Train carriage residual coal conveying system based on negative pressure technology

Abstract

The invention relates to the technical field of coal transportation, and discloses a train carriage residual coal conveying system based on a negative pressure technology. Comprising a butt joint pipeline communicated with a carriage discharge port, a connecting pipeline communicated with one end of the butt joint pipeline, a crushing assembly arranged in an inner cavity of the connecting pipeline and used for treating large-particle residual coal, and a conveying pipeline communicated with one end of the connecting pipeline. The device has the beneficial effects that the crushing assembly can be used for crushing large-particle residual coal in conveying, the problem of blockage caused by large residual coal particles is solved, the conveying efficiency of the residual coal is improved, the cleaning component can be used for scraping the residual coal attached to the pipe wall of the conveying pipeline, and the conveying efficiency is improved. The problem that the ventilation cross section area of the conveying pipeline is affected due to the fact that the residual coal is attached to the pipe wall of the conveying pipeline is solved, the residual coal conveying efficiency is improved, the residual coal overflowing from the joint of the filter and the storage tank is recycled through the recycling assembly, and the residual coal collecting effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal transportation, and in particular to a railway carriage residual coal conveying system based on negative pressure technology. Background Art

[0002] When the train carriage residual coal conveying system based on negative pressure technology is working, the negative pressure generating device is first started to generate negative pressure at the air intake port. Then the valve at the connection end between the discharge port and the conveying pipeline is opened, and the residual coal in the carriage is sucked into the conveying pipeline together with the air under the action of the air pressure difference. The mixture of residual coal and air moves along the pipeline to the negative pressure generating device, and passes through the separation device before reaching the air intake port of the device. The separation device separates the residual coal from the mixture, and the residual coal is collected in the storage equipment, while the air is discharged by the negative pressure generating device, completing the conveying and cleaning of the residual coal.

[0003] Negative pressure technology is used to transport excess coal in train carriages. However, there are several shortcomings in this transportation process: the particle sizes of excess coal particles vary, and some large particles of excess coal are easy to block the transportation pipeline during transportation; when the excess coal particles are transported in an environment with high humidity, moisture will adhere to the surface of the particles, enhancing their adhesion, making it easy for the excess coal particles to adhere to the pipe wall of the transportation pipeline, thereby reducing the cross-sectional area of ​​the transportation pipeline and affecting the transportation efficiency of the excess coal; during the transportation of excess coal, some excess coal particles will inevitably overflow from the connection of the pipeline or equipment, polluting the surrounding air quality and endangering the health of the operators. Summary of the invention

[0004] In view of the above-mentioned problems existing in the existing railway carriage residual coal conveying system based on negative pressure technology, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a railway carriage residual coal conveying system based on negative pressure technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: including:

[0007] A docking pipe connected to the unloading port of the carriage, a connecting pipe connected to one end of the docking pipe, a crushing assembly arranged in the inner cavity of the connecting pipe and used for processing large-particle residual coal, a conveying pipe connected to one end of the connecting pipe, a cleaning component arranged in the inner cavity of the conveying pipe and used for cleaning the inner wall of the pipe, a filter connected to one end of the conveying pipe, a vacuum pump whose output end is connected to one end of the filter through an air duct, a storage tank arranged on the outside of the filter, and a recovery assembly arranged on the outside of the connecting pipe and used in conjunction with the crushing assembly, wherein the recovery assembly is used to recycle the overflowed residual coal.

[0008] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the crushing assembly includes two crushing wheels rotatably connected to the inner cavity of the connecting pipe through a bearing seat, a driving gear and a driven gear fixedly installed on the outside of the two crushing wheels, and a driving motor fixedly installed on the outside of the connecting pipe, and the output end of the driving motor is fixedly connected to the end face of the driving gear.

[0009] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the crushing assembly also includes two guide plates fixedly installed in the inner cavity of the connecting pipe, and the two guide plates are respectively fixedly installed at the top and bottom of the inner cavity of the connecting pipe, and the guide plates are inclined toward the crushing wheel.

