Middle trough assembly and coal-water separation reversed loader

Abstract

The invention discloses a middle trough assembly and a coal-water separation reversed loader. The middle trough assembly is used for the coal-water separation reversed loader and comprises a middle trough body and a movable screen plate arranged on the middle trough body, the movable screen plate comprises a screen plate frame body and movable screen bars arranged on the screen plate frame body, water leakage holes are formed in the screen plate frame body, and the movable screen bars are located on the water leakage holes. And the movable grate bars can move within the range of the water leakage holes. The size of the water leakage holes can be adjusted by moving the movable grate bars in the range of the water leakage holes, so that on one hand, redundant water in a coal-water mixture can be separated; on the other hand, the middle trough assembly is affected by impact force and friction force of raw coal and equipment vibration, so that the movable screen bars move, the movable screen plates can be prevented from being blocked, and effectiveness and reliability of removing redundant water are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of underground coal transportation, and in particular to a middle trough component and a coal-water separation transfer machine. Background Art

[0002] For underground mining faces with large water gushing, the water content in the raw coal is extremely high, and there are many problems in transporting the coal-water mixture underground, including: reducing the effective coal transportation efficiency of the transportation system; increasing the energy consumption of the mine transportation system; when the belt conveyor climbs at a large angle, the coal-water mixture slips on the belt and cannot be effectively transported; and the coal-water mixture is prone to overflow during transportation, making it difficult to maintain and manage the working environment of the entire underground transportation system.

[0003] In the related art, in order to separate the water from the coal-water mixture, some people adopt the method of drilling water leakage holes on the middle plate of the trough in the chute transport link to allow part of the water to leak out and realize the separation of water and raw coal. However, the simple "drilling" solution has the problem that the water leakage holes are easily blocked and fail. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] In view of this, the present invention provides a middle trough assembly and a coal-water separation transfer machine, wherein the middle trough assembly can move within the range of the leakage hole through the movable screen bar and can adjust the size of the leakage hole, so as to separate the excess water in the coal-water mixture on the one hand; on the other hand, the middle trough assembly is affected by the impact force and friction of the raw coal and the vibration of the equipment, so that the movable screen bar moves, thereby avoiding the blockage of the movable screen plate, thereby realizing the effectiveness and reliability of removing excess water.

[0006] Specifically, the following technical solutions are included:

[0007] An embodiment of the first aspect of the present invention provides a middle trough assembly for a coal-water separation transfer machine, the middle trough assembly comprising: a middle trough body and a movable screen plate arranged on the middle trough body, the movable screen plate comprising: a screen plate frame and movable screen bars arranged on the screen plate frame, the screen plate frame is provided with a water leakage hole, the movable screen bar is located on the water leakage hole, and the movable screen bar can move within the range of the water leakage hole.

[0008] Optionally, the sieve plate frame comprises:

[0009] A screen frame, wherein the screen frame is provided with a plurality of long holes, and each of the long holes is provided with a plurality of the movable screen bars;

[0010] The partition bar is arranged on both sides of the long hole, and a transverse rib plate is arranged on the partition bar. A first arc-shaped groove is formed between two adjacent transverse rib plates, and both ends of the movable screen bar are located in the first arc-shaped groove.

[0011] Optionally, the sieve plate frame further comprises:

[0012] A fixed screen bar is arranged in the long hole, and a plurality of the fixed screen bars are arranged in each of the long holes. Two adjacent fixed screen bars form the leakage hole. The fixed screen bar and the movable screen bar are arranged at intervals. The movable screen bar is located on the leakage hole or at least part of the movable screen bar is located in the leakage hole.

[0013] Optionally, the projection of the fixed screen bar on the transverse rib plate is an isosceles trapezoid, and the long base side of the isosceles trapezoid is arranged toward the coal-water mixture, and the short base side of the isosceles trapezoid is arranged away from the coal-water mixture.

[0014] Optionally, the spacer includes a first spacer and a second spacer, the first spacer is spaced apart from the second spacer, the width of the first spacer is smaller than the width of the second spacer, and the distance between two adjacent second spacers is the same as the center distance of the scraper double chain.

