Cyclone solid-gas separation device

Abstract

The utility model belongs to the technical field of separators, and particularly relates to a cyclone solid-gas separation device, which comprises a separation cylinder, a cyclone, a cyclone, a gas inlet and a gas outlet, and is characterized in that a feeding hole is formed in the peripheral side of the top of the separation cylinder along the tangential direction of a cylinder body; the primary collecting assembly is arranged on the inner circumferential wall of the cylindrical part of the separating cylinder; the exhaust pipe is vertically arranged in the separation cylinder, and one end of the exhaust pipe extends out of the top of the separation cylinder; the leading-in assembly is arranged on the peripheral wall of the exhaust pipe; the secondary collecting assembly is arranged in the exhaust pipe and used for solving the problems that in the actual use process of an existing cyclone type solid-gas separator, the separation effect on small-particle and light-weight solid particles is not ideal, the small-particle and light-weight solid particles are likely to be sucked into the exhaust pipe, and the separation effect is not ideal. And a plurality of small and light solid particles are left in the discharged flue gas.

Description

Technical Field

[0001] The utility model belongs to the technical field of separators, and in particular relates to a cyclone solid-gas separation device. Background Art

[0002] The solid-gas separator is one of the key components of the circulating fluidized bed boiler and an important part of the main circulation loop. At present, the separators used in circulating fluidized bed boilers mainly include sedimentation separators, impact separators, and cyclone separators; among them, cyclone separators are the most widely used. The cyclone separator uses the centrifugal force to achieve gas-solid separation in three-dimensional flow. It has the characteristics of high separation efficiency and large resistance, and is widely used in circulating fluidized bed boilers.

[0003] However, in actual use, the current cyclone solid-gas separator has a good separation effect on large and heavy solid particles, but the separation effect on small and light solid particles is not ideal, which makes it easy for small and light solid particles to be sucked into the exhaust pipe, resulting in many small and light solid particles remaining in the exhaust gas. Utility Model Content

[0004] Based on the problems mentioned in the above background technology, the utility model provides a cyclone solid-gas separation device, which is used to solve the problem that the current cyclone solid-gas separator has a less than ideal separation effect on small and light solid particles in actual use, which makes the small and light solid particles easily sucked into the exhaust pipe, resulting in a lot of small and light solid particles remaining in the exhausted flue gas.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A cyclone solid-gas separation device, comprising:

[0007] A separation cylinder, wherein a feed port is provided on the top peripheral side of the separation cylinder along the tangent direction of the cylinder body;

[0008] A primary collecting assembly, which is arranged on the inner peripheral wall of the cylindrical portion of the separation barrel and is used to collect a large amount of solid particles blown into the separation barrel from the feed inlet;

[0009] An exhaust pipe, which is vertically arranged in the separation cylinder and has one end extending to the outside of the top of the separation cylinder, and is used to discharge the gas in the separation cylinder;

[0010] An introduction component, the introduction component is arranged on the outer peripheral wall of the exhaust pipe;

[0011] The secondary collecting component is arranged in the exhaust pipe and is used for collecting small solid particles entering into the exhaust pipe.

[0012] On the basis of the above technical solution, the present invention also makes the following improvements:

[0013] Furthermore, the primary collection assembly includes a plurality of baffles arranged in a circular array on the inner wall of the separation cylinder, each of the baffles is provided with a baffle at one end close to the center of the cylinder, one end of each baffle is spaced apart from an adjacent baffle to form a flow opening, and the mouth of each flow opening caters to the flow direction of the gas-solid material.

[0014] Furthermore, the introduction component includes a plurality of guide plates arranged in a circular array on the outer peripheral wall of the exhaust pipe, each of which is provided with an introduction port on the inner side of the intersection with the exhaust pipe, and the mouth of each introduction port caters to the flow direction of the gas-solid material.

[0015] Furthermore, the secondary collection assembly includes a plurality of baffles arranged in a circular array on the inner wall of the exhaust pipe, one end of each of the baffles is fixedly connected to the adjacent baffle side wall, and each of the baffles is provided with mesh holes, which are respectively oriented towards corresponding inlet ports.

[0016] Furthermore, a mesh cover is commonly provided on the top of each of the enclosure plates.

