Structure for enhancing pneumatic conveying fluidization effect

Abstract

The utility model relates to the field of coal ash conveying equipment, in particular to a structure for enhancing the pneumatic conveying fluidization effect, which comprises a fluidization core arranged in an output pipe of an air supply device and an air supply pipe arranged at one end of the air supply device, the fluidization core is arranged in a frustum shape, and fluidization blades are fixedly connected on the circumferential side wall of the fluidization core. The thickness of the fluidization blades is gradually reduced from the small-size end of the fluidization core to the large-size end of the fluidization core, the fluidization blades are arranged in an inclined mode, the included angle between the fluidization blades and the axis of the fluidization core is any numerical value ranging from 30 degrees to 45 degrees, and the fluidization blades are smoothly sunken in the inclined direction with the center as the sunken point; the multiple fluidization blades are evenly distributed along the circumferential side face of the fluidization core, the adjacent fluidization blades are parallel to each other, the side face, away from the fluidization core, of each fluidization blade is fixedly connected into the output pipe in a welded mode, the axis of the fluidization core and the axis of the output pipe are collinear, and the purposes of reducing the air supply frequency and improving the air supply efficiency are achieved. And energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fly ash conveying equipment technical field, concretely relates to a structure of enhancing fluidization effect of pneumatic conveying. BACKGROUND

[0002] Fly ash conveying by compressed air is a technology for conveying fly ash generated by a boiler and the like to an ash silo or a slag bin and the like for unified treatment. At present, most fly ash conveying systems have not been systematically reconstructed and upgraded, and still use a relatively traditional high-pressure dilute phase conveying mode or a relatively energy-saving double-jacket pipe conveying or small bin pump conveying. Taking the high-pressure dilute phase conveying mode as an example, this mode adopts a high-pressure suspension flow conveying method, so that the fly ash is pressurized and fluidized in the bin pump and is in a suspended state in the ash pipe and is conveyed to the slag bin at the end of the pipe line along with the high-pressure air flow.

[0003] During the operation of the high-pressure suspension flow fly ash conveying, the fly ash needs to be pressurized in the bin pump to enter a fluidized state, and a high-pressure air flow needs to be continuously supplied in the fly ash conveying pipeline to ensure stable operation of the system. During the conveying process, when the fly ash passes through a pipeline position with a pressure drop (such as a bend or a climbing pipeline), the fly ash is prone to settling and accumulating in the pipeline, causing the pipeline to be blocked.

[0004] In order to avoid this situation, the current pneumatic conveying system generally selects to add several air supplementers with output pipes at the positions of the bends and long straight pipe sections. The air supplementer supplements air into the fly ash conveying pipeline according to the set program during the operation of the fly ash, and the high-pressure air flow supplemented into the fly ash conveying pipeline through the output pipe has a disturbing effect on the settled fly ash, so that the fly ash is refluidized and kept in a conveyable state.

[0005] The above-mentioned prior art has the following defects:

[0006] Although the air supplementing system is an indispensable part of the pneumatic conveying, the overall use process may cause waste of compressed air and energy waste due to frequent air supplementing or too many air supplementing systems. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a structure of enhancing fluidization effect of pneumatic conveying, achieving the effect of reducing the air supplementing frequency and saving energy, so as to solve the problems in the above-mentioned background technology.

[0008] In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the utility model is implemented by the following technical scheme:

[0009] The utility model provides a structure of enhancing fluidization effect of pneumatic conveying, including the fluidization core that is arranged in the output pipe of air supplementing device, the air supplementing pipe that sets up in the one end of air supplementing device, the fluidization core is arranged in the frustum, and the circumferential side wall of fluidization core is fixedly connected with fluidization blade, and the thickness of fluidization blade gradually reduces from the one end of fluidization core size to the one end of fluidization core size, and fluidization blade is arranged obliquely, and the angle between fluidization blade and the axis of fluidization core is between any numerical value of 30 degrees to 45 degrees, and fluidization blade is recessed smoothly to the oblique direction with the center as the recess point, and fluidization blade is arranged as a whole in arc shape, and the fluidization blade is arranged in multiple, and multiple fluidization blades are evenly distributed along the circumferential side of fluidization core, and adjacent fluidization blades are parallel to each other, and the side of each fluidization blade away from fluidization core is fixedly connected in the output pipe by welding, and the axis of fluidization core is collinear with the axis of output pipe.

[0010] As the utility model prefers, the number of fluidization blades is between any numerical value of six to eleven.

[0011] As the utility model prefers, fluidization air ducts are arranged on the circumferential side of the fluidization core, and the fluidization air ducts are arranged in arc shape, and the bending direction of the fluidization air ducts is consistent with the recess direction of the fluidization blades.

[0012] As the utility model prefers, one fluidization air duct is arranged between each adjacent fluidization blade.

[0013] Beneficial effects:

[0014] The utility model has the beneficial effects that:

[0015] The shape characteristics of the fluidization core and the structure characteristics of the fluidization blades form a channel structure that is wide at the beginning and narrow at the end in the output pipe, and the recess and inclination characteristics of the fluidization blades generate a deflected arc-shaped flow channel in the axial direction of the output pipe. After the compressed gas passes through such a flow channel, it will generate rotation in the flow direction, thereby forming a rotational flow. And because the flow channel becomes narrower from the beginning, the flow rate of the gas remains unchanged, thereby increasing the flow rate of the gas per unit area within the same time, thereby increasing the flow rate of the gas. Thus, the same volume of compressed air can generate a greater disturbance effect on the running materials in the air pipe, improve the effect of single air supplementing work of the air supplementing device, increase the action length and action strength of a single air supplementing device, and further increase the layout interval of the air supplementing equipment, thereby reducing the number and air supplementing times of the air supplementing device, achieving the effects of reducing air supplementing times, reducing gas consumption, and reducing energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a structure schematic view of the top angle of the fluidization core and the fluidization blade.