[0010] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the cleaning component includes a mounting bearing fixedly installed in the inner cavity of the conveying pipe through a connecting rod, a rotating shaft adapted to be installed in the inner ring of the mounting bearing, two fan blades fixedly installed on the outer surface of the rotating shaft, two round rods fixedly installed on the outer surface of the rotating shaft, and a scraper arranged at one end of the round rod.

[0011] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology of the present invention, the number and direction of blades on the two fan blades are the same, and the two round rods are symmetrically arranged.

[0012] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the scraper includes a connecting box body fixedly installed on the end face of the round rod, a plurality of springs fixedly installed in the inner cavity of the connecting box body, a connecting plate fixedly installed on the end face of the spring, and a scraper fixedly installed on the surface of the connecting plate, and the surface of the scraper is in contact with the inner wall of the conveying pipe.

[0013] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the recovery component includes a fan volute fixedly installed on the outside of the connecting pipe, a connecting pipe connected to the input end of the fan volute, a sealing cover body arranged at the connection between the filter and the storage tank, and a return pipe connected to the output end of the fan volute, and the surface of the sealing cover body is provided with an air inlet for air intake.

[0014] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, an impeller for gas conveying is installed inside the fan volute through a wheel disc, and the impeller is fixedly connected to the end face of the crushing assembly through a transmission rod.

[0015] As a preferred solution of the railway carriage residual coal conveying system based on negative pressure technology described in the present invention, the end of the connecting pipe is connected to the inner cavity of the sealing cover body, and one end of the return pipe is connected to the connecting pipe.

[0016] As a preferred solution of the negative pressure technology-based railway carriage residual coal conveying system of the present invention, a threaded sleeve for connection is fixedly installed on the outer side of the connecting pipe, and a sealing gasket for improving the connection sealing is provided in the inner cavity of the threaded sleeve.

[0017] The beneficial effects of the present invention are as follows: the large particles of residual coal in transportation can be crushed by the crushing component, which solves the problem of blockage caused by large residual coal particles, thereby improving the residual coal transportation efficiency; the residual coal attached to the pipe wall of the conveying pipeline can be scraped off by the cleaning component, which solves the problem of residual coal adhering to the pipe wall of the conveying pipeline and affecting the ventilation cross-sectional area of ​​the conveying pipeline, thereby improving the residual coal transportation efficiency; the residual coal overflowing from the connection between the filter and the storage tank can be recovered by the recovery component, thereby improving the collection efficiency of the residual coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing 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. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the crushing component of the present invention.

[0021] Figure 3 It is a schematic diagram of the cleaning component structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the scraping member of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the recycling component of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the connection pipe and the conveying pipe connection of the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1-4 , which is the first embodiment of the present invention, provides a railway carriage residual coal conveying system based on negative pressure technology, and the device comprises:

[0031] A docking pipe 101 connected to the unloading port of the carriage, a connecting pipe 102 connected to one end of the docking pipe 101, a crushing assembly 103 arranged in the inner cavity of the connecting pipe 102 and used for processing large-particle residual coal, a conveying pipe 104 connected to one end of the connecting pipe 102, a cleaning component 105 arranged in the inner cavity of the conveying pipe 104 and used for cleaning the inner wall of the pipe, a filter 106 connected to one end of the conveying pipe 104, a vacuum pump 107 whose output end is connected to one end of the filter 106 through an air duct, a storage tank 108 arranged on the outside of the filter 106, and a recovery assembly 109 arranged on the outside of the connecting pipe 102 and used in conjunction with the crushing assembly 103, wherein the recovery assembly 109 is used to recycle the overflowed residual coal.

[0032] Among them, the crushing component 103 can be used to crush large particles of residual coal during transportation, thereby solving the problem of blockage caused by large residual coal particles, thereby improving the residual coal transportation efficiency. The cleaning component 105 can be used to scrape off the residual coal attached to the wall of the conveying pipe 104, thereby solving the problem of residual coal attached to the wall of the conveying pipe 104 affecting the ventilation cross-sectional area of ​​the conveying pipe 104, thereby improving the residual coal transportation efficiency.

