Fixed-flow-direction wear-resistant T-shaped bulk material conveying pipeline elbow

Abstract

The constant-flow-direction wear-resistant T-shaped bulk material conveying pipeline elbow comprises an elbow body arranged in the constant flow direction, the elbow body comprises a first pipe part and a second pipe part, the first end of the first pipe part is an inlet end, and the second end of the first pipe part is detachably connected with a pipe cap; the pipe cap and the second end of the first pipe part can form a closed box body for stacking bulk materials so as to form a material-to-material wear-resisting area, and a dredging and overhauling opening is formed after the pipe cap is removed from the second end of the first pipe part; the side wall of the first pipe part is communicated with the first end of a second pipe part, and the second end of the second pipe part is an outlet end; a first wear-resistant unit is arranged on the inner side of the inlet end of the first pipe part, and a second wear-resistant unit is arranged on the inner side of the outlet end of the second pipe part. The wear-resistant and easy-to-replace and easy-to-dredge functions are realized, and the practical production problem is solved, so that the failure rate is reduced, the wear resistance is realized, the service life is prolonged, and the replacement is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to bulk pneumatic conveying technology, in particular to a wear-resistant T-shaped bulk conveying pipe elbow with a fixed flow direction. BACKGROUND

[0002] With the continuous updating of environmental protection process technology in the steel industry, the production of raw materials mainly uses coal coke as the main production raw fuel, and with the new development of smelting reduction ironmaking technology, the demand for starch biomass appears in the production of raw materials. In order to implement the new technology of smelting reduction ironmaking, the demand for new starch storage and transportation technology for steel production is increasing.

[0003] Because the traditional steel enterprises mainly use coal coke as the main raw material, with the new development of smelting reduction ironmaking technology, the demand for starch biomass appears, and the starch is transported by pneumatic conveying technology. Therefore, the starch has the problems of high failure rate such as hardening, blocking, and wear and tear during transportation.

[0004] The existing technology proposes to solve the problem of pipeline wear resistance based on wear-resistant lining plate, such as a backpack type wear-resistant ceramic composite elbow (Chinese patent number ZL202420224968.1), a high-wear-resistant feeding pipe elbow (Chinese patent number ZL202322690463.2); the existing technology proposes to solve the problem of pipeline wear resistance based on wear-resistant cast material, such as a method for preventing wear and tear of a lime pipe elbow (Chinese patent number ZL202311721850.6). However, the existing technology has problems such as difficulty in replacing the pipeline, limited service life, and difficulty in unblocking.

[0005] Therefore, the present application is proposed by the present inventor based on years of experience and practice in the relevant industry to overcome the shortcomings of the existing technology. SUMMARY

[0006] The present application aims to provide a wear-resistant T-shaped bulk conveying pipe elbow with a fixed flow direction. The existing technology has problems such as difficulty in replacing the pipeline, limited service life, and difficulty in unblocking during the pipeline conveying process of starch as an adhesive. The present application realizes the functions of wear resistance, easy replacement, and easy unblocking, solves the actual production problems, and thus reduces the failure rate, i.e. increases the service life of wear resistance and facilitates replacement.

[0007] The objective of this invention is achieved as follows: a fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow, comprising an elbow body configured in a fixed flow direction, the elbow body comprising a first pipe section and a second pipe section, the first end of the first pipe section being an inlet end, the second end of the first pipe section being detachably connected to a pipe cap, the pipe cap forming a closed box with the second end of the first pipe section to accumulate bulk material to form a material feeding wear-resistant zone, the second end of the first pipe section forming a de-blocking and inspection port after the pipe cap is removed; the side wall of the first pipe section is conductively connected to the first end of the second pipe section, the second end of the second pipe section being an outlet end; a first wear-resistant unit is provided on the inner side of the first pipe section at the inlet end, and a second wear-resistant unit is provided on the inner side of the second pipe section at the outlet end.

[0008] In a preferred embodiment of the present invention, the first wear-resistant unit is a wear-resistant speed reduction belt disposed on the inner side of the first pipe located at the inlet end, and the wear-resistant speed reduction belt is used to slow down the bulk material and make it turn.

[0009] In a preferred embodiment of the present invention, the wear-resistant speed bump is a striped, non-glossy panel layer.

[0010] In a preferred embodiment of the present invention, the second wear-resistant unit is a wear-resistant liner disposed on the inner side of the second tube located at the outlet end.

[0011] In a preferred embodiment of the present invention, the wear-resistant liner is made of ceramic material.

[0012] In a preferred embodiment of the present invention, a bulk material clustering wear section is provided inside the second tube.