[0015] Optionally, the middle trough assembly also includes a pressure plate, which includes: a first pressure plate and a second pressure plate, the first pressure plate is located on the first partition bar, and the width of the first pressure plate matches the width of the first partition bar, the second pressure plate is located on the second partition bar, and the width of the second pressure plate matches the width of the first partition bar.

[0016] Optionally, a second arcuate groove is provided on the side of the pressure plate facing the screen frame, and the second arcuate groove and the first arcuate groove form a circular hole, and the circular hole is used to accommodate the movable screen bar, and the circular hole and the movable screen bar are gap-matched.

[0017] Optionally, the fixed screen bars and the movable screen bars form a gap, and the width of the gap is 2 mm to 15 mm.

[0018] Optionally, the middle trough assembly further comprises a connecting piece which passes through the middle trough body and the movable screen plate.

[0019] The embodiment of the second aspect of the present invention provides a coal-water separation transfer machine, comprising:

[0020] A mid-tank assembly as described above.

[0021] The middle tank assembly and the coal-water separation transfer machine provided by the embodiment of the present invention, wherein the middle tank assembly includes a middle tank body and a movable screen plate, the movable screen plate is arranged on the middle tank body, a through hole is arranged on the middle tank body, the movable screen plate covers the through hole, and the movable screen plate is fixedly connected to the middle tank body. The movable screen plate includes a screen plate frame and movable screen bars, the screen plate frame is provided with a water leakage hole, and the movable screen bar is located on the water leakage hole. The setting of the water leakage hole can facilitate the leakage of excess water in the coal-water mixture; because the middle tank assembly will be affected by the impact force and friction of the raw coal and the vibration of the equipment, the movable screen bar can move within the range of the water leakage hole to achieve dynamic adjustment of the gap of the water leakage hole, which can avoid the clogging of the water leakage hole and affect the leakage of excess water in the coal-water mixture. On the one hand, the excess water in the coal-water mixture is discharged, the efficiency of coal transportation is improved, and slipping during transportation is avoided; on the other hand, the raw coal can be prevented from clogging the water leakage hole, and the effectiveness and reliability of the discharge of excess water in the coal-water mixture can be achieved.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of a middle tank assembly according to an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of a movable screen plate according to an embodiment of the present invention;

[0026] Figure 3 Based on Figure 2 Schematic diagram of AA of the embodiment;

[0027] Figure 4 A schematic diagram of a screen plate frame according to an embodiment of the present invention;

[0028] Figure 5 Based on Figure 4 Schematic diagram of BB of the embodiment;

[0029] Figure 6 Schematic diagram of a first pressing plate or a second pressing plate according to an embodiment of the present invention.

[0030] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:

[0031] 100 middle trough assembly, 110 middle trough body, 120 movable screen plate, 121 screen plate frame, 1211 screen frame, 1212 fixed screen bars, 1213 transverse ribs, 1214 first spacer bars, 1215 second spacer bars, 1216 leakage holes, 1217 first arc-shaped grooves, 122 first pressure plates, 1221 second arc-shaped grooves, 123 second pressure plates, 124 bolts, 125 movable screen bars, 130 connecting parts. DETAILED DESCRIPTION

[0032] 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 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.

[0033] Before further describing the embodiments of the present invention in detail, the directional nouns involved in the embodiments of the present invention, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the protection scope of the present invention.

[0034] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] Figure 1 A schematic diagram of a middle tank assembly according to an embodiment of the present invention; Figure 2 A schematic diagram of a movable screen plate according to an embodiment of the present invention; Figure 3 Based on Figure 2 Schematic diagram of AA of an embodiment.

[0036] like Figures 1 to 3 As shown, one embodiment of the present invention provides a middle tank assembly 100 for a coal-water separation transfer machine, the middle tank assembly 100 comprises: a middle tank body 110 and a movable screen plate 120 arranged on the middle tank body 110, the movable screen plate 120 comprises: a screen plate frame 121 and movable screen bars 125 arranged on the screen plate frame 121, the screen plate frame 121 is provided with a water leakage hole 1216, the movable screen bar 125 is located on the water leakage hole 1216, and the movable screen bar 125 can move within the range of the water leakage hole 1216.