[0017] Beneficial effects of the utility model:

[0018] 1. Through the combination of the feed port and the primary collection component, when the gas-solid materials in the furnace of the circulating fluidized bed boiler are blown into the separation cylinder through the feed port, the gas-solid materials can be rotated under the action of the cyclone. During the rotation, a large amount of solid materials can be thrown to the primary collection component, and then a large amount of solid materials in the gas-solid materials can be collected, so that a large amount of solid materials are concentrated and fall along the conical part of the separation cylinder;

[0019] 2. Through the combination of the exhaust pipe, the introduction component and the secondary collection component, when the gas-solid material is rotated under the action of the cyclone, the lighter solid particles floating near the outer wall of the exhaust pipe can be concentratedly introduced into the secondary collection component through the introduction component, and then concentrated and discharged to the bottom of the exhaust pipe, thereby removing the lighter solid particles that enter the exhaust pipe with the gas, so that the gas discharged from the exhaust pipe does not contain a large number of solid particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a structural diagram of a cyclone solid-gas separation device of the utility model;

[0022] Figure 2 This is a cross-sectional view of a cyclone solid-gas separation device of the utility model;

[0023] Figure 3 This is a plan view of a cyclone solid-gas separation device of the utility model;

[0024] Figure 4 This is a structural diagram of some components in a cyclone solid-gas separation device of the utility model;

[0025] Figure 5 for Figure 3 Schematic diagram of the middle AA direction;

[0026] Figure 6 for Figure 3 Schematic diagram of the BB direction.

[0027] The attached drawings are marked as follows:

[0028] 101, separation barrel; 102, feed port; 2, exhaust pipe; 301, baffle; 302, shielding plate; 303, flow channel outlet; 401, guide plate; 402, inlet; 501, baffle plate; 502, mesh; 6, mesh cover. DETAILED DESCRIPTION

[0029] like Figure 1 to Figure 6 As shown, a cyclone solid-gas separation device comprises:

[0030] The separation cylinder 101 has a feed port 102 disposed on the top circumference of the separation cylinder 101 along the tangent direction of the cylinder body. The feed port 102 is connected to the exhaust hole of the furnace of the circulating fluidized bed boiler, so that the gas-solid materials generated when the materials are burned in the furnace of the circulating fluidized bed boiler can be blown into the separation cylinder 101 through the feed port 102;

[0031] The primary collecting assembly is arranged on the inner circumferential wall of the cylindrical part of the separation cylinder 101. The primary collecting assembly includes a plurality of baffles 301 arranged in an annular array on the inner wall of the separation cylinder 101. A baffle 302 is arranged at one end of each baffle 301 close to the center of the cylinder. A flow passage 303 is formed between one end of each baffle 302 and the adjacent baffle 301. The mouth of each flow passage 303 caters to the flow direction of the gas-solid material. When the gas-solid material generated by the combustion in the furnace of the circulating fluidized bed boiler is blown into the separation cylinder 101 through the feed port 102, a cyclone can be generated. The gas-solid material can be centrifuged in the separation cylinder 101 under the centrifugal action of the cyclone. The separation cylinder 101 rotates, and a large amount of solid materials can enter the flow channel 303 and hit the baffle 301 during the rotation of the gas-solid materials. The solid materials hitting the baffle 301 can be kept in the area enclosed by the baffle 301, the baffle 302 and the inner wall of the separation cylinder 101 under the shielding effect of the baffle 302, so as to prevent the solid materials from being rebounded to the outside of the baffle 302, thereby allowing a large amount of solid particles to concentrate in the area enclosed by the baffle 301, the baffle 302 and the inner wall of the separation cylinder 101 and fall to the conical part of the separation cylinder 101, so as to complete the separation operation of a large amount of solid materials in the gas-solid materials;

