Screening device for coke screening composition

Abstract

The utility model discloses a screening device for coke screening composition, which comprises a frame, a bearing frame horizontally and slidably connected to the top of the frame, a guide funnel horizontally and slidably connected to the middle of the frame, and a conveying frame arranged below the guide funnel, one end of the bearing frame is connected with a transmission mechanism, and a frame-shaped screen is arranged in the bearing frame. An elastic telescopic positioning structure is arranged on the inner frame wall of the bearing frame, positioning grooves matched with the elastic telescopic positioning structure are formed in the outer walls of the frame-shaped sieves, a first power mechanism is connected between the conveying frame and the bottom of the frame, and the multiple frame-shaped sieves with the mesh number gradually increased in sequence are arranged above the supporting part from top to bottom in a stacked mode; the guide funnel is connected to the middle of the frame through a second power mechanism; according to the device, follow-up work such as manual inspection of a previous particle size and the like can be carried out while screening of a next particle size is carried out, time and labor are saved, the screening efficiency is high, pollution caused by the fact that coke ash escapes to a construction site is prevented, and the device has good practicability and wide adaptability.

Description

Technical Field

[0001] The utility model belongs to the technical field of coke screening equipment, and in particular relates to a screening device used for coke screening components. Background Art

[0002] The screening composition of coke refers to the separation of coke into different particle size grades through a sieve. It can not only describe the distribution of coke particle size, but also is an important indicator for evaluating the size and uniformity of coke particle size. It can be used to estimate the specific surface area and void volume of coke accumulation. The mechanical strength of coke can be evaluated based on the change in specific surface area before and after coke crushing; the void volume of coke accumulation is an important factor in determining the coke accumulation density and coke air intake.

[0003] In the prior art, the commonly used method for determining the screening composition of coke is to take a certain amount of coke samples, screen the obtained samples with a set of standard sieves with specified apertures, and then weigh the mass of the coke of each sieve grade screened out, and use the percentage of the mass of the coke of each sieve grade obtained to the total amount of the sample to express the screening composition of the coke. In the prior art, coke samples are usually screened with manual sieves or with mechanical sieves of different apertures in turn. However, no matter whether a mechanical sieve or a manual sieve is used, the operator is required to manually pass the coke on the sieve through the sieve holes to check whether the coke retained on the sieve can pass through the sieve holes, and then weigh and calculate the screening composition.

[0004] When a coke sample is screened with a manual sieve, not only is it difficult to control the amplitude and frequency of the screening movement, resulting in inaccurate determination of the coke screening composition, but it is also necessary to wait until the screening is completed before manually checking whether the coke retained on the sieve can pass through the sieve holes. It is also necessary to replace the next level of manual sieve for screening of the next particle size only after one screening and manual inspection are completed, which is time-consuming and laborious. When a coke sample is screened with a mechanical sieve, although the amplitude and frequency of the screening movement can be controlled and the determination of the screening composition is not affected, it is necessary to replace the next level of mechanical sieve for screening of the next particle size only after one screening and manual inspection are completed, which is time-consuming and inefficient. In summary, there is an urgent need for an efficient and fast coke screening device. Utility Model Content

[0005] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a screening device for coke screening, comprising a frame, a bearing frame horizontally slidably connected to the top of the frame, a guide funnel horizontally slidably connected to the middle of the frame, and a conveying frame arranged below the guide funnel, wherein:

[0006] One end of the carrying frame is connected to a transmission mechanism, a frame-shaped screen is arranged inside the carrying frame, an elastic telescopic positioning structure is arranged on the inner frame wall of the carrying frame, and a positioning groove matching the elastic telescopic positioning structure is arranged on the outer wall of the frame-shaped screen;

[0007] The conveying frame includes a frame-shaped base and a plurality of columns vertically connected to the frame-shaped base, and the inner sides of the plurality of columns are correspondingly provided with supporting parts. A first power mechanism is connected between the conveying frame and the bottom of the frame, and a plurality of frame-shaped screens with increasing mesh sizes are stacked from top to bottom above the supporting parts, and the guide funnel is connected to the middle part of the frame through a second power mechanism.