[0037] The middle tank assembly 100 includes a middle tank body 110 and a movable screen plate 120. The movable screen plate 120 is arranged on the middle tank body 110. A through hole is arranged on the middle tank body 110. The movable screen plate 120 covers the through hole and is fixedly connected to the middle tank body 110. The movable screen plate 120 includes a screen plate frame 121 and movable screen bars 125. A water leakage hole 1216 is arranged on the screen plate frame 121. The movable screen bars 125 are located on the water leakage hole 1216. The arrangement of the water leakage hole 1216 can facilitate the leakage of excess water in the coal-water mixture. Since the middle tank assembly 100 is affected by the impact force and friction of the raw coal and the vibration of the equipment, the movable screen bars 125 can move within the range of the water leakage hole 1216 to achieve dynamic adjustment of the gap of the water leakage hole 1216, which can avoid the blockage of the water leakage hole 1216 and affect the leakage of excess water in the coal-water mixture. On the one hand, it can discharge excess water in the coal-water mixture, improve the efficiency of coal transportation and avoid slipping during transportation; on the other hand, it can prevent the raw coal from clogging the leakage holes, thereby achieving the effectiveness and reliability of discharging excess water in the coal-water mixture.

[0038] Specifically, when the coal-water mixture is transported by the coal-water separation transfer machine in the chute, when the coal-water mixture passes through the middle trough assembly 100 of the present invention under the scraping of the scraper chain, a large amount of water leaks to the lower chain path through the movable screen plate 120 of the middle trough assembly 100, and the raw coal continues to stay on the upper part of the movable screen plate 120 of the middle trough assembly 100 and is transported away, thereby achieving the purpose of dehydrating the raw coal. During the separation of the coal-water mixture, the movable screen bar 125 will be affected by the impact force, friction force and vibration of the raw coal during the scraping and transportation of the scraper chain, so that the movable screen bar 125 can be continuously and flexibly changed within the range of the water leakage hole 1216, thereby achieving the purpose of dynamically adjusting the gap of the water leakage hole 1216, thereby solving the problem of blockage of the movable screen plate 120 and ensuring the reliability of the discharge of excess water from the coal-water mixture.

[0039] It can be understood that the movable screen bar 125 is cylindrical, which is more convenient for the movable screen bar 125 to move, such as the axial and radial movement of the movable screen bar 125 , and the circumferential rotation of the movable screen bar 125 .

[0040] Figure 4 A schematic diagram of a screen plate frame according to an embodiment of the present invention; Figure 5 Based on Figure 4 Schematic diagram of BB of the embodiment.

[0041] In a possible implementation, Figure 4 and Figure 5 As shown, the screen frame 121 includes:

[0042] A screen frame 1211, wherein the screen frame 1211 is provided with a plurality of long holes, and each of the long holes is provided with a plurality of movable screen bars 125;

[0043] The partition bar is arranged on both sides of the long hole, and a transverse rib plate 1213 is provided on the partition bar. A first arc-shaped groove 1217 is formed between two adjacent transverse rib plates 1213 , and both ends of the movable screen bar 125 are located in the first arc-shaped groove 1217 .

[0044] Among them, the leakage hole 1216 is a part of the long hole, and multiple movable screen bars 125 are located on the long hole. The long hole can be divided into multiple leakage holes 1216 by the movable screen bars 125. The movable screen bars 125 move on the long hole, mainly including axial, radial and circumferential rotation, so as to realize flexible adjustment of the sizes of multiple leakage holes 1216, avoid blockage of the leakage holes 1216, and improve the smooth discharge of excess water in the coal-water mixture.

[0045] It should be noted that, through the setting of the spacer, it is possible to achieve Figure 2 The movable screen bars 125 are disconnected in the vertical direction, that is, a plurality of independent movable screen bars 125 can be arranged in the vertical direction, thereby improving the flexibility of the movable screen bars 125, avoiding the blockage of the water leakage holes 1216, and improving the reliability of the discharge of excess water in the coal-water mixture.