[0013] In a preferred embodiment of the present invention, the outer wall of the first end of the first tube is provided with a first threaded section for connecting to the inlet pipe.

[0014] In a preferred embodiment of the present invention, a second threaded section is provided on the outer wall of the second end of the first tube, and a third threaded section matching the second threaded section is provided on the inner wall of the tube cap.

[0015] In a preferred embodiment of the present invention, the cap is connected to the second end of the first tube by means of a wedge-fitting groove.

[0016] In a preferred embodiment of the present invention, the outer wall of the second end of the second tube is provided with a fourth threaded section for connecting to the outlet pipe.

[0017] As described above, the fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow of the present invention has the following beneficial effects:

[0018] This invention achieves wear resistance, easy replacement, and easy unclogging, solving practical production problems and thus reducing the failure rate. Compared with existing technologies:

[0019] (1) Product life: The present invention forms a closed box by sealing the second end of the first pipe with a pipe cap, and accumulates loose material. During operation, the wear-resistant method of material hitting and material rubbing is adopted to avoid the loose material from rubbing against the elbow body, thereby improving the service life of the elbow body.

[0020] (2) Easy to replace: The present invention designs the maximum impact force and the strongest wear section in the same component elbow. The elbow has a high failure rate. As a high frequency wear consumable material, it can be replaced when it is damaged without affecting the normal use of other pipelines, saving inspection and maintenance time.

[0021] (3) Easy to maintain: In this invention, the pipe cap is used as a wear-resistant layer for collecting materials during installation, and as an inspection port when the pipe cap is removed, which facilitates cleaning and maintenance. Attached Figure Description

[0022] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

[0023] Figure 1 This is a schematic diagram of the installation of the fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow of the present invention.

[0024] Figure 2 This is a schematic diagram of the elbow body of the present invention.

[0025] Figure 3 This is a disassembly diagram showing the elbow body of the present invention with caps installed at both ends of the first pipe section.

[0026] Figure 4 This is a schematic diagram of the assembly and installation of the fixed-flow-direction wear-resistant T-shaped bulk material conveying pipeline elbow of the present invention.

[0027] Figure 5 This is a schematic diagram of discrete element analysis of bulk materials at a pipe bend.

[0028] In the picture:

[0029] 100. Elbow body;

[0030] 11. First pipe section; 111. Inlet end; 112. First wear-resistant unit; 113. First threaded section; 114. Second threaded section;

[0031] 12. Second pipe section; 121. Outlet end; 122. Second wear-resistant unit; 123. Fourth threaded section;

[0032] 200. Pipe cap;

[0033] 300. Inlet pipe;

[0034] 400. Discharge port pipe. Detailed Implementation

[0035] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0036] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] This invention addresses the pipeline transportation technology of starch as a binder in steel enterprises by designing a wear-resistant T-shaped bulk material pipeline elbow with a fixed flow direction, which is both wear-resistant and extends service life, and easy to replace.

[0039] like Figure 1 , Figure 2As shown, the present invention provides a fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow, including an elbow body 100 with a fixed flow direction. The elbow body 100 includes a first pipe section 11 (short pipe) and a second pipe section 12 (long pipe). The first end of the first pipe section 11 is an inlet end 111, and the second end of the first pipe section 11 is detachably connected to a pipe cap 200. The pipe cap 200 and the second end of the first pipe section 11 can form a closed box to accumulate bulk material to form a material feeding wear-resistant zone. After the pipe cap 200 is removed from the second end of the first pipe section 11, a unclog dredging and maintenance port is formed. The first end of the second pipe section 12 is connected to the side wall of the first pipe section 11, and the second end of the second pipe section 12 is an outlet end 121. A first wear-resistant unit 112 is provided inside the inlet end 111 of the first pipe section 11, and a second wear-resistant unit 122 is provided inside the outlet end 121 of the second pipe section 12.

[0040] The elbow body 100 is installed in a fixed flow direction, that is, the direction of the second pipe section 12 port is the same as the material flow direction in the pipe; the second wear-resistant unit 122 enhances the wear resistance of the pipe and improves its service life; the first wear-resistant unit 112 is conducive to the slowing down and accumulation of loose material, forming a dead material wear-resistant layer and improving its service life; the pipe cap 200 can seal the second end of the first pipe section 11 to form a closed box for accumulating loose material, so as to realize the material feeding wear-resistant method; after removing the pipe cap 200 from the second end of the first pipe section 11, a blockage clearing and inspection port is formed, which is convenient for clearing blockage and inspection.

