Pneumatic conveying assisting equipment for blanking pipe of fluidized bed furnace

Abstract

The utility model relates to a pneumatic conveying power assisting device for a blanking pipe of a fluidized bed furnace, which belongs to the technical field of the blanking pipe of the fluidized bed furnace and comprises a furnace wall of the fluidized bed furnace and the blanking pipe fixedly connected to one side of the furnace wall of the fluidized bed furnace and extending into the furnace wall of the fluidized bed furnace, and the pneumatic conveying power assisting device is arranged on one side, close to the blanking pipe, of the furnace wall of the fluidized bed furnace. The air supply assisting device comprises a second air pipe fixedly connected to the side, close to the discharging pipe, of the furnace wall of the fluidized bed furnace, and a first high-pressure air supply pipe is arranged outside the second air pipe. According to the air supply assisting equipment for the blanking pipe of the fluidized bed furnace, high-pressure air is conveniently conveyed into a second air pipe by arranging a high-pressure air inlet adjusting valve and a first high-pressure air supply pipe, and then the high-pressure air can be sprayed out from a high-pressure air guide opening under the action of a guide plate by arranging the high-pressure air guide opening and the guide plate; furthermore, the material dispersing effect can be achieved, adhesion and accumulation of the materials are avoided, and meanwhile the material falling position can be close to the center in the fluidized bed furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to a material falling pipe technology field of boiling furnace, concretely is material falling pipe air conveying booster equipment of boiling furnace. BACKGROUND

[0002] The material falling pipe air conveying booster equipment is mainly used for assisting the conveying of material by air force during the material falling process of the boiling furnace. When the boiling furnace is running, the material needs to enter the reaction area in the furnace from the material falling pipe. However, the material may not fall smoothly due to viscosity, accumulation and other reasons. The air conveying booster equipment can provide additional power to make the material smoothly enter the boiling furnace along the material falling pipe, thereby ensuring the continuous and stable operation of the boiling furnace.

[0003] The angle of the original material falling position downcomer is about 70°, and the material naturally falls to the furnace bottom within a range of about 1M. The wind blows the raw material, the particle size of the raw material is uneven, and the large particle material is difficult to uniformly boil, thereby forming a desulfurization process completed by boiling combustion. However, the desulfurization effect is not good, and the secondary raw material accumulation at the downcomer outlet causes the phenomenon of dead furnace. By designing and manufacturing a secondary air conveying device at the lower part of the material falling end of the downcomer, the raw material passing through the downcomer is blown away under the action of the wind force of the secondary variable pressure air conveying device, so that the raw material is better blown away at the material falling outlet end. At the same time, the material falling position is also displaced to the center position of the furnace, so that the raw material is more dispersed after entering the furnace and is closer to the center position of the furnace, thereby effectively improving the phenomenon of uneven accumulation of furnace material.

[0004] The existing boiling furnace cannot meet the production requirements because the material may not fall smoothly due to viscosity, accumulation and other reasons during the material falling process. Therefore, the material falling pipe air conveying booster equipment of the boiling furnace is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a material falling pipe air conveying booster equipment of the boiling furnace, which has the advantages of preventing sticking and blocking during material falling, and solves the problem that the material may not fall smoothly due to viscosity, accumulation and other reasons, and cannot meet the production requirements.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a material falling pipe air conveying booster equipment of a boiling furnace, comprising a boiling furnace and a material falling pipe fixedly connected to one side of the boiling furnace and extending into the interior thereof, and a wind conveying booster equipment arranged on the side of the boiling furnace close to the material falling pipe.

[0007] The wind conveying booster equipment comprises a second air pipe fixedly connected to the side of the boiling furnace close to the material falling pipe, a first air pipe arranged outside the second air pipe, a sleeve flange fixedly connected to one end of the first air pipe away from the boiling furnace, a first high-pressure air conveying pipe fixedly connected to one end of the first air pipe away from the boiling furnace, and a high-pressure air inlet adjusting valve fixedly installed at the top of the first high-pressure air conveying pipe.