[0046] In this embodiment, a plurality of transverse ribs 1213 are provided on the partition bar. The provision of the transverse ribs 1213 can improve the strength of the screen plate frame 121. At the same time, a first arc-shaped groove 1217 is formed between two adjacent transverse ribs 1213 for placing the movable screen bar 125, thereby realizing the positioning of the movable screen bar 125.

[0047] In a feasible embodiment, the screen plate frame 121 further includes:

[0048] The fixed screen bars 1212 are arranged in the long holes. A plurality of fixed screen bars 1212 are arranged in each long hole. Two adjacent fixed screen bars 1212 form a leakage hole 1216. The fixed screen bars 1212 and the movable screen bars 125 are arranged at intervals. The movable screen bars 125 are located on the leakage hole 1216 or at least part of the movable screen bars 125 are located in the leakage hole 1216.

[0049] In this embodiment, the sieve plate frame 121 also includes fixed sieve bars 1212. The arrangement of the fixed sieve bars 1212 can improve the strength of the sieve plate frame 121, avoid the long strip holes being too long and affecting the load-bearing capacity of the sieve plate frame 121, and thus improve the service life of the sieve plate frame 121.

[0050] Among them, a plurality of fixed screen bars 1212 are evenly arranged in each long hole, and a water leakage hole 1216 is formed between two adjacent fixed screen bars 1212, and the movable screen bar 125 is located above the water leakage hole 1216, or at least part of the movable screen bar 125 is located in the water leakage hole 1216. At the same time, the first arc-shaped groove 1217 is located between two adjacent fixed screen bars 1212, so that the fixed screen bar 1212 and the movable screen bar 125 can be arranged at intervals, and the movable screen bar 125 can be moved on the water leakage hole 1216, so that the size of the water leakage hole 1216 can be dynamically adjusted to avoid the water leakage hole 1216 from being blocked. That is to say, when the leakage hole 1216 is blocked by raw coal, due to the impact force and friction of the raw coal and the vibration of the equipment, the movable screen bar 125 undergoes radial, axial and circumferential rotation movements, so that the raw coal blocked in the leakage hole 1216 can be discharged from the leakage hole together with the moisture, and will not remain in the leakage hole 1216 for a long time and cause blockage.

[0051] In a feasible implementation, the projection of the fixed screen bars 1212 on the transverse rib plate 1213 is an isosceles trapezoid, and the long bottom side of the isosceles trapezoid is arranged toward the coal-water mixture, and the short bottom side of the isosceles trapezoid is arranged away from the coal-water mixture.

[0052] Among them, the projection of the fixed screen bar 1212 on the transverse rib plate 1213 is an isosceles trapezoid, and one side of the long bottom is facing the direction of the coal-water mixture. Since the screen frame 1211 has a certain thickness, the water leakage hole 1216 has a certain height. Such a setting makes the distance between the fixed screen bar 1212 and the movable screen bar 125 close to one end of the coal-water mixture smaller than the distance between the fixed screen bar 1212 and the movable screen bar 125 away from one end of the coal-water mixture. In other words, the direction toward the coal-water mixture is defined as the upper direction, and the direction away from the coal-water mixture is defined as the lower direction. Then, the gap between the movable screen bar 125 and the fixed screen bar 1212 gradually increases from top to bottom, making it easier for critical small particles of raw coal to leak down, further playing an anti-blocking effect, improving the smooth discharge of excess water in the coal-water mixture, and avoiding the coal-water mixture from slipping on the belt during transportation, which cannot be effectively transported, that is, improving the transportation efficiency of the raw coal. At the same time, it can also prevent the coal-water mixture from overflowing during transportation, reduce the difficulty of maintaining and managing the working environment of the transportation system, and reduce the work intensity of the staff.

[0053] It is understandable that the fixed screen bars 1212 and the screen frame 1211 are integrally formed, thereby ensuring the strength and service life of the screen plate frame 121 .