[0041] This invention achieves wear resistance, easy replacement, and easy unclogging, solving practical production problems and thus reducing the failure rate. Compared with the prior art, this invention has the following beneficial effects:

[0042] (1) Product life: The present invention forms a closed box by sealing the second end of the first pipe with a pipe cap, and accumulates loose material. During operation, the wear-resistant method of material hitting and material rubbing is adopted to avoid the loose material from rubbing against the elbow body, thereby improving the service life of the elbow body.

[0043] (2) Easy to replace: The present invention designs the maximum impact force and the strongest wear section in the same component elbow. The elbow has a high failure rate. As a high frequency wear consumable material, it can be replaced when it is damaged without affecting the normal use of other pipelines, saving inspection and maintenance time.

[0044] (3) Easy to maintain: In this invention, the pipe cap is used as a wear-resistant layer for collecting materials during installation, and as an inspection port when the pipe cap is removed, which facilitates cleaning and maintenance.

[0045] Furthermore, the first wear-resistant unit 112 is a wear-resistant speed reduction belt disposed on the inner side of the first pipe section 11 at the inlet end, and the wear-resistant speed reduction belt is used to reduce the speed of the bulk material and make it turn.

[0046] Furthermore, the wear-resistant speed bump has a striped, non-glossy panel layer, which is more conducive to the slowing down and accumulation of bulk materials, forming a dead material wear-resistant layer.

[0047] Furthermore, the second wear-resistant unit 122 is a wear-resistant liner plate disposed on the inner side of the second tube 12 located at the outlet end 121.

[0048] Furthermore, the wear-resistant lining is made of ceramic material to enhance the wear resistance of the pipe and extend its service life.

[0049] Furthermore, a bulk material cluster wear section is provided within the second tube section 12. The length of the second tube section 12 should be long enough to meet the requirements for the installation of the bulk material cluster wear section.

[0050] Furthermore, such as Figure 1 , Figure 2 As shown, the outer wall of the first end of the first pipe section 11 is provided with a first threaded section 113 for connecting to the inlet pipe 300 (prior art). The first end (inlet end 111) of the first pipe section 11 is screwed into the inlet pipe by means of threads.

[0051] Furthermore, such as Figure 1 , Figure 2 As shown, the outer wall of the second end of the first pipe section 11 is provided with a second threaded section 114, and the inner wall of the pipe cap 200 is provided with a third threaded section that matches the second threaded section 114. The pipe cap 200 can be matched with the second end of the first pipe section 11 and tightened to achieve the sealing function.

[0052] Furthermore, the cap 200 can also be connected to the second end of the first tube 11 by wedging into a slot.

[0053] The first end and the second end of the first tube 11 have the same structure and can be interchanged in function, making them more versatile. They can be used for turns from bottom to left as well as turns from top to left.

[0054] like Figure 3 As shown, when the elbow body 100 is not installed on the pipeline, both ends of it can be sealed by the pipe cap 200. After the pipeline is installed, the pipe cap 200 at the first end (inlet end 111) of the first pipe section 11 can be discarded, while the pipe cap at the second end of the first pipe section 11 is retained.

[0055] like Figure 1 As shown, the cap 200 and the second end of the first pipe section 11 form a closed box to accumulate loose material, thereby creating a wear-resistant zone for material feeding and rubbing, achieving a wear-resistant method of material feeding and rubbing. Pipeline transportation is often in a closed space, and loose material slabs onto the pipe wall, causing blockage. After removing the cap 200 from the second end of the first pipe section 11, a blockage-clearing and inspection port is formed, avoiding large-scale disassembly during pipeline maintenance.

[0056] like Figure 4As shown, at the bend of two adjacent pipes, two adjacent pipe caps are used together to create an open space between the two caps, forming a more convenient maintenance passage.

[0057] Furthermore, such as Figure 1 , Figure 2 As shown, the outer wall of the second end of the second pipe section 12 is provided with a fourth threaded section 123 for connecting to the discharge port pipe 400 (prior art). The second end (outlet end 121) of the second pipe section 12 is screwed into the discharge port pipe by means of threads.

[0058] Furthermore, the dimensions of the elbow body 100 of the present invention are adjusted and determined according to the different pipe diameters of the conveying pipeline to which it is applied. Its structural form and port function are the same, thereby realizing the wear resistance and maintenance functions of different pipelines.

[0059] The design and working process of this invention are as follows:

[0060] Design requirements: Figure 5 This invention simulates the movement trajectory of bulk material within a typical bend in a pipe using discrete element analysis (DEM). The diagram shows that the bulk material in the feed straight section (vertical pipe) is discrete; the bend is where the impact and friction forces are greatest; and the bulk material in the discharge straight section (horizontal pipe) is concentrated, with some straight sections experiencing significant friction. The wear-resistant design concept of this invention is based on... Figure 1 Design of bulk material flow pattern for intermediate pipeline bends.

