Fluidized bed furnace

Abstract

The utility model discloses a fluidized bed furnace, and belongs to the technical field of chemical equipment. According to the utility model, the problem of how to thoroughly discharge materials adhered to the side wall of the fluidized bed furnace from the slag discharge pipe in the prior art is solved. The device comprises a shell arranged on the side wall of an air chamber of a fluidized bed furnace body, the shell and the inner side wall of the air chamber jointly form a containing cavity for containing a knocking assembly, and an opening is formed in the side, close to a slag discharging pipe, of the containing cavity; the knocking assembly comprises an elastic piece arranged on the side, away from the opening, of the containing cavity, the elastic piece is connected with a knocking block, the knocking block is connected with a traction piece, one end of the traction piece penetrates through the slag discharging pipe and then is arranged outside the fluidized bed furnace body, and a plurality of protruding blocks are arranged on the side, close to the inner side wall of the air chamber, of the containing cavity. In the pulling process, the knocking blocks continuously knock the inner side wall of the air chamber, so that materials adhered to the inner wall of the fluidized bed furnace vibrate and fall off, knocking of a plurality of parts is achieved in the pulling process, and the material discharging efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical equipment, concretely relates to a fluidized bed furnace. BACKGROUND

[0002] Fluidized heating furnace refers to a kind of coke preparation equipment for heating material with fluidization technology.It is also called fluidized bed heating furnace.The equipment can also be used to dry distillation of high volatile non-sticky or weakly cohesive material, to prepare semi-travel or hot carbon powder, as raw material and solid heat carrier of hot-pressed coke process.Fluidized heating furnace (abbreviation fluidized bed furnace) has outer combustion and inner heating type and inner combustion and inner heating type.The former needs heat (heat source) from hot waste gas of combustion furnace combustion;The latter is widely applied, and the heat needed is obtained by burning air into the furnace and a small amount of coal powder to produce volatile matter.

[0003] The boiling section of the fluidized bed furnace is a conical bed, and a distribution plate is arranged at the bottom of the bed, and side hole type air caps are uniformly arranged on the plate according to concentric circles, and a slag discharge hole is arranged at the center of the distribution plate to discharge larger particles of sediment, and anthracite powder is uniformly fed into the furnace through three feeding pipes by a disc feeder at the top of the furnace.The expansion section is cylindrical.Air is blown into the air chamber by a blower, and is uniformly introduced into the boiling section through the air cap, so that the anthracite powder is boiled and burned and heated to a specified temperature, and is discharged into the hot material bin through the overflow port.Fine coal dust is carried out from the top of the furnace with waste gas, and is also introduced into the hot material bin after being separated by a cyclone dust collector.Heated waste gas after dust removal is discharged into the atmosphere through washing.Sediment and sediment are periodically discharged through the slag discharge pipe at the bottom of the air chamber.

[0004] However, the sediment and sediment are easily adsorbed on the inner wall of the fluidized bed furnace, so that the sediment and sediment are difficult to be discharged more completely, and the air cap may be blocked for a long time, affecting the normal use of the fluidized bed furnace. UTILITY MODEL CONTENTS

[0005] In view of the problem of how to more completely discharge the material adhered to the side wall of the fluidized bed furnace from the slag discharge pipe in the prior art, the utility model provides a fluidized bed furnace.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A fluidized bed furnace, which comprises a shell arranged on the side wall of the air chamber of the fluidized bed furnace body, the shell and the inner side wall of the air chamber jointly form a containing cavity containing a knocking assembly, and an opening is arranged on one side of the containing cavity close to the slag discharge pipe;The knocking assembly comprises an elastic member arranged on the side of the containing cavity away from the opening, the elastic member is connected with a knocking block, the knocking block is connected with a pulling member, one end of the pulling member is arranged outside the fluidized bed furnace body after penetrating through the slag discharge pipe, and a plurality of protrusions are arranged on the side of the containing cavity close to the inner side wall of the air chamber.