[0008] Further, the top of the second air pipe is provided with a high-pressure air guide opening in communication with the inside thereof, and a high-temperature resistant filler is arranged between the second air pipe and the first air pipe.

[0009] Further, the first air pipe and the first high-pressure air supply air pipe are installed through a sleeve flange.

[0010] Further, the inner diameter of the first air pipe is the same as that of the sleeve flange, and the inner diameter of the second air pipe is the same as that of the high-pressure air guide opening.

[0011] Further, the end of the first high-pressure air supply air pipe away from the boiling furnace is provided with a shovel adjusting handle, one side of the shovel adjusting handle is fixedly connected with a shovel rod extending into the inside of the second air pipe, and the end of the shovel rod away from the shovel adjusting handle is fixedly connected with a duckbill-shaped shovel.

[0012] Further, the inside of the second air pipe is provided with a guide plate, and the end of the second air pipe inside the boiling furnace is fixedly connected with an air pipe high-temperature resistant corrosion-resistant plug.

[0013] Further, the duckbill-shaped shovel is in contact with the guide plate, the end of the first high-pressure air supply air pipe close to the shovel adjusting handle is fixedly connected with a fixed flange, and the fixed flange is threadedly connected with the shovel rod.

[0014] Compared with the prior art, the boiling furnace blanking pipe air supply assisting device has the following beneficial effects:

[0015] 1. The boiling furnace blanking pipe air supply assisting device, by setting the high-pressure air inlet adjusting valve and the first high-pressure air supply air pipe, the high-pressure air can be conveniently delivered to the inside of the second air pipe, and by setting the high-pressure air guide opening and the guide plate, the high-pressure air can be sprayed from the high-pressure air guide opening under the action of the guide plate, thereby the dispersion effect on the material can be realized, the material adhesion and accumulation can be avoided, and the material blanking position can be made close to the center of the boiling furnace.

[0016] 2. The boiling furnace blanking pipe air supply assisting device, by setting the shovel rod and the duckbill-shaped shovel, and by rotating the shovel adjusting handle, the left and right movement of the duckbill-shaped shovel can be realized, thereby the high-pressure air guide opening on the second air pipe can be conveniently cleaned, the clogging of the high-pressure air guide opening can be avoided, and in the process of the left and right movement of the duckbill-shaped shovel, the secondary air supply effect can be realized, thereby the air pressure fine adjustment can be conveniently realized, and the problem that the material may not be smoothly blanked due to the viscosity and accumulation and cannot meet the production demand can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional view of the utility model structure;

[0018] Figure 2 The utility model discloses Figure 1 The utility model discloses

[0019] In the figure: 1 (feed pipe);2 (boiling furnace wall);3 (protective sleeve);4 (high pressure air inlet regulating valve);5 (first high pressure air supply pipe);6 (shovel handle);7 (second air pipe);8 (sleeve flange);9 (high temperature resistant filling material);10 (shovel rod);11 (duckbill type shovel);12 (guide plate);13 (air pipe high temperature resistant corrosion resistant plug);14 (high pressure air guide port). DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0021] Embodiment one:

[0022] Please refer to Figure 1 The boiling furnace blanking pipe air supply assisting device in the embodiment comprises a feed pipe 1 fixedly connected to one side of a boiling furnace wall 2 and extending to the inside of the boiling furnace wall 2, and an air supply assisting device arranged on the inner wall of the boiling furnace close to the lower side of the feed pipe 2. The air supply assisting device comprises a protective sleeve 3 fixedly connected to the boiling furnace wall 2 close to the lower side of the feed pipe 1. The outside of a second air pipe 7 is provided with a first high pressure air supply pipe 5. The end of the second air pipe 7 away from the boiling furnace wall 2 is fixedly connected with the flange of the protective sleeve 3. The end of the second air pipe 7 away from the boiling furnace wall 2 is fixedly connected with the first high pressure air supply pipe 5. The top of the first high pressure air supply pipe 5 is fixedly installed with a high pressure air inlet regulating valve 4.