[0032] An exhaust pipe 2, the exhaust pipe 2 is vertically arranged in the separation cylinder 101, and one end thereof extends to the outside of the top of the separation cylinder 101, an introduction component, the introduction component is arranged on the outer peripheral wall of the exhaust pipe 2, and the introduction component includes a plurality of guide plates 401 arranged in a circular array on the outer peripheral wall of the exhaust pipe 2, and an introduction port 402 is arranged on the inner side of the intersection of each guide plate 401 and the exhaust pipe 2, and the mouth of each introduction port 402 caters to the flow direction of the gas-solid material; when a large amount of solid material in the gas-solid material is separated by a primary collection component, the gas in the separation cylinder 101 needs to be discharged through the exhaust pipe 2, so the gas in the separation cylinder 101 will be introduced into the exhaust pipe 2 along each introduction port 402, and in the process of the gas in the separation cylinder 101 being introduced into the exhaust pipe 2 along each introduction port 402, light solid particles will also be sucked into the introduction port 402 together with the gas;

[0033] Secondary collection assembly, the secondary collection assembly is arranged in the exhaust pipe 2, and the secondary collection assembly includes a plurality of baffles 501 arranged in an annular array on the inner wall of the exhaust pipe 2, one end of each baffle 501 is fixedly connected to the side wall of the adjacent baffle 501, and each baffle 501 is provided with a mesh 502, and the mesh 502 is respectively oriented to the corresponding inlet 402; when the gas and the light solid particles are sucked into the inlet 402, the gas can penetrate into the exhaust pipe 2 from the mesh 502 on the baffle 501, and the light solid particles will be in the baffle 501. Under the shielding effect of the plate 501, the light solid particles are concentrated in the area enclosed by the two adjacent baffle plates 501 and the inner wall of the exhaust pipe 2, so that the light solid particles are concentrated and accumulated in this area to increase their weight, and then discharged along the bottom of the exhaust pipe 2 under the action of gravity, so as to separate the light solid particles entering the exhaust pipe 2; and a mesh cover 6 is commonly arranged on the top of each baffle plate 501, and the mesh cover 6 can further separate the light solid particles in the gas rising to the upper part of the exhaust pipe 2, so that the gas discharged from the exhaust pipe 2 does not contain a large number of solid particles.

[0034] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A cyclone solid-gas separation device, characterized in that: include: A separation cylinder (101), wherein a feed port (102) is arranged on the top circumference of the separation cylinder (101) along the tangent direction of the cylinder body; A primary collection component, the primary collection component is arranged on the inner peripheral wall of the cylindrical portion of the separation cylinder (101), and is used to collect a large amount of solid particles blown into the separation cylinder (101) from the feed inlet (102); an exhaust pipe (2), the exhaust pipe (2) being vertically arranged in the separation cylinder (101), and having one end extending to the outside of the top of the separation cylinder (101), and being used for exhausting the gas in the separation cylinder (101); An introduction component, the introduction component being arranged on the outer peripheral wall of the exhaust pipe (2); A secondary collection component is arranged in the exhaust pipe (2) and is used to collect small solid particles entering the exhaust pipe (2).

2. A cyclone solid-gas separation device according to claim 1, characterized in that: The primary collection assembly comprises a plurality of baffles (301) arranged in an annular array on the inner wall of the separation cylinder (101), each of the baffles (301) being provided with a shield plate (302) at one end close to the center of the cylinder, one end of each shield plate (302) being spaced apart from an adjacent baffle plate (301) to form a flow channel opening (303), and the mouth of each flow channel opening (303) is oriented toward the flow direction of the gas-solid material.

3. The cyclone solid-gas separation device according to claim 1, characterized in that: The introduction component comprises a plurality of guide plates (401) arranged in a circular array on the outer peripheral wall of the exhaust pipe (2), each of the guide plates (401) being provided with an introduction port (402) on the inner side of the intersection with the exhaust pipe (2), and the mouth of each of the introduction ports (402) is oriented towards the flow direction of the gas-solid material.

4. A cyclone solid-gas separation device according to claim 3, characterized in that: The secondary collection assembly comprises a plurality of baffles (501) arranged in a circular array on the inner wall of the exhaust pipe (2), one end of each of the baffles (501) being fixedly connected to the side wall of an adjacent baffle (501), and each of the baffles (501) being provided with mesh holes (502), and the mesh holes (502) are respectively oriented towards corresponding inlet ports (402).

5. A cyclone solid-gas separation device according to claim 4, characterized in that: A mesh cover (6) is commonly provided on the top of each of the enclosure plates (501).

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