[0008] According to the technical scheme, the furnace body of the boiling furnace is a steel shell and is lined with refractory bricks, so that a large knocking force is required to transmit the vibration to the inner layer of the boiling furnace if the boiling furnace is knocked from the outside to vibrate the material adhered to the inner wall of the boiling furnace to drop into the slag discharge pipe, in order to solve the problem, the knocking assembly is directly arranged on the inner wall of the air chamber, and the user only needs to pull the pulling piece from the outside, the pulling piece passes through the height difference of the protrusions, so that the knocking block continuously knocks the inner side wall of the air chamber during the pulling process, thereby vibrating the material adhered to the inner wall of the boiling furnace to drop, and the knocking of multiple positions is also realized during the pulling process, thereby effectively improving the material discharge efficiency.

[0009] Preferably, the pulling piece comprises a refractory rope connected with the knocking block, and the refractory rope passes out of the through hole on the slag discharge pipe to the outside of the boiling furnace body.

[0010] According to the technical scheme, the opening and closing valve is arranged on the slag discharge pipe, the through hole with a size matched with the refractory rope is arranged on the slag discharge pipe above the opening and closing valve, one end of the refractory rope is connected with the knocking block, and the other end passes through the through hole, so that the operator can pull one end of the refractory rope from the outside, thereby making the knocking block pass through each protrusion in turn, and the inner wall of the boiling furnace is knocked multiple times.

[0011] Preferably, one end of the refractory rope arranged outside the boiling furnace body is provided with a handle.

[0012] According to the technical scheme, the operator can pull the refractory rope through the handle, and the handle with a larger size than the through hole can effectively prevent the refractory rope from retracting into the boiling furnace.

[0013] Preferably, the plurality of protrusions are uniformly arranged in a column along the slope surface of the inner side wall of the air chamber.

[0014] According to the technical scheme, the air chamber is funnel-shaped, the protrusions are arranged on the inner side wall of the air chamber, and are uniformly arranged in a column along the slope surface of the inner wall of the air chamber, so that the knocking block passes through each protrusion in turn during movement.

[0015] Preferably, the protrusions are provided with slope structures on the side close to the opening and the side close to the elastic piece.

[0016] According to the technical scheme, the slope structures make the knocking block smoothly reach the top surface of the protrusion during sliding, and then smoothly reach the gap between the two protrusions from the top surface, thereby smoothly knocking the inner wall of the boiling furnace.

[0017] Preferably, the knocking block is in a spherical structure.

[0018] Adopt this technical scheme, the knocking block is spherical shape, the surface is smooth, make it can slide to the convex block smoothly.

[0019] As preferred, the elastic member is a spring, and the spring has a spring force greater than the weight of the knocking block.

[0020] Adopt this technical scheme, in the absence of pulling force, the knocking block can drive the knocking block to reset to the uppermost convex block above under the action of the reset force of the elastic member, facilitate next time to knock.

[0021] As preferred, the interval between the two adjacent convex blocks is greater than the size of the knocking block.

[0022] Adopt this technical scheme, the interval between the two adjacent convex blocks is greater than the size of the knocking block, can make the knocking block smoothly enter between two convex blocks, thereby forming the knocking.

[0023] In summary, since the above technical scheme is adopted, the beneficial effects of the utility model are:

[0024] The utility model discloses a knocking assembly is arranged on the inner wall of the wind chamber directly, and the use only needs to pull the pulling member from outside, and the pulling member passes the height difference of the convex block, so that the knocking block knocks the inner side wall of the wind chamber constantly in the process of pulling, thereby making the material adhered on the inner wall of the boiling furnace vibrate and drop, and the knocking of multiple positions is also realized in the process of pulling, and the efficiency of material discharge is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be explained through example and the mode of referring to the drawings, wherein:

[0026] Figure 1 It is the structural schematic diagram of the utility model;

[0027] Figure 2 It is Figure 1 The partial close-up view of A in Fig.

[0028] Figure 3 It is the structural schematic diagram of the convex block in the utility model;

[0029] Wherein: 1-boiling furnace body, 2-housing, 3-elastic member, 4-knocking block, 5-convex block, 6-refractory rope, 7-grip, 8-via hole, 9-wind chamber. DETAILED DESCRIPTION

[0030] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0031] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] The embodiments of the present application will be described below in conjunction with Figures 1-3 The utility model will be described in detail.

