Feeding and conveying device for preparing calcium aluminate powder

Abstract

The utility model discloses a feeding and conveying device for preparing calcium aluminate powder. The feeding and conveying device comprises a surge bin, a discharging channel, a discharger, an air supply assembly, an air supply pipe, a conveying channel and an exhaust pipe. The air supply assembly is connected with the air inlet end of the air supply pipe. The exhaust end of the air supply pipe is connected with the discharging channel and the conveying channel. The material conveying channel is composed of a first material conveying pipe, a second material conveying pipe and an elbow. One end of the conveying pipe I is connected with the exhaust end of the air supply pipe, and the other end of the conveying pipe I is connected with the feeding end of the elbow; a cavity is formed in the turning part of the elbow; the discharging end of the elbow is connected with a second conveying pipe, and the second conveying pipe is obliquely arranged relative to the vertical direction and connected with target equipment. And the exhaust pipe is communicated with the material conveying pipe II and is positioned above the elbow. Due to the fact that the cavity is formed in the elbow, abrasion to the elbow is relieved, feeding production efficiency is improved, the service life of the elbow is prolonged, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to calcium aluminate powder production technical field, specifically related to a kind of preparation calcium aluminate powder's feeding conveyor. BACKGROUND

[0002] Calcium aluminate powder is a kind of green chemical product, its main raw material is scientific proportioning limestone and alumina, then grinding equipment is used to grind homogenization, powder is transported to rotary kiln cylinder and is calcined.Currently, factory saves production cost, and raw material grinding, crushing process is omitted, and one of calcium aluminate powder raw material, alumina (such as aluminum ash) is directly in powder form to material bin, for the transportation of powder, pneumatic conveying is used, but due to the high hardness of alumina powder, in the process of feeding and conveying, it is easy to cause abrasion to pipeline, especially for the pipeline at the turning, powder is hit to the inner wall of pipeline due to centrifugal force and inertia, causing abrasion, leading to powder leakage at elbow, and reducing the service life of elbow pipeline, ultimately reducing the efficiency of pneumatic conveying, and increasing production cost. SUMMARY

[0003] In view of the above defects, the utility model aims at providing a kind of preparation calcium aluminate powder's feeding conveyor.The device can improve the problem of short service life of elbow pipeline in the process of calcium aluminate raw material feeding and conveying.

[0004] To achieve the above technical purpose, the following technical scheme is adopted:

[0005] A kind of preparation calcium aluminate powder's feeding conveyor, including buffer bin, discharge channel and unloader, buffer bin lower part is connected discharge channel, and unloader is arranged in discharge channel;Further comprising:

[0006] Air supply component, the air supply component provides compressed air for conveying powder;

[0007] Air supply pipe, the air supply pipe is equipped with intake end and exhaust end, the intake end is connected with air supply component, and the exhaust end is connected with discharge channel and material conveying channel respectively;

[0008] Material conveying channel, the material conveying channel is composed of material conveying pipe one, material conveying pipe two and elbow;Material conveying pipe one is horizontally arranged, one end is connected with the exhaust end of air supply pipe, and the other end is connected with the feed end of elbow;Cavity is arranged at the turning of elbow;The discharge end of elbow is connected with material conveying pipe two, and material conveying pipe two is inclinedly arranged relative to vertical direction and is connected with target equipment;Exhaust pipe is arranged above the elbow connected with material conveying pipe two;

[0009] Exhaust pipe, the exhaust pipe is connected with material conveying pipe two, and first plug valve is arranged on the exhaust pipe.

[0010] Further, the cavity is elliptical, located at the lower side of the elbow bend, and communicates with the feeding end and the discharging end of the elbow.

[0011] Preferably, the cavity is sleeved outside the elbow, and forms a double sleeve structure with the elbow.

[0012] Further, the cavity is filled with wear-resistant particles.

[0013] Further, the discharging channel is a square-section pipeline, and a second plug valve is arranged above the discharger in the discharging channel.

[0014] Further, the discharger is a star-shaped discharger.

[0015] Further, the air supply assembly is a Roots blower assembly.

[0016] Further, the material conveying pipe is inclined to the horizontal direction by an angle not greater than 45 degrees.

[0017] Further, the elbow is made of a metal ceramic composite material.