[0054] In a feasible embodiment, the spacer includes a first spacer 1214 and a second spacer 1215, the first spacer 1214 and the second spacer 1215 are arranged at intervals, the width of the first spacer 1214 is smaller than the width of the second spacer 1215, and the distance between two adjacent second spacers 1215 is the same as the center distance of the scraper double chain.

[0055] Among them, the first partition bar 1214 and the second partition bar 1215 are arranged at intervals, and the width of the second partition bar 1215 is greater than the width of the first partition bar 1214, so that the scraper chain can be located above the second partition bar 1215, providing a working area for the scraper chain, avoiding the scraper chain from wearing the movable screen bar 125, and improving the service life and replacement time of the movable screen bar 125.

[0056] It should be noted that, through the setting of the spacer, it is possible to achieve Figure 2 The movable screen bars 125 are disconnected in the vertical direction, that is, a plurality of independent movable screen bars 125 can be arranged in the vertical direction, thereby improving the flexibility of the movable screen bars 125, avoiding the blockage of the water leakage holes 1216, and improving the smooth discharge of excess water in the coal-water mixture.

[0057] Figure 6 Schematic diagram of a first pressing plate or a second pressing plate according to an embodiment of the present invention.

[0058] In a possible implementation, Figure 6 As shown, the middle trough assembly 100 also includes a pressure plate, which includes: a first pressure plate 122 and a second pressure plate 123, the first pressure plate 122 is located on the first partition bar 1214, and the width of the first pressure plate 122 matches the width of the first partition bar 1214, and the second pressure plate 123 is located on the second partition bar 1215, and the width of the second pressure plate 123 matches the width of the first partition bar 1214.

[0059] The first pressing plate 122 and the second pressing plate 123 are arranged at intervals. In this embodiment, three first pressing plates 122 and two second pressing plates 123 are used. The center distance between two adjacent second pressing plates 123 is consistent with the center distance between the double chains of the scraper transfer machine, so that Figure 2 The two second pressing plates 123 in the middle and the lower part can be used as chain paths, which can prevent the scraper chain from wearing the movable screen bar 125 and increase the service life of the movable screen bar 125; on the other hand, they can also support the scraper chain and increase the service life of the scraper chain. At the same time, when the second pressing plate 123 is worn to a certain extent, the second pressing plate 123 can be directly replaced. Replacing parts separately can improve the economic efficiency of the enterprise.

[0060] It can be understood that the first pressing plate 122 and the second pressing plate 123 have the same structure, but different widths. Figure 6The schematic diagram can simultaneously reflect the structures of the first pressing plate 122 and the second pressing plate 123.

[0061] In a feasible embodiment, a second arcuate groove 1221 is provided on the side of the pressure plate facing the screen frame 1211 , and the second arcuate groove 1221 and the first arcuate groove 1217 form a circular hole for accommodating the movable screen bar 125 , and the circular hole and the movable screen bar 125 are gap-matched.

[0062] Among them, the middle trough assembly 100 includes a sieve plate frame 121, a pressure plate and a movable screen bar 125. The movable screen bar 125 is positioned on the sieve plate frame 121 by the pressure plate. A second arc-shaped groove 1221 is provided on the side of the sieve frame 1211 of the pressure plate facing the sieve plate frame 121. A first arc-shaped groove 1217 is formed on the partition bar. The first arc-shaped groove 1217 and the second arc-shaped groove 1221 form a circular hole. Both ends of the movable screen bar 125 are located in the circular hole. The diameter of the circular hole is larger than the diameter of the movable screen bar 125, that is, the circular hole and the movable screen bar 125 are clearance-matched, so that the movable screen bar 125 can move radially and circumferentially within the range of the circular hole, and can dynamically adjust the size of the leakage hole 1216, thereby avoiding blockage of the leakage hole 1216.

[0063] It should be noted that the bolts 124 are used to fix the pressure plate and the screen frame 121. The bolts 124 avoid the circular holes to achieve a fixed connection, which can ensure the movement of the movable screen bars 125 in the circular holes. In other words, the bolts 124 pass through the transverse rib plate 1213 to achieve a fixed connection between the pressure plate and the screen frame 1211, which can improve the strength of the fixed connection.