[0023] The top of the second air pipe 7 is provided with a high pressure air guide port 14 in communication with the inside of the second air pipe 7. The high temperature resistant filling material 9 is arranged between the second air pipe 7 and the protective sleeve 3. The first air pipe 5 and the first high pressure air supply pipe 7 are installed through the sleeve flange 8.

[0024] It should be noted that the inner diameter of the first air pipe 5 is the same as the inner diameter of the sleeve flange 8. By arranging the high pressure air inlet regulating valve 4 and the first high pressure air supply pipe 5, the high pressure air can be conveniently delivered to the inside of the second air pipe 7 through the first high pressure air supply pipe 5. By arranging the high pressure air guide port 14 and the guide plate 12, the high pressure air can be sprayed out from the high pressure air guide port 14 under the action of the guide plate 12, thereby the dispersion effect of the material can be realized, the material can be prevented from being adhered and accumulated, and meanwhile the blanking position of the material can be close to the center of the boiling furnace.

[0025] In the embodiment, the inside of the second air pipe 7 is provided with a guide plate 12, and one end of the second air pipe 7 located inside the boiling furnace is fixedly connected with an air pipe high-temperature-resistant corrosion-resistant plug 13.

[0026] The guide plate 12 is located on the left side of the high-pressure air guide port 14, the included angle between the guide plate 12 and the top of the second air pipe 7 is 45 degrees, and the guide plate 12 is in the shape of an ellipse.

[0027] It should be noted that the high-pressure air is controlled by the valve to adjust the required air pressure of the air-assisted wind delivery device, and the air is sprayed out along the 45° angle through the duckbill-shaped pipe cutout of the air outlet of the front end of the heat-resistant stainless steel pipe to realize the delivery of the raw materials, so that the displacement of the raw material falling area is increased, the boiling in the furnace is effectively improved, and the sediment is reduced. The internal design of the cleaning device shovel is designed and installed to prevent the outlet of the air pipe from being blocked under special circumstances such as shutdown maintenance or stewing furnace. It not only can achieve the effect of secondary air supply, but also can realize the fine adjustment of air pressure by cooperating with the air port. After the operation, the running data collection of the furnace charge, the furnace temperature, the furnace pressure and the furnace observation are closely tracked, the sediment in the furnace is eliminated, the furnace temperature and the furnace pressure are stable, the raw material boiling effect in the furnace is obvious, the production capacity is increased by 10%, and the driving rate is increased by 2%.

[0028] Embodiment two:

[0029] Please refer to Figure 1 On the basis of embodiment one, the shovel adjusting handle 6 is arranged at one end of the first high-pressure air supply air pipe 5 away from the furnace wall 2 of the boiling furnace, one side of the shovel adjusting handle 6 is fixedly connected with the shovel rod 10 extending into the inside of the second air pipe 7, and the end of the shovel rod 10 away from the shovel adjusting handle 6 is fixedly connected with the duckbill-shaped shovel 11.

[0030] In the embodiment, the duckbill-shaped shovel 11 is in contact with the guide plate 12, one end of the first high-pressure air supply air pipe 5 close to the shovel adjusting handle 6 is fixedly connected with a fixed flange, the fixed flange is threadedly connected with the shovel rod 10, the duckbill-shaped shovel 11 is made of 2mmx150mm high-temperature-resistant stainless steel, and the connection mode between the duckbill-shaped shovel 11 and the shovel rod 10 is welding.

[0031] By adopting the above technical scheme, the forward movement of the duckbill-shaped shovel 11 can be realized by arranging the shovel rod 10 and the duckbill-shaped shovel 11 and rotating the shovel adjusting handle 6, so that the high-pressure air guide port 14 on the second air pipe 7 can be conveniently cleaned to avoid being blocked, and the effect of secondary air supply can be realized during the left and right movement of the duckbill-shaped shovel 11, so that the fine adjustment of air pressure can be conveniently realized.