[0018] The present application has the following advantages:

[0019] Compared with the prior art, the present application sets a cavity at the elbow of the material conveying pipe, which protects the elbow and reduces wear. The cavity communicates with the elbow pipe to increase the flow cross section of the elbow pipe, and intentionally causes the powder entering the elbow to stagnate and collide with each other to prevent impact and wear on the inner wall of the elbow pipe. The cavity can also be sleeved outside the elbow without communicating with the inner wall of the elbow, and wear-resistant particles are filled in the cavity to protect the pipe. When the wear-resistant particles are worn out after long-term use, the cavity communicates with the pipe to increase the flow cross section, and the powder rubs against each other to avoid wear on the elbow pipe. In addition, an exhaust pipe communicating with the material conveying pipe is arranged above the elbow pipe. When the powder accumulates at the elbow, the conveying resistance increases, causing the air pressure at this position to be too high and not decreasing for a period of time. When the plug valve on the exhaust pipe is opened, the air pressure is released, the accumulated powder is loosened, and the accumulation of the powder is avoided. The present application has a simple structure, low modification and maintenance costs, avoids dust when using pneumatic conveying to load, solves the problem of easy wear of the pipe, effectively improves the loading production efficiency, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be described below with reference to the drawings.

[0021] ATTACHED Figure 1 is a schematic structural view of a loading and conveying device for preparing calcium aluminate powder.

[0022] Figure 1 is a schematic view of a bend structure according to an embodiment of the present application. Figure 2 Figure 1 is a schematic view of a bend structure according to an embodiment of the present application.

[0023] Figure 1 is a schematic view of a bend structure according to an embodiment of the present application. Figure 3 Figure 1 is a schematic view of a bend structure according to an embodiment of the present application.

[0024] Figure 1 is a schematic view of a bend structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment 1

[0026] As shown in Figure 1 The present application discloses a kind of feeding conveying device of calcium aluminate powder preparation, including buffer bin 1, discharge passage 2, air supply component 3, air supply pipe 4, feed passage 5 and exhaust pipe 6;

[0027] The buffer bin 1 is the powder material after feeding bin, the buffer bin 1 lower part is connected discharge passage 2, the discharge passage 2 is the square section pipe, discharge passage 2 is equipped with unloader 7 and second valve 9, the second valve 9 is located in the upper of unloader 7, the unloader 7 is star unloader, the second valve 9 controls the opening and closing of discharge passage 2, the unloader 7 makes the flow of powder material falling controllable and has gas locking effect.

[0028] The air supply component 3 selects Roots blower component, provides clean compressed gas for powder conveying, utilizes gas to drive powder transportation, air supply component 3 is connected air supply pipe 4 intake end 41, air supply pipe 4 exhaust end 42 is connected with discharge passage 2 and feed passage 5 respectively;

[0029] The material conveying channel 5 is connected by the material conveying pipe one 51, the elbow 52 and the material conveying pipe two 53 in sequence; the material conveying pipe one 51 is horizontally arranged, one end of which is connected with the exhaust end 42 of the air supply pipe 4, and the other end is connected with the feeding end 521 of the elbow 52; the turning part of the elbow 52 is provided with a cavity 522, which is located at the lower side of the inner wall of the elbow 52 and is in the shape of an ellipse, and is connected with the feeding end 521 and the discharging end 523 of the elbow 52; the discharging end 523 of the elbow 52 is connected with the material conveying pipe two 53, which is inclined to the powder conveying direction and has an angle of not more than 45° with the horizontal direction, and is finally connected with the target equipment; the elbow 52 is made of a metal ceramic composite material, which can effectively reduce the abrasion of the elbow 52 pipeline;

[0030] The exhaust pipe 6 is arranged on the material conveying pipe two 53 above the elbow 52, one end of which is connected with the material conveying pipe two 53, and the other end is connected with air; the first valve 8 is arranged on the exhaust pipe 6, which is used to control the opening and closing of the exhaust pipe 6.

[0031] The working principle of the feeding and conveying device for preparing calcium aluminate powder is as follows:

[0032] The powder (aluminum ash) is transported to the buffer bin 1, and the powder is packaged and moved to the upper side of the buffer bin 1 by the row of hangers, and then the powder is poured, the powder falls by its own gravity, passes through the second valve 9 and the discharger 7 in the discharging channel 2, so that the discharging is continuous and uniform; the air supply assembly 3 is opened, so that the gas drives the powder to be conveyed to the target equipment; the oval cavity 522 is arranged at the elbow 52, which is connected with the feeding end 521 and the discharging end 523 of the elbow 52, expands the flow cross section of the elbow 52, intentionally makes the powder entering the elbow 52 stagnate, and makes the powder particles collide with each other, so as to prevent the impact and abrasion of the inner wall of the elbow 52 pipeline; the exhaust pipe 6 is connected on the material conveying pipe two 53, the first valve 8 is arranged on the exhaust pipe 6 to control the opening and closing of the exhaust pipe 6, after the powder conveying is completed, the first valve 8 on the exhaust pipe 6 is opened, the high-pressure gas is discharged from the exhaust pipe 6, and then the first plug valve 8 is closed, the change of gas pressure impacts the accumulated powder, so as to loosen the powder and avoid blockage. Example two