[0064] It can be understood that the pressing plate includes a first pressing plate 122 and a second pressing plate 123, and the width of the second pressing plate 123 is greater than that of the first pressing plate 122. In this embodiment, there are four long holes, and there are five pressing plates, including three first pressing plates 122 and two second pressing plates 123. At the same time, the movable screen bars 125 on two adjacent long holes are independently arranged, so that both ends of each movable screen bar 125 are positioned by a first pressing plate 122 and a second pressing plate 123, and Figure 2 In the upper and lower directions, two adjacent movable screen bars 125 are independent rather than an integral through-length structure, and it is ensured that in a stationary state, there is a gap between the two movable screen bars 125 in the upper and lower directions. In this way, under the influence of the impact force and friction of the raw coal and the vibration of the equipment, the movable screen bar 125 can also realize axial movement, thereby improving the flexibility of the movement of the movable screen bar 125, and thus effectively avoiding the blockage of the leakage hole 1216.

[0065] In a feasible implementation manner, the fixed screen bars 1212 and the movable screen bars 125 form a gap, and the width of the gap is 2 mm to 15 mm.

[0066] Among them, the adjacent fixed screen bars 1212 form a leakage hole 1216, and the movable screen bars 125 are located above the leakage hole 1216, or at least part of the movable screen bars 125 are located in the leakage hole 1216, so that a gap is formed between the movable screen bars 125 and the fixed screen bars 1212, and the width of the gap can be 2mm to 15mm. The movable screen plates 120 with different gaps are selected according to different working conditions to improve the applicability of the middle trough assembly 100.

[0067] It can be understood that the gap refers to the distance between the position of the movable screen bar 125 when it is stationary and the adjacent fixed screen bar 1212, that is, at this time, the distance between the movable screen bar 125 and the fixed screen bars 1212 on both sides is equal. When the middle trough assembly 100 is working, under the impact force and friction of the raw coal and the influence of the vibration of the equipment, the movable screen bar 125 will move, and the gap will also change.

[0068] In a feasible implementation manner, the middle tank assembly 100 further includes a connecting piece 130 penetrating the middle tank body 110 and the movable screen plate 120 .

[0069] The connecting member 130 is used to fix the middle tank body 110 and the movable screen plate 120 to prevent the movable screen plate 120 from moving on the middle tank body 110 due to vibration and the like, thereby affecting the use effect of the middle tank assembly 100 .

[0070] It should be noted that the connecting piece 130 is usually bolts and nuts, that is, the movable screen plate 120 on the middle trough assembly 100 of the coal-water separation transfer machine for the trough is installed on the middle trough body 110 by bolts and nuts, and the movable screen plate 120 can be disassembled at any time. According to actual needs, the movable screen plate 120 with different gaps can be replaced to improve the coal transportation efficiency; when the coal-water separation function is not needed, the movable screen plate 120 can also be replaced with a conventional middle plate, which makes the use of the middle trough assembly 100 more flexible, can adapt to different working scenarios, and improve the scope of application of the middle trough assembly 100.

[0071] It can be understood that the connecting member 130 can also be a combination of a groove and a protrusion, such as a groove is provided on the side of the middle tank body 110 facing the movable screen plate 120, and a protrusion is provided on the side of the movable screen plate 120 facing the middle tank body 110; or a protrusion is provided on the side of the middle tank body 110 facing the movable screen plate 120, and a groove is provided on the side of the movable screen plate 120 facing the middle tank body 110, and the protrusion matches the groove to achieve fixed connection between the middle tank body 110 and the movable screen plate 120. The connecting member 130 can also be other ways to fixedly connect the middle tank body 110 and the movable screen plate 120, which will not be described one by one.

[0072] Another embodiment of the present invention provides a coal-water separation transfer machine, which includes the middle tank assembly of the above embodiment.