[0033] Specifically, the crushing assembly 103 includes two crushing wheels 103a rotatably connected to the inner cavity of the connecting pipe 102 through a bearing seat, a driving gear 103b and a driven gear 103c fixedly installed on the outside of the two crushing wheels 103a, and a driving motor 103d fixedly installed on the outside of the connecting pipe 102, and the output end of the driving motor 103d is fixedly connected to the end face of the driving gear 103b.

[0034] Among them, the driving motor 103d drives the driving gear 103b to rotate, and the driving gear 103b then drives the driven gear 103c to rotate, and then the driving gear 103b and the driven gear 103c respectively drive the two crushing wheels 103a to rotate at the same time, and the crushing wheel 103a crushes the large particles of residual coal passing through the inner cavity of the connecting pipe 102, reduces the particle size of the residual coal, and avoids blockage caused by large residual coal particles.

[0035] Furthermore, the crushing assembly 103 also includes two guide plates 103e fixedly installed in the inner cavity of the connecting pipe 102. The two guide plates 103e are respectively fixedly installed at the top and bottom of the inner cavity of the connecting pipe 102, and the guide plates 103e are inclined toward the crushing wheel 103a.

[0036] Among them, the air flowing in the inner cavity of the connecting pipe 102 is guided by the guide plate 103e, so that the residual coal particles carried in the air are guided to the meshing point of the two crushing wheels 103a, thereby improving the crushing effect of the crushing wheel 103a on large particles of residual coal and avoiding blockage caused by large particles of residual coal.

[0037] Preferably, the cleaning component 105 includes a mounting bearing 105a fixedly mounted on the inner cavity of the conveying pipe 104 through a connecting rod, a rotating shaft 105b adapted to be mounted on the inner ring of the mounting bearing 105a, two fan blades 105c fixedly mounted on the outer surface of the rotating shaft 105b, two round rods 105d fixedly mounted on the outer surface of the rotating shaft 105b, and a scraper 105e arranged at one end of the round rod 105d.

[0038] Among them, when the air passes through the inside of the conveying pipe 104, the high-speed flowing air drives the fan blades 105c to rotate, and the fan blades 105c drive the rod shaft 105b to rotate, thereby driving the round rod 105d and the scraper 105e to rotate together. The rotating scraper 105e scrapes the wall of the conveying pipe 104, scrapes off the residual coal attached to the wall of the conveying pipe 104, ensures the ventilation cross-sectional area in the inner cavity of the conveying pipe 104, and improves the transportation efficiency of the residual coal.

[0039] Furthermore, the number and direction of the blades on the two fan blades 105c are the same, and the two round rods 105d are symmetrically arranged.

[0040] By setting the number and direction of the blades on the blade 105c to be the same, it is ensured that the direction of the force driving the rotating shaft 105b to rotate is consistent, thereby better driving the scraper 105e to rotate.

[0041] Furthermore, the scraper 105e includes a connecting box body 105e-1 fixedly mounted on the end face of the round rod 105d, a plurality of springs 105e-2 fixedly mounted in the inner cavity of the connecting box body 105e-1, a connecting plate 105e-3 fixedly mounted on the end face of the spring 105e-2, and a scraper 105e-4 fixedly mounted on the surface of the connecting plate 105e-3, and the surface of the scraper 105e-4 contacts the inner wall of the conveying pipe 104.

[0042] Among them, the spring 105e-2 is used to squeeze and push the connecting plate 105e-3, and the connecting plate 105e-3 pushes the scraper 105e-4, so that the surface of the scraper 105e-4 fits tightly with the wall of the conveying pipe 104, thereby improving the effect of the scraper 105e-4 on cleaning the residual coal attached to the wall of the conveying pipe 104.