[0033] The difference between the embodiment and the embodiment one is that the cavity 522 of the elbow 52 is arranged, the cavity 522 is sleeved on the outer side of the elbow 52, and a double sleeve structure is formed with the elbow 52, and wear-resistant particles are filled in the cavity 522, so that the elbow 52 is further protected when the powder impacts the inner wall of the elbow 52. When the elbow 52 is used for a period of time, the powder penetrates the inner wall of the elbow 52 and enters the cavity 522 to rub against the wear-resistant particles, so that the wear of the side wall of the cavity 522 is reduced. When the wear-resistant particles are finally consumed, the powder begins to fill the cavity 522, so that the flow cross section of the elbow 52 is expanded, the mutual friction between the powder particles is reduced, the impact and wear of the side wall of the cavity 522 are reduced, the service life of the elbow 52 is prolonged, and the production cost is reduced.

[0034] Other details of the utility model are conventional technologies known by those skilled in the art.

[0035] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. of the above embodiments according to the technical essence of the utility model falls within the protection scope of the utility model.

Claims

1. A feeding and conveying device for preparing calcium aluminate powder, comprising a buffer bin (1), a discharging channel (2) and a discharger (7), the lower part of the buffer bin (1) is connected with the discharging channel (2), and the discharger (7) is arranged in the discharging channel (2); characterized in that: Also comprising: ​ a blowing assembly (3) providing compressed air for conveying powder; a blowing pipe (4) provided with an air inlet end (41) and an air outlet end (42), the air inlet end (41) being connected with the blowing assembly (3), and the air outlet end (42) being connected with the discharge channel (2) and the conveying channel (5) respectively; a conveying channel (5) composed of a conveying pipe one (51), an elbow (52) and a conveying pipe two (53); the conveying pipe one (51) is horizontally arranged, one end of which is connected with the air outlet end (42) of the blowing pipe (4), and the other end of which is connected with an air inlet end (521) of the elbow (52); a cavity (522) is arranged at the turning part of the elbow (52); an air outlet end (523) of the elbow (52) is connected with the conveying pipe two (53), which is arranged to be inclined relative to the vertical direction and connected with a target device; an air outlet pipe (6) is arranged above the conveying pipe two (53) connected with the elbow (52); the air outlet pipe (6) is connected with the conveying pipe two (53), and a first valve (8) is arranged on the air outlet pipe (6).

2. The feeding and conveying device for preparing calcium aluminate powder according to claim 1, characterized in that: The cavity (522) is elliptical, located at the lower side of the turning part of the elbow (52), and communicates with the air inlet end (521) and the air outlet end (523) of the elbow (52).

3. The feeding and conveying device for preparing calcium aluminate powder according to claim 1, characterized in that: The cavity (522) is arranged outside the elbow (52) and forms a double sleeve pipe structure with the elbow (52).

4. The feeding and conveying device for preparing calcium aluminate powder according to claim 3, characterized in that: The cavity (522) is filled with wear-resistant particles.

5. The feeding and conveying device for preparing calcium aluminate powder according to claim 1, characterized in that: The discharge channel (2) is a square-section pipe, and a second valve (9) is arranged above the discharger (7) in the discharge channel (2).

6. The feeding and conveying device for preparing calcium aluminate powder according to claim 5, characterized in that: The discharger (7) is a star-shaped discharger.

7. The feeding and conveying device for preparing calcium aluminate powder according to claim 6, characterized in that: The blowing assembly (3) is a Roots blower assembly.

8. The feeding and conveying device for preparing calcium aluminate powder according to claim 7, characterized in that: The conveying pipe two (53) is inclined to the powder conveying direction, and the included angle with the horizontal direction is not greater than 45°.

9. The feeding and conveying device for preparing calcium aluminate powder according to any one of claims 1-8, characterized in that: The elbow (52) is made of a metal ceramic composite material.

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