[0008] Furthermore, in the above-mentioned screening device for coke screening, the transmission mechanism includes a motor fixed to the top of the frame, a turntable fixedly connected to the output shaft of the motor, and the turntable is connected to the top of the frame through a connecting rod.

[0009] As a specific implementation, in the above-mentioned screening device for coke screening, an ash receiving frame is provided below the plurality of frame-shaped screens in the conveying frame, and the ash receiving frame is supported on a frame-shaped base.

[0010] As a specific embodiment, in the above-mentioned screening device for coke screening, a first protrusion is arranged above the supporting portion, a second protrusion is arranged on the top of the frame-shaped screen, and a limiting groove is arranged on the bottom, and the first protrusion and the second protrusion are both matched with the limiting groove.

[0011] Furthermore, in the above-mentioned screening device for coke screening, the elastic telescopic positioning structure includes a positioning ball, which is anti-drop installed in a blind hole provided on the inner frame wall of the bearing frame, and an elastic member is provided between the positioning ball and the blind hole.

[0012] As a specific implementation, in the above-mentioned screening device for coke screening composition, the first power mechanism includes a plurality of hydraulic cylinders connected to the columns and the bottom of the frame.

[0013] As a specific implementation, in the above-mentioned screening device for coke screening composition, the second power mechanism is the hydraulic cylinder connected between the frame and the guide funnel.

[0014] The screening device for coke screening composition of the utility model has the following advantages and beneficial effects:

[0015] The device has a simple structure and is easy to assemble and disassemble. Through the cooperation between the frame screen, the carrying frame and the transport frame, the next particle size can be screened while subsequent work such as manual inspection of the previous particle size can be carried out. This saves time and effort and has high screening efficiency. An ash receiving frame is supported on the frame base to allow coke ash with smaller particle sizes to fall into the ash receiving frame, thereby preventing coke ash from escaping to the construction site and causing pollution. The device has good practicality, and frame screens of different specifications can be selected according to coke of different particle sizes. It has wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of a screening device for coke screening composition of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a connecting rod in a screening device for coke screening composition of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the frame screen in the screening device used for coke screening of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of a conveying frame in a screening device for coke screening of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a positioning groove in a screening device used for coke screening composition of the utility model.

[0022] Description of reference numerals:

[0023] 1-frame, 2-carrying frame, 3-transport frame, 4-frame screen, 5-positioning groove, 6-guide funnel, 7-lifting part, 8-column, 9-limiting groove, 10-first protrusion, 11-second protrusion, 12-motor, 13-turntable, 14-connecting rod, 15-hydraulic cylinder, 16-ash receiving frame, 17-frame base. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. All other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, the screening device for coke screening of the utility model comprises a frame 1, a supporting frame 2 horizontally slidably connected to the top of the frame 1, a guide funnel 6 horizontally slidably connected to the middle of the frame 1, and a conveying frame 3 arranged below the guide funnel 6, wherein the sliding arrangement of the guide funnel 6 can enable it to avoid the movement channel of the conveying frame 3 when the conveying frame 3 moves upward, wherein a transmission mechanism is connected to one end of the supporting frame 2, a frame-shaped screen 4 is arranged in the supporting frame 2, an elastic telescopic positioning structure is arranged on the inner frame wall of the supporting frame 2, and a positioning groove 5 matching the elastic telescopic positioning structure is arranged on the outer wall of the frame-shaped screen 4; the conveying frame 3 comprises a frame-shaped base 17, a plurality of columns 8 vertically connected to the frame-shaped base 17, and a supporting portion 7 is correspondingly arranged on the inner side of the plurality of columns 8, a first power mechanism is connected between the conveying frame 3 and the bottom of the frame 1, a plurality of frame-shaped screens 4 with increasing mesh sizes are stacked from top to bottom above the supporting portion 7, and the guide funnel 6 is connected to the middle of the frame 1 through a second power mechanism.

