dividing bucket, the middle screening bucket and the lower screening bucket are fixed and welded inside the screening chamber from top to bottom. The collection frame is embedded in the bottom of the screening chamber. The bottom of the middle screening bucket and the lower screening bucket, the resistance bars are fixedly welded to the bottom of the upper screening bucket, the middle screening bucket and the bottom of the lower screening bucket, and the baffles are fixedly installed on the upper screening bucket, the middle screening bucket and the bottom of the lower screening bucket. Edge side of the lower screening bucket;

The fixed structure includes a feed inlet and a conveyor belt. The feed inlet is set on the top side of the screening chamber, and the conveyor belt is arranged outside the screening chamber and connected to an external power supply.

As a further solution of the utility model: the upper screening bucket, the middle screening bucket and the lower screening bucket are vertically arranged in opposite directions and are all at a downward slope angle of 30°, and the upper screening bucket and the lower screening bucket The buckets are installed in the same direction.

As a further solution of the utility model: the upper screening bucket, the middle screening bucket and the lower screening bucket are all provided with openings extending to the outside of the screening chamber, and a conveyor belt is provided below the external opening.

As a further solution of the present invention: the diameters of the screening holes decrease successively from top to bottom, which are 15cm, 10cm and 5cm respectively.

As a further solution of the present invention: the blocking strips are arranged at intervals inside the screening bucket, and the interval distance is between 50-60cm.

As a further solution of the utility model: the baffles are welded to the edges of both sides of the screening bucket, and the baffles are triangular.

The beneficial effects of the utility model are:

1. In the utility model, the upper screening bucket, the middle screening bucket and the lower screening bucket are set up to screen the coal, so that the size of the coal screened out in each screening bucket is kept uniform, and the poured coal can be fully classified. Picking, and the downward inclination angle makes the coal roll and screen better during the vibration process.

2. The advantage of this kind of environmentally friendly coal sorting and screening device for mining is that it is equipped with a vibrator, which drives the vibration of the screening chamber, so that the screening bucket can vibrate and screen the coal to prevent one-time pouring. Too much coal clogging.

3. This kind of environment-friendly coal sorting and screening device for mining is equipped with a collection frame, which collects the broken coal at the bottom of the screening chamber, so that the broken coal or small pieces of coal that occur during the vibration process can be collected Secondary processing is carried out to avoid more coal lumps accumulating at the bottom of the screening cavity and causing blockage, and also avoiding waste and saving resources.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural schematic diagram of the screening bucket of the present invention.

In Figure 1-2: 1-feed inlet, 2-screening cavity, 3-vibrator, 4-upper screening bucket, 5-middle screening bucket, 6-lower screening bucket, 7-conveyor belt, 8- Collection box, 9-screening hole, 10-blocking strip, 11-baffle plate.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments.

Example:

Please refer to Figures 1-2. In the embodiment of the utility model, an environment-friendly coal sorting and screening device for mining includes a screening chamber 2, a screening structure and a fixed structure. The screening structure is installed on the screen from top to bottom. Inside the sub-chamber 2, the fixed structure is set outside the screening chamber 2;

The screening structure includes a vibrator 3, an upper screening bucket 4, a middle screening bucket 5, a lower screening bucket 6, a collection frame 8, a screening hole 9, a blocking strip 10 and a baffle 11. The vibrator 3 is fixedly installed on At the center of the top of the screening chamber 2, the vibration of the screening chamber 2 is driven by the vibrator 3, so that the screening bucket can vibrate and screen the coal to prevent the excessive coal poured in at one time from clogging, and the upper screening bucket 4, The middle screening bucket 5 and the lower screening bucket 6 are fixed and welded inside the screening chamber 2 from top to bottom, and the upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6 are arranged vertically and oppositely And they are all at a downward slope angle of 30°. Since the screening buckets set in the same direction have to be screened one after another until the end, more small pieces will fall, making it difficult for the screening bucket below to screen from the beginning to the end. The screening effect is not good. The screening hopper installed vertically and oppositely can screen the small pieces screened out by the upper screening bucket from the beginning to the end, so that the screening quality is higher, and the upper screening bucket 4 is in the same installation direction as the lower screening bucket 6, and the upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6 are all provided with openings extending to the outside of the screening chamber 2, and a conveyor belt 7 is provided under the external opening, The upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6 screen the coal so that the size of the coal screened out in each screening bucket is kept uniform, and the poured coal can be fully sorted, and the The lower inclination angle makes the coal rolling and screening better during the vibration process. The collection frame 8 is movable and embedded in the bottom of the screening chamber 2, and the collection frame 8 collects the broken coal at the bottom of the screening chamber 2. The fragmentation of coal or small pieces of coal during the vibration process can be collected for secondary processing, avoiding more coal accumulation at the bottom of the screening chamber 2 and causing blockage, and also avoiding waste and saving resources. Screening holes 9 They are all hollowed out at the bottom of the upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6. The diameters of the screening holes 9 decrease from top to bottom, respectively 15cm, 10cm and 5cm. All are fixedly welded to the bottom of the upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6, the blocking strips 10 are arranged in intervals inside the screening bucket, and the interval distance is between 50-60cm, and the baffles 11 are all fixed It is arranged on the edge side of the upper screening bucket 4, the middle screening bucket 5 and the lower screening bucket 6, and the baffle plate 11 is welded to the edges of both sides of the screening bucket, and the baffle plate 11 is triangular in shape;