[0033] A kind of fluidized bed furnace, including fluidized bed furnace body 1, including the shell 2 being arranged on the wind chamber 9 side wall of fluidized bed furnace body 1, the shell 2 is formed with the inside wall of wind chamber 9 together and forms the containing cavity containing knocking assembly, in the embodiment, the shell is made of high-temperature resistant material, for example, it can also be built by refractory brick, in other embodiments, it can also be made of 316 stainless steel, it is formed with the inside wall of wind chamber 9 together and forms straight rectangular containing cavity, the height of containing cavity should be greater than the total height of bump 5 and knocking block 4 at least 0.5 cm, to ensure that knocking block 4 can be smoothly slid onto bump 5;The side of containing cavity close to the slag discharge pipe is provided with opening, and the opening is used to make refractory rope 6 extend;The knocking assembly includes elastic member 3 being arranged on the side of containing cavity away from the opening, in the embodiment, the elastic member 3 is high-temperature resistant spring, for example, it can be made of 316 stainless steel spring, one end of elastic member 3 is fixedly connected on the top of containing cavity, the other end is fixedly connected with knocking block 4, and the knocking block 4 also needs to have high-temperature resistant characteristics, and has enough weight to ensure that enough knocking force is generated, and the specific weight can be set as required according to the size of fluidized bed furnace body 1, in order to take into account its mass and high-temperature resistant, resistant to knocking characteristics, it can be made of multi-layer structure, such as the inside is heavy refractory brick, and the outside is wrapped with a layer of 316 stainless steel layer;Knocking block 4 is connected with pulling member, one end of the pulling member is arranged outside fluidized bed furnace body 1 after passing through the slag discharge pipe, and the side of containing cavity close to the inside wall of wind chamber 9 is provided with a plurality of bumps 5.In the embodiment, the spacing between adjacent two bumps 5 is greater than the size of the knocking block 4, as shown in Figure 2 A plurality of the bumps 5 are uniformly arranged in a line along the slope surface of the inside wall of wind chamber 9, and the bump 5 is arranged on the sliding path of the knocking block 4, under the action of gravity, the knocking block 4 is in contact with the side wall provided with the bump 5, then after pulling the refractory rope 9, the knocking block 4 can pass through each bump 5 in turn;And the height of bump 5 is set as required according to the required knocking force, the weight and size of the knocking block, to ensure that enough knocking force can be generated. The bump 5 also needs to be made of high-temperature resistant and knocking resistant material, such as it can be made of 316 stainless steel block, or it can be a multi-layer structure, such as the inside is refractory brick, and the outside is wrapped with a layer of 316 stainless steel layer.

[0034] It should be noted that the fluidized bed furnace body 1 and the fluidized bed furnace structure in the prior art are the same, the furnace body is steel shell, and the lining is refractory brick, the lower part of the boiling section is provided with a conical structure wind chamber 9, the wind chamber 9 is provided with a furnace bottom air inlet, the boiling section is provided with a distribution plate, the distribution plate is provided with a side hole shaped air cap communicated with the wind chamber, the middle part of the distribution plate is provided with a slag discharge hole, and the bottom of the wind chamber 9 is provided with a slag discharge pipe, and other structures required by the fluidized bed furnace are the same as those of the prior art fluidized bed furnace, in other embodiments, it can also be provided with a secondary air inlet close to the ignition port;

[0035] In the embodiment, the pulling member comprises a refractory rope 6 connected with the knocking block 4, and it is to be noted that since the temperature in the air chamber 9 is generally more than 300 DEG C, in order to make the refractory rope 6 be used smoothly, the refractory rope 6 can be selected from a ceramic fiber rope which can withstand a high temperature of 1200 DEG C and the like, and the refractory rope 6 is arranged to pass through the via hole 8 on the side of the slagging pipe close to the protruding block 5 from the perspective of the annular, and the refractory rope 6 passes out of the outside of the fluidized bed furnace body 1 from the via hole 8. It is to be noted that since the slagging pipe is provided with an on-off valve, the via hole 8 is arranged on the upper portion of the on-off valve, and the size of the via hole 8 is close to the size of the refractory rope 6, so that one end of the refractory rope 6 can just pass through the via hole 8; one end of the refractory rope 6 is connected with the knocking block 4, and the other end passes through the via hole 8, and an operator can pull one end of the refractory rope 6 from the outside, so that the knocking block 4 passes through each protruding block 5 in turn, thereby knocking the inner wall of the fluidized bed furnace for multiple times.