[0043] When in use, the driving motor 103d drives the driving gear 103b to rotate, and the driving gear 103b then drives the driven gear 103c to rotate, and then the driving gear 103b and the driven gear 103c respectively drive the two crushing wheels 103a to rotate at the same time, and the crushing wheels 103a crush the large particles of residual coal passing through the inner cavity of the connecting pipe 102;

[0044] When air passes through the inside of the conveying pipe 104, the high-speed flowing air drives the fan blades 105c to rotate, and the fan blades 105c drive the rod shaft 105b to rotate, thereby driving the round rod 105d and the scraper 105e to rotate together. The rotating scraper 105e scrapes the wall of the conveying pipe 104 to scrape off the residual coal attached to the wall of the conveying pipe 104.

[0045] In summary, the crushing component 103 can be used to crush large particles of residual coal during transportation, thereby solving the problem of blockage caused by large residual coal particles, thereby improving the residual coal transportation efficiency. The cleaning component 105 can be used to scrape off the residual coal attached to the wall of the conveying pipe 104, thereby solving the problem of residual coal attached to the wall of the conveying pipe 104 affecting the ventilation cross-sectional area of ​​the conveying pipe 104, thereby improving the residual coal transportation efficiency.

[0046] Example 2

[0047] Reference Figure 5-6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a recovery component 109 for recovering the spilled excess coal is provided.

[0048] Specifically, the recovery component 109 includes a fan volute 109a fixedly installed on the outside of the connecting pipe 102, a connecting pipe 109b connected to the input end of the fan volute 109a, a sealing cover 109c sealed at the connection between the filter 106 and the storage tank 108, and a return pipe 109d connected to the output end of the fan volute 109a, and an air inlet for air intake is opened on the surface of the sealing cover 109c.

[0049] Among them, the connection between the filter 106 and the storage tank 108 is sealed by the sealing cover 109c. When the connection is not sealed well, the residual coal particles will overflow from the connection into the sealing cover 109c. With the cooperation of the fan volute 109a and the impeller inside it, the residual coal particles overflowing into the sealing cover 109c will be transported by air and transported to the inner cavity of the connecting pipe 102 again through the connecting pipe 109b and the return pipe 109d, thereby improving the collection effect of the residual coal.

[0050] Specifically, an impeller for gas transportation is installed inside the fan volute 109a through a wheel disc, and the impeller is fixedly connected to the end surface of the crushing assembly 103 through a transmission rod.

[0051] The power of the rotation of the crushing assembly 103 is transmitted to the impeller through the transmission rod, driving the impeller to rotate, and the rotating impeller transports the gas.

[0052] Furthermore, an end of the connecting pipe 109 b is connected to the inner cavity of the sealing cover 109 c , and one end of the return pipe 109 d is connected to the connecting pipe 102 .

[0053] Furthermore, a threaded sleeve 110 for connection is fixedly installed on the outer side of the connecting pipe 102, and a sealing gasket 111 is provided in the inner cavity of the threaded sleeve 110 to improve the sealing performance of the connection.

[0054] Among them, one end of the conveying pipe 104 can be disassembled through the threaded sleeve 110, which is convenient for cleaning the surface of the fan blade 105c in the inner cavity of the conveying pipe 104, ensuring the performance of the fan blade 105c, and improving the sealing of the connection between the conveying pipe 104 and the connecting pipe 102 under the action of the sealing gasket 111.

[0055] When in use, if the connection is not well sealed, the remaining coal particles will overflow from the connection into the sealing cover 109c. The remaining coal particles overflowing into the sealing cover 109c are transported by air through the cooperation of the fan volute 109a and the impeller inside it, and then transported to the inner cavity of the connecting pipe 102 again through the connecting pipe 109b and the return pipe 109d.

[0056] In summary, the excess coal overflowing from the connection between the filter 106 and the storage tank 108 is recovered by the recovery component 109, thereby improving the collection effect of the excess coal.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0058] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0059] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A railway carriage residual coal conveying system based on negative pressure technology, characterized in that: include: A docking pipe (101) connected to a loading port of a carriage, a connecting pipe (102) connected to one end of the docking pipe (101), a crushing assembly (103) arranged in the inner cavity of the connecting pipe (102) and used for processing large-particle residual coal, a conveying pipe (104) connected to one end of the connecting pipe (102), a cleaning component (105) arranged in the inner cavity of the conveying pipe (104) and used for cleaning the inner wall of the pipe, a filter (106) connected to one end of the conveying pipe (104), a vacuum pump (107) whose output end is connected to one end of the filter (106) through an air guide pipe, a storage tank (108) arranged outside the filter (106), and a recovery assembly (109) arranged outside the connecting pipe (102) and used in conjunction with the crushing assembly (103), wherein the recovery assembly (109) is used for recycling the overflowed residual coal.