[0018] Figure 2 It is a structure schematic view of the side angle of the fluidization core and the fluidization blade.

[0019] Figure 3 It is a structure schematic view of the three-dimensional structure of the fluidization core and the fluidization blade.

[0020] Figure 4 It is a structure schematic view of the present application in use state.

[0021] Figure 5 It is a cross-section structure schematic view of the output pipe when the present application is in use state.

[0022] Figure 6 It is a gas flow detection diagram in the ash conveying pipeline after the present application is used.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, fluidization core; 2, fluidization blade; 3, fluidization air duct; 4, air supplement device; 41, air supplement pipe. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] Embodiment 1

[0027] Reference Figures 1-6As shown, a structure for enhancing the fluidization effect of pneumatic conveying includes a fluidization core 1 arranged in an output pipe of a gas supplement device 4, a gas supplement pipe 41 arranged at one end of the gas supplement device 4, the fluidization core 1 is arranged in the form of a frustum, and the fluidization core 1 is fixedly connected with fluidization blades 2 on the circumferential side wall of the fluidization core 1, the thickness of the fluidization blades 2 gradually decreases from the end of the fluidization core 1 with smaller size to the end of the fluidization core 1 with larger size, the structure characteristics of the fluidization core 1 and the fluidization blades 2 arranged form a channel with a wide front and a narrow rear in the output pipe, which changes the flow of the gas sprayed from the output pipe, increases the pressure and flow rate of the gas sprayed from the output pipe, and makes the length of the action of a single gas supplement device 4 longer and the effect stronger, thereby reducing the number of gas supplement, reducing the gas consumption, and reducing the energy consumption.

[0028] The fluidization blades 2 are arranged in an inclined manner, and the included angle between the fluidization blades 2 and the axis of the fluidization core 1 is any value between 30 degrees and 45 degrees, preferably 35 degrees. The fluidization blades 2 are smoothly concave in the inclined direction with the center as the concave point, and the fluidization blades 2 are arranged in an arc shape as a whole; a plurality of fluidization blades 2 are arranged, and the plurality of fluidization blades 2 are uniformly distributed along the circumferential side surface of the fluidization core 1, and the number of the fluidization blades 2 is any value between six and eleven. Adjacent fluidization blades 2 are parallel to each other, and the side of each fluidization blade 2 away from the fluidization core 1 is fixedly connected in the output pipe by welding, and the axis of the fluidization core 1 is collinear with the axis of the output pipe. The circumferential side surface of the fluidization core 1 is provided with a fluidization air duct 3, and one fluidization air duct 3 is arranged between each adjacent fluidization blade 2, the fluidization air duct 3 is arranged in an arc shape, and the bending direction of the fluidization air duct 3 is consistent with the concave direction of the fluidization blade 2.

[0029] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples, and the changes, changes, additions or replacements made by ordinary skilled in the art within the scope of the present application should belong to the protection scope of the present application.

Claims

1. A structure for enhancing the fluidization effect of pneumatic conveying, characterized by: The application relates to a fluidizing core (1) arranged in an output pipe of a gas supplementing device (4), a gas supplementing pipe (41) arranged at one end of the gas supplementing device (4), wherein the fluidizing core (1) is arranged in a frustum shape, a fluidizing blade (2) is fixedly connected to the circumferential side wall of the fluidizing core (1), the thickness of the fluidizing blade (2) gradually decreases from the end of the fluidizing core (1) with a smaller size to the end of the fluidizing core (1) with a larger size, the fluidizing blade (2) is arranged in an inclined manner, the included angle between the fluidizing blade (2) and the axis of the fluidizing core (1) is any value between 30 degrees and 45 degrees, the fluidizing blade (2) is smoothly concave to the inclined direction with the center as a concave point, and the fluidizing blade (2) is arranged in an arc shape as a whole; a plurality of fluidizing blades (2) are arranged, the plurality of fluidizing blades (2) are uniformly distributed along the circumferential side of the fluidizing core (1), adjacent fluidizing blades (2) are parallel to each other, the side of each fluidizing blade (2) away from the fluidizing core (1) is fixedly connected in the output pipe through welding, and the axis of the fluidizing core (1) is collinear with the axis of the output pipe.

2. A structure to enhance the fluidization effect of pneumatic conveying according to claim 1, characterized in that: The number of the fluidizing blades (2) is any value between six and eleven.

3. A structure to enhance the fluidization effect of pneumatic conveying according to claim 2, characterized in that: A fluidizing air duct (3) is arranged on the circumferential side of the fluidizing core (1), the fluidizing air duct (3) is arranged in an arc shape, and the bending direction of the fluidizing air duct (3) is consistent with the concave direction of the fluidizing blade (2).

4. A structure to enhance the fluidization effect of pneumatic conveying according to claim 3, wherein: One fluidizing air duct (3) is arranged between each adjacent fluidizing blade (2).

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