[0036] In one embodiment, one end of the refractory rope 6 arranged outside the fluidized bed furnace body 1 is provided with a handle 7. An operator can pull the refractory rope 6 through the handle 7, and meanwhile, the handle 7 is larger in volume than the via hole, so that the refractory rope 6 can be effectively prevented from retracting into the fluidized bed furnace. In order to avoid scalding hands, the handle 7 can be made of a material with low thermal conductivity.

[0037] In one embodiment, as shown in the figure, Figure 3 the side close to the opening and the side close to the elastic member 3 of the protruding block 5 are both provided with a slope structure. The slope structure makes the knocking block smoothly reach the top surface of the protruding block 5 in the sliding process, and then smoothly reach the gap between two protruding blocks 5 from the top surface, thereby smoothly knocking the inner wall of the fluidized bed furnace.

[0038] The specific use method of the utility model is as follows:

[0039] Referring to Figures 1-2 when it is needed to clean the impurities in the fluidized bed furnace body 1, the valve of the slagging pipe is opened, and then the handle 7 is held and pulled outwards, the refractory rope 6 is stretched outwards, and the knocking block 4 is driven to pass through each protruding block 5 in turn, and meanwhile, the elastic member 3 is elongated, and since the gap between the protruding block 5 and the adjacent two protruding blocks 5 has a height difference, the knocking block 4 falling between the adjacent two protruding blocks 5 can knock the inner wall of the fluidized bed furnace body 1 for multiple times, thereby making the inner wall of the fluidized bed furnace body 1 vibrate, and making the materials adhered thereto fall into the slagging pipe, so that the impurities are smoothly discharged.

[0040] The above embodiments only express the specific implementation of the present application, which is described in more detail and specifically, but cannot be understood as a limitation to the protection scope of the present application. It should be noted that for those skilled in the art, without departing from the technical concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A fluidized bed furnace, comprising a fluidized bed furnace body (1), characterized in that: The device includes a shell (2) disposed on the side wall of the air chamber (9) of the fluidized bed furnace body (1). The shell (2) and the inner side wall of the air chamber (9) together form a cavity for accommodating the striking component. The cavity has an opening on the side near the slag discharge pipe. The striking component includes an elastic element (3) disposed on the side of the cavity away from the opening. The elastic element (3) is connected to a striking block (4). The striking block (4) is connected to a pulling element. One end of the pulling element passes through the slag discharge pipe and is disposed outside the fluidized bed furnace body (1). Several protrusions (5) are disposed on the side of the cavity near the inner side wall of the air chamber (9).

2. A fluidized bed boiler according to claim 1, characterized in that: The pulling member includes a refractory rope (6) connected to the striking block (4), and a through hole (8) is provided on the side of the slag discharge pipe near the protrusion (5) when viewed from the ring, and the refractory rope (6) passes through the through hole (8) to the outside of the fluidized bed furnace body (1).

3. A fluidized bed boiler according to claim 2, characterized in that: The refractory rope (6) is provided with a handle (7) at one end outside the body of the fluidized bed furnace (1).

4. A fluidized bed boiler according to any one of claims 1-3, characterized in that: Several of the protrusions (5) are arranged in a straight line along the slope of the inner wall of the air chamber (9).

5. A fluidized bed boiler according to any one of claims 1-3, characterized in that: The protrusion (5) has a sloping structure on the side near the opening and on the side near the elastic member (3).

6. A fluidized bed furnace according to any one of claims 1-3, characterized in that: The striking block (4) has a spherical structure.

7. A fluidized bed boiler according to any one of claims 1-3, characterized in that: The elastic element (3) is a spring, and the elastic force of the spring is greater than the weight of the striking block (4).

8. A fluidized bed furnace according to any one of claims 1-3, characterized in that: The distance between two adjacent protrusions (5) is greater than the size of the striking block (4).

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