[0026] Furthermore, in the screening device for coke screening of the utility model, the transmission mechanism includes a motor 12 fixed to the top of the frame 1, and a turntable 13 fixedly connected to the output shaft of the motor 12. The turntable 13 is connected to the top of the frame 1 through a connecting rod 14. The arrangement is such that a crank slider structure is formed between the connecting rod 14, the turntable 13, and the supporting frame 2. When the motor 12 is started, the turntable 13 rotates together with the motor 12. The rotating turntable 13 drives the connecting rod 14 to reciprocate. The reciprocating connecting rod 14 can push and pull the supporting frame 2 to slide back and forth in the horizontal direction, thereby driving the frame-shaped screen 4 thereon to move horizontally, thereby screening out coke of the target particle size.

[0027] As a specific embodiment, in the screening device for coke screening of the utility model, an ash receiving frame 16 is arranged below the multiple frame-shaped screens 4 in the conveying frame 3, and the ash receiving frame 16 is supported on a frame-shaped base 17. The structure of the ash receiving frame 16 is the same as that of the frame-shaped screen 4, except that the screen is replaced with a non-porous plate or non-porous cloth, and the upper opening of the ash receiving frame 16 is located on the dropping channel of the frame-shaped screen 4. After the screening of the bottom layer of the frame-shaped screen 4 is completed, the coke of the target particle size remains on the screen of the frame-shaped screen 4, and the coke ash with a smaller particle size falls into the large mouth of the guide funnel 6 below it through the screen holes, and then continues to fall and falls from the small mouth of the guide funnel 6 into the ash receiving frame 16 below it.

[0028] As a specific embodiment, in the screening device for coke screening of the utility model, a first protrusion 10 is arranged above the supporting portion 7, a second protrusion 11 is arranged on the top of the frame screen 4, and a limiting groove 9 is arranged at the bottom. The first protrusion 10 and the second protrusion 11 are both matched with the limiting groove 9. In this way, when the limiting groove 9 at the lower part of the upper frame screen 4 is overlapped on the second protrusion 11 on the adjacent lower frame screen 4, the two adjacent frame screens 4 can be overlapped together up and down, and the limiting groove 9 at the lower part of the frame screen 4 can also be overlapped on the first protrusion 10 on the supporting portion 7.

[0029] Furthermore, in the screening device for coke screening of the utility model, the elastic telescopic positioning structure includes a positioning ball, and the positioning ball is anti-detachably installed in a blind hole set on the inner frame wall of the supporting frame 2, and an elastic member is arranged between the positioning ball and the blind hole. When the frame-like screen 4 is located inside the supporting frame 2, the positioning ball is located between the blind hole and the positioning groove 5. At this time, the position of the frame-like screen 4 is relatively fixed. When the frame-like screen 4 is separated from the supporting frame 2 in the vertical direction, the positioning ball is squeezed back into the blind hole by the frame-like screen 4 until the frame-like screen 4 is completely separated from the supporting frame 2 in the vertical direction, and the positioning ball returns to its initial position due to the elastic deformation of the elastic member.

[0030] As a specific implementation, in the screening device for coke screening of the present invention, the first power mechanism includes a plurality of hydraulic cylinders 15 connected to the columns 8 and the bottom of the frame 1. Of course, the first power mechanism may also be other power mechanisms such as a crank slider mechanism.

[0031] As a specific implementation, in the screening device for coke screening composition of the present invention, the second power mechanism is a hydraulic cylinder 15 connected between the frame 1 and the guide funnel 6. Of course, the second power mechanism can also be other power mechanisms such as a crank slider mechanism.

[0032] The working principle of the screening device for coke screening composition of the utility model is:

[0033] The coke screening device is first adjusted, and the frame screen 4 is stacked on the conveying frame 3 in the order of increasing mesh numbers from top to bottom, and the guide funnel 6 is moved away. Then the conveying frame 3 conveys the uppermost frame screen 4 upward to the supporting frame 2, and the conveying frame 3 moves up, and the positioning ball elastically snaps into the positioning groove 5, and the frame screen 4 is temporarily fixed to the supporting frame 2. The conveying frame 3 moves down and resets, and then the guide funnel 6 is reset, and then the coke to be screened is poured into the frame screen 4. Driven by the transmission mechanism, the supporting frame 2 can carry the frame screen 4 and the coke poured therein to reciprocate in the horizontal direction to start a screening to screen out the coke of the target particle size. The coke of the target particle size remains on the screen of the frame screen 4, and the coke with smaller particle size falls into the large mouth of the guide funnel 6 below it through the sieve hole, and then continues to fall, and falls from the small mouth of the guide funnel 6 into the frame screen 4 with larger mesh number adjacent to it below. In the process, after one screening is completed, the frame screen 4 can be removed from the supporting frame 2, and the coke retained thereon can be manually checked to see if it can pass through the sieve hole, and then retained. At the same time, the conveying frame 3 will convey the frame screen 4 of the next mesh number to the supporting frame 2 for screening of the next particle size. When the conveying frame 3 conveys the frame screen 4 of the next mesh number upward, the guide funnel 6 slides horizontally on the frame 1. After the frame screen 4 of the next mesh number is conveyed to the supporting frame 2, the conveying frame 3 moves down and resets again, and the guide funnel 6 slides horizontally in the opposite direction on the frame 1 and resets. After that, the supporting frame 2 can carry the frame screen 4 of the next mesh number and the coke fallen therein to make reciprocating motion in the horizontal direction, and start screening again to screen out the coke of the target particle size. In this cycle, the screening of the next particle size and the manual inspection of the previous particle size or the weighing of the screened coke can be carried out simultaneously until the screening composition of the coke is completed.

[0034] In summary, compared with the prior art, the screening device for coke screening composition of the utility model has the following advantages and beneficial effects:

[0035] The device has a simple structure and is easy to assemble and disassemble. Through the cooperation between the frame screen 4, the supporting frame 2, and the transport frame 3, the next particle size can be screened while the subsequent work such as manual inspection of the previous particle size can be carried out. It saves time and effort and has high screening efficiency. The frame base 17 supports an ash receiving frame 16, so that coke ash with smaller particle size falls into the ash receiving frame 16, preventing the coke ash from escaping to the construction site and causing pollution. It has good practicality, and frame screens 4 of different specifications can be selected according to coke of different particle sizes, and it has wide adaptability.

[0036] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screening device for coke screening composition, characterized in that: The screening device for coke screening composition comprises a frame, a bearing frame horizontally slidably connected to the top of the frame, a guide funnel horizontally slidably connected to the middle of the frame, and a conveying frame arranged below the guide funnel, wherein: One end of the carrying frame is connected to a transmission mechanism, a frame-shaped screen is arranged inside the carrying frame, an elastic telescopic positioning structure is arranged on the inner frame wall of the carrying frame, and a positioning groove matching the elastic telescopic positioning structure is arranged on the outer wall of the frame-shaped screen; The conveying frame includes a frame-shaped base and a plurality of columns vertically connected to the frame-shaped base, and the inner sides of the plurality of columns are correspondingly provided with supporting parts. A first power mechanism is connected between the conveying frame and the bottom of the frame, and a plurality of frame-shaped screens with increasing mesh sizes are stacked from top to bottom above the supporting parts, and the guide funnel is connected to the middle part of the frame through a second power mechanism.

2. The screening device for coke screening composition according to claim 1, characterized in that: The transmission mechanism comprises a motor fixed to the top of a frame, and a turntable fixedly connected to an output shaft of the motor, wherein the turntable is connected to the top of the frame via a connecting rod.

3. The screening device for coke screening composition according to claim 1, characterized in that: An ash receiving frame is arranged below the plurality of frame-shaped screens in the conveying frame, and the ash receiving frame is supported on a frame-shaped base.

4. The screening device for coke screening composition according to claim 1, characterized in that: A first protrusion is arranged above the supporting portion, a second protrusion is arranged on the top of the frame-shaped screen, and a limiting groove is arranged at the bottom, and both the first protrusion and the second protrusion match the limiting groove.

5. The screening device for coke screening composition according to claim 1, characterized in that: The elastic telescopic positioning structure comprises a positioning ball, which is anti-droppingly installed in a blind hole provided on the inner frame wall of the bearing frame, and an elastic member is provided between the positioning ball and the blind hole.

6. The screening device for coke screening composition according to claim 1, characterized in that: The first power mechanism includes a plurality of hydraulic cylinders connected to the columns and the bottom of the frame.

7. The screening device for coke screening composition according to claim 6, characterized in that: The second power mechanism is the hydraulic cylinder connected between the frame and the guide funnel.

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