[0061] Installation process: as follows Figure 1 As shown, with Figure 5 Taking the example of bulk material flowing in the same direction, the second pipe section 12 (long pipe) needs to be installed in a fixed flow direction. The first end (inlet pipe) and the second end (connection cap) of the first pipe section 11 are interchangeable and can be installed in any direction. The cap 200 at the port (inlet end 111) of the first pipe section 11 that is connected to the material inlet pipe can be discarded, while the cap at the other end of the first pipe section 11 is retained.

[0062] Wear-resistant process: such as Figure 1 As shown, after installation, the loose material flow is connected. Under the action of the wear-resistant deceleration belt on the inner side of the first end of the first pipe section 11, the loose material decelerates and accumulates a wear-resistant layer at the second end (pipe cap end) of the first pipe section 11. The normally operating material flow will achieve wear resistance at the pipe cap 200 of the elbow body 100 by the principle of material hitting material and material rubbing material. The outlet end 121 of the second pipe section 12 is equipped with a wear-resistant ceramic liner plate, the length of which is sufficient to include the wear-resistant section of the concentrated loose material bundle. The elbow with the maximum impact force and the long pipe end of the strongest friction section are designed as an integrated unit, which is a structure that can both improve service life and make it easy to replace wear-resistant materials.

[0063] Maintenance process: Open the cap 200 at the second end of the first pipe section 11, and the maintenance equipment can enter the pipeline to clear blockages, avoiding large-scale disassembly of the pipeline; such as Figure 4 In the combined installation configuration shown, the caps of two adjacent pipe bends are removed simultaneously, which is more conducive to forming an open pipe channel.

[0064] As described above, the fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow of the present invention has the following beneficial effects:

[0065] This invention achieves wear resistance, easy replacement, and easy unclogging, solving practical production problems and thus reducing the failure rate. Compared with the prior art, this invention has the following beneficial effects:

[0066] (1) Product life: The present invention forms a closed box by sealing the second end of the first pipe with a pipe cap, and accumulates loose material. During operation, the wear-resistant method of material hitting and material rubbing is adopted to avoid the loose material from rubbing against the elbow body, thereby improving the service life of the elbow body.

[0067] (2) Easy to replace: The present invention designs the maximum impact force and the strongest wear section in the same component elbow. The elbow has a high failure rate. As a high frequency wear consumable material, it can be replaced when it is damaged without affecting the normal use of other pipelines, saving inspection and maintenance time.

[0068] (3) Easy to maintain: In this invention, the pipe cap is used as a wear-resistant layer for collecting materials during installation, and as an inspection port when the pipe cap is removed, which facilitates cleaning and maintenance.

[0069] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A wear-resistant T-shaped bulk material conveying pipe elbow with a fixed flow direction, characterized in that, The device includes a bend body with a fixed flow direction. The bend body includes a first pipe section and a second pipe section. The first end of the first pipe section is an inlet end, and the second end of the first pipe section is detachably connected to a pipe cap. The pipe cap and the second end of the first pipe section can form a closed box to accumulate loose material and form a material feeding wear-resistant zone. After the pipe cap is removed from the second end of the first pipe section, a unclog dredging and maintenance port is formed. The side wall of the first pipe section is conductively connected to the first end of the second pipe section, and the second end of the second pipe section is an outlet end. The first pipe section is provided with a first wear-resistant unit inside the inlet end, and the second pipe section is provided with a second wear-resistant unit inside the outlet end.

2. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The first wear-resistant unit is a wear-resistant speed reduction belt disposed on the inner side of the first pipe located at the inlet end, and the wear-resistant speed reduction belt is used to slow down the bulk material and make it turn.

3. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 2, characterized in that, The wear-resistant speed bump is a striped, non-glossy panel layer.

4. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The second wear-resistant unit is a wear-resistant liner plate disposed on the inner side of the second tube located at the outlet end.

5. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 4, characterized in that, The wear-resistant liner is made of ceramic material.

6. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The second tube section is provided with a bulk material cluster wear section.

7. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The outer wall of the first end of the first pipe section is provided with a first threaded section for connecting to the inlet pipe.

8. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The outer wall of the second end of the first tube is provided with a second threaded section, and the inner wall of the tube cap is provided with a third threaded section that matches the second threaded section.

9. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The cap is connected to the second end of the first tube by a wedge-in groove.

10. The fixed-flow-direction wear-resistant T-shaped bulk material conveying pipe elbow as described in claim 1, characterized in that, The outer wall of the second end of the second pipe section is provided with a fourth threaded section for connecting to the outlet pipe.

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