2. The train compartment residual coal conveying system based on negative pressure technology according to claim 1 is characterized in that: The pulverizing assembly (103) comprises two pulverizing wheels (103a) rotatably connected to the inner cavity of the connecting pipe (102) via a bearing seat, a driving gear (103b) and a driven gear (103c) respectively fixedly mounted on the outside of the two pulverizing wheels (103a), and a driving motor (103d) fixedly mounted on the outside of the connecting pipe (102), wherein the output end of the driving motor (103d) is fixedly connected to the end face of the driving gear (103b).

3. The train carriage residual coal conveying system based on negative pressure technology according to claim 2 is characterized in that: The pulverizing assembly (103) further comprises two guide plates (103e) fixedly mounted in the inner cavity of the connecting pipe (102); the two guide plates (103e) are respectively fixedly mounted at the top and bottom of the inner cavity of the connecting pipe (102); and the guide plates (103e) are arranged to be inclined in the direction of the pulverizing wheel (103a).

4. The train compartment residual coal conveying system based on negative pressure technology according to claim 1 is characterized in that: The cleaning component (105) comprises a mounting bearing (105a) fixedly mounted on the inner cavity of the conveying pipe (104) via a connecting rod, a rotating shaft (105b) adapted to be mounted on the inner ring of the mounting bearing (105a), two fan blades (105c) fixedly mounted on the outer surface of the rotating shaft (105b), two round rods (105d) fixedly mounted on the outer surface of the rotating shaft (105b), and a scraping member (105e) arranged at one end of the round rod (105d).

5. The train carriage residual coal conveying system based on negative pressure technology according to claim 4 is characterized in that: The number and direction of the blades on the two fan blades (105c) are the same, and the two round rods (105d) are symmetrically arranged.

6. The train carriage residual coal conveying system based on negative pressure technology according to claim 5 is characterized in that: The scraper (105e) comprises a connecting box body (105e-1) fixedly mounted on the end surface of the round rod (105d), a plurality of springs (105e-2) fixedly mounted on the inner cavity of the connecting box body (105e-1), a connecting plate (105e-3) fixedly mounted on the end surface of the spring (105e-2), and a scraper (105e-4) fixedly mounted on the surface of the connecting plate (105e-3), wherein the surface of the scraper (105e-4) contacts the inner wall of the conveying pipe (104).

7. The train carriage residual coal conveying system based on negative pressure technology according to claim 1 is characterized in that: The recovery component (109) comprises a fan volute (109a) fixedly mounted on the outside of the connecting pipe (102), a connecting pipe (109b) connected to the input end of the fan volute (109a), a sealing cover (109c) sealed at the connection between the filter (106) and the storage tank (108), and a return pipe (109d) connected to the output end of the fan volute (109a), and an air inlet for air intake is provided on the surface of the sealing cover (109c).

8. The train compartment residual coal conveying system based on negative pressure technology according to claim 7 is characterized in that: An impeller for gas transportation is installed inside the fan volute (109a) via a wheel disc, and the impeller is fixedly connected to the end surface of the pulverizing assembly (103) via a transmission rod.

9. The train compartment residual coal conveying system based on negative pressure technology according to claim 8 is characterized in that: The end of the connecting pipe (109b) is in communication with the inner cavity of the sealing cover body (109c), and one end of the return pipe (109d) is in communication with the connecting pipe (102).

10. The train compartment residual coal conveying system based on negative pressure technology according to claim 8 is characterized in that: A threaded sleeve (110) for connection is fixedly mounted on the outside of the connecting pipe (102), and a sealing gasket (111) for improving the sealing performance of the connection is provided in the inner cavity of the threaded sleeve (110).

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