The fixed structure includes a feed port 1 and a conveyor belt 7. The feed port 1 is set on the top side of the screening chamber 2, and the conveyor belt 7 is arranged outside the screening chamber 2 and connected to an external power supply.

working principle:

When using an environment-friendly coal sorting and screening device for mining of the present utility model, firstly, connect an external power supply, start the vibrator 3, make the inside of the screening chamber 2 vibrate, and put the coal into the sieve from the feed port 1. In the sub-chamber 2, the coal rolls in the upper screening bucket 4 through the vibration of the vibrator 3 and the inclination angle of the screening bucket itself. The large pieces of coal roll from the upper screening bucket 4 to the external conveyor belt 7, and the smaller pieces Fall down from the screening hole 9 to the inside of the middle screening bucket 5 and the lower screening bucket 6 for screening and then roll to the external conveyor belt 7. The fixed spaced resistance strips 10 in the screening bucket can effectively prevent the coal from rolling too fast , and the baffles 11 on both sides can block the coal bouncing up during the vibration to prevent it from popping up or falling, and the collection frame 8 at the bottom of the screening chamber 2 can collect the small coal that is broken during the screening process, so as to carry out secondary screening. processing.

Claims (6)

1. a kind of mining environment protecting type coal sorts screening plant, including screening chamber (2), screening structure and fixed structure, screening Structure is from top to bottom installed on screening chamber (2) inside, and it is external that fixed structure is set to screening chamber (2)；

It is characterized by: screening structure includes vibrator (3), upper screening bucket (4), middle screening bucket (5), lower screening bucket (6), collects Frame (8), screening hole (9), resistance position item (10) and baffle (11), vibrator (3) are fixedly installed in screening chamber (2) top center Place, upper screening struggles against (4), middle screening bucket (5) and lower screening bucket (6) are successively fixedly welded, receipts internal in screening chamber (2) from top to bottom Collection frame (8) activity is embedded in screening chamber (2) inner bottom, and screening hole (9) hollow out is set to screening bucket (4), middle screening It struggles against (5) and lower screening bucket (6) bottom, resistance position item (10) is fixedly welded in upper screening bucket (4), middle screening bucket (5) and lower screening Bucket (6) bottom, baffle (11) are fixedly installed on screening bucket (4), middle screening bucket (5) and lower screening bucket (6) edge side；

Fixed structure includes feed inlet (1) and transmission belt (7), and feed inlet (1) is opened in screening chamber (2) top side, transmission belt (7) screening chamber (2) outside and connection external power supply are set to.

2. mining according to claim 1 sorts screening plant with environment protecting type coal, it is characterised in that: the upper screening bucket (4), it is that vertical opposite direction is arranged and is 30 ° and tilts down angle, and upper sieve that middle screening bucket (5) and lower screening, which struggle against between (6), Point bucket (4) and lower screening (6) installation direction that struggles against are consistent.

3. mining according to claim 1 sorts screening plant with environment protecting type coal, it is characterised in that: the upper screening bucket (4), middle screening struggles against (5) and lower screening bucket (6) is respectively provided with opening perforation and extends to screening chamber (2) outside, and below external opening It is provided with transmission belt (7).

4. mining according to claim 1 sorts screening plant with environment protecting type coal, it is characterised in that: the screening hole (9) hole diameter from top to bottom is sequentially reduced, respectively 15cm, 10cm and 5cm.

5. mining according to claim 1 sorts screening plant with environment protecting type coal, it is characterised in that: resistance position item (10) it is internal to be arranged at intervals at screening bucket, and spacing distance is between 50-60cm.

6. mining according to claim 1 sorts screening plant with environment protecting type coal, it is characterised in that: the baffle (11) It is welded at the both sides of the edge of screening bucket, and baffle (11) is triangular shape.