[0032] The working principle of the above embodiment is as follows:

[0033] First, the staff starts the high pressure air adjusting valve 4, carries out the air supply treatment to the inside of the second air pipe 7, in the process of air supply, the staff can manually adjust the high pressure air adjusting valve 4 and realize the effect of adjusting the air pressure size, then the staff can deliver the material to the fluidized bed furnace through the feeding pipe 1, at this time the material will be blown away by the wind, and the material falling point will be close to the center position inside the fluidized bed furnace, when the high pressure air guide port 14 on the second air pipe 7 is blocked, the duckbill type spade 11 is driven by rotating the spade adjusting handle 6, moves forward and backward, and cleans the high pressure air guide port 14, at the same time, the duckbill type spade 11 can be moved forward and backward according to the actual situation during the air supply process, to realize the fine adjustment of air pressure.

[0034] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, no element discussed in the above description of a particular embodiment of the application is intended to be discretionary or superfluous unless specifically so stated or otherwise entirely apparent from the preceding discussion.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace, and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A material feeding and air-assisted equipment for a drop tube of a fluidized bed furnace, comprising a furnace wall (2) of the fluidized bed furnace and a feeding pipe (1) fixedly connected to one side of the furnace wall (2) and extending into the interior of the furnace wall (2), characterized in that: The side of the fluidized bed furnace wall (2) close to the feeding pipe (1) is provided with a pneumatic assisting device; The pneumatic assisting device comprises a second air pipe (7) fixedly connected to the side of the fluidized bed furnace wall (2) close to the feeding pipe (1), the outside of the second air pipe (7) is provided with a protective sleeve (3), one end of the protective sleeve (3) is fixedly connected with a sleeve flange (8), one end of the protective sleeve (3) is fixedly connected with a first high-pressure air supply air pipe (5), and the top of the first high-pressure air supply air pipe (5) is fixedly installed with a high-pressure air inlet adjusting valve (4).

2. The fluidized bed material drop tube pneumatic assist apparatus of claim 1, wherein: The top of the second air pipe (7) is provided with a high-pressure air guide opening (14) in communication with the inside of the second air pipe (7), and a high-temperature resistant filling material (9) is arranged between the second air pipe (7) and the protective sleeve (3).

3. The fluidized bed material drop tube pneumatic assist apparatus of claim 1, wherein: The second air pipe (7) and the protective sleeve (3) are installed through the sleeve flange (8).

4. The pneumatic assisting device for the drop tube of a fluidized bed furnace according to claim 2, characterized in that: The inner diameter of the protective sleeve (3) is different from that of the sleeve flange (8), and the inner diameter of the second air pipe (7) is different from that of the high-pressure air guide opening (14).

5. The fluidized bed material drop tube pneumatic assist apparatus of claim 1, wherein: The end of the first high-pressure air supply air pipe (5) away from the fluidized bed furnace wall (2) is provided with a shovel adjusting handle (6), one side of the shovel adjusting handle (6) is fixedly connected with a shovel rod (10) extending into the inside of the second air pipe (7), and the end of the shovel rod (10) away from the shovel adjusting handle (6) is fixedly connected with a duckbill-shaped shovel (11).

6. The fluidized bed material drop tube pneumatic assist apparatus of claim 1, wherein: The inside of the second air pipe (7) is provided with a guide plate (12), and one end of the second air pipe (7) located inside the fluidized bed furnace wall (2) is fixedly connected with an air pipe high-temperature corrosion-resistant plug (13).

7. The pneumatic assisting device for the drop tube of a fluidized bed furnace according to claim 5, characterized in that: The duckbill-shaped shovel (11) is in contact with the guide plate (12), one end of the first high-pressure air supply air pipe (5) close to the shovel adjusting handle (6) is fixedly connected with a fixed flange, and the fixed flange is threadedly connected with the shovel rod (10).

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