[0073] Among them, the middle trough body and the movable screen plate in the middle trough assembly are detachably connected, so the middle trough assembly can be replaced according to different working conditions and usage requirements. When the coal-water separation function is not needed, the movable screen plate can be replaced with a conventional middle plate to improve the application range of the middle trough assembly. At the same time, the movable screen bar is also positioned on the screen plate frame by a pressure plate, and can be flexibly replaced when the movable screen bar is worn or damaged. Since the movable screen bar is cylindrical, and the circular hole formed by the pressure plate and the spacer bar is a clearance fit with the movable screen bar, the movable screen bar can move axially and radially within the range of the circular hole, as well as rotate axially, thereby realizing the flexible rotation of the movable screen bar, realizing the self-adjustment of the gap of the leakage hole, avoiding the raw coal from blocking the leakage hole, and ensuring the smooth discharge of excess water in the coal-water mixture, thereby improving the subsequent coal transportation efficiency, and avoiding the occurrence of the inability to transport due to slipping.

[0074] It should be noted that, since the coal-water separation transfer machine includes the above-mentioned middle tank assembly, it also has all the advantages of the above-mentioned middle tank assembly, which will not be repeated.

[0075] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0076] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The description and examples are to be considered exemplary only.

[0077] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A middle tank assembly for a coal-water separation transfer machine, characterized in that: The middle trough assembly includes: a middle trough body and a movable screen plate arranged on the middle trough body, the movable screen plate includes: a screen plate frame and movable screen bars arranged on the screen plate frame, the screen plate frame is provided with a water leakage hole, the movable screen bar is located on the water leakage hole, and the movable screen bar can move within the range of the water leakage hole.

2. The middle tank assembly according to claim 1, characterized in that: The sieve plate frame comprises: A screen frame, wherein the screen frame is provided with a plurality of long holes, and each of the long holes is provided with a plurality of the movable screen bars; The partition bar is arranged on both sides of the long hole, and a transverse rib plate is arranged on the partition bar. A first arc-shaped groove is formed between two adjacent transverse rib plates, and both ends of the movable screen bar are located in the first arc-shaped groove.

3. The middle tank assembly according to claim 2, characterized in that: The sieve plate frame also includes: A fixed screen bar is arranged in the long hole, and a plurality of the fixed screen bars are arranged in each of the long holes. Two adjacent fixed screen bars form the leakage hole. The fixed screen bar and the movable screen bar are arranged at intervals. The movable screen bar is located on the leakage hole or at least part of the movable screen bar is located in the leakage hole.

4. The middle tank assembly according to claim 3, characterized in that: The projection of the fixed screen bar on the transverse rib plate is an isosceles trapezoid, and the long bottom side of the isosceles trapezoid is arranged toward the coal-water mixture, and the short bottom side of the isosceles trapezoid is arranged away from the coal-water mixture.

5. The middle tank assembly according to claim 2, characterized in that: The spacer includes a first spacer and a second spacer, the first spacer is spaced apart from the second spacer, the width of the first spacer is smaller than the width of the second spacer, and the distance between two adjacent second spacers is the same as the center distance of the scraper double chain.

6. The middle tank assembly according to claim 5, characterized in that: The middle trough assembly also includes a pressure plate, which includes: a first pressure plate and a second pressure plate, the first pressure plate is located on the first partition bar, and the width of the first pressure plate matches the width of the first partition bar, the second pressure plate is located on the second partition bar, and the width of the second pressure plate matches the width of the first partition bar.

7. The middle tank assembly according to claim 6, characterized in that: A second arcuate groove is provided on the side of the pressure plate facing the screen frame. The second arcuate groove and the first arcuate groove form a circular hole. The circular hole is used to accommodate the movable screen bar, and the circular hole and the movable screen bar are gap-matched.

8. The middle tank assembly according to claim 3, characterized in that: The fixed screen bars and the movable screen bars form a gap, and the width of the gap is 2 mm to 15 mm.

9. The middle tank assembly according to any one of claims 1 to 8, characterized in that: The middle tank assembly also includes a connecting piece that passes through the middle tank body and the movable screen plate.

10. A coal-water separation transfer machine, characterized in that: The coal-water separation transfer machine comprises: A mid-tank assembly as claimed in any one of claims 1 to 9.

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