Dry reactor of incinerator

Abstract

The invention belongs to the technical field of incinerators, and particularly relates to a dry reactor of an incinerator. Comprising a reactor outer cylinder which is of a hollow structure, the upper end of the reactor outer cylinder is a closed end, a bent pipe part is formed at the lower end, and an outlet communicated with the interior is formed in the tail end of the bent pipe part; the reactor inner barrel is of a vertical barrel-shaped structure with openings in the two ends and extends into the reactor outer barrel from the bent pipe part, the end, located in the reactor outer barrel, of the reactor inner barrel is communicated with the interior of the reactor outer barrel, and an inlet port is formed in the end, located outside the reactor outer barrel, of the reactor inner barrel; the mixed material receiving piece is arranged at the closed end of the reactor outer barrel and is positioned right above the reactor inner barrel; and the plurality of mixed material receiving cylinders are distributed in the inner cylinder of the outer reactor at equal intervals.

Description

Technical Field

[0001] The invention belongs to the technical field of incinerators, and in particular relates to a dry reactor of an incinerator. Background Art

[0002] Dry deacidification of flue gas is a technology that uses powdered or granular solid reactants (such as baking soda, slaked lime) to react chemically or physically with sulfur-containing gaseous pollutants in the flue gas to achieve the deacidification effect. This deacidification technology is a gas-solid reaction, and the reaction rate and gas mixing are the main factors restricting the efficiency of dry deacidification.

[0003] Conventional dry reactors are usually composed of inner and outer cylinders, inlet and outlet flues, etc. The existing reactors make the airflow form turbulence, collide and rub against each other, so that the gas and solid achieve a certain mixing effect. However, considering the current high requirements for ultra-low emissions in environmental protection and the difficulty of increasing the size and height of deacidification reactors in the hazardous waste industry, the deacidification efficiency and effect of the existing technology are unsatisfactory. Summary of the invention

[0004] The object of the present invention is to provide a dry reactor for an incinerator with a simple structure and improved deacidification effect and efficiency in view of the above-mentioned technical problems.

[0005] In view of this, the present invention provides a dry reactor of an incinerator, comprising: The reactor outer cylinder is a hollow structure, with a closed end at the upper end and a curved tube portion at the lower end, and an outlet port communicating with the interior is formed at the end of the curved tube portion; The reactor inner cylinder is a vertical cylindrical structure with openings at both ends, extending from the curved pipe portion into the reactor outer cylinder, and one end located inside the reactor outer cylinder is connected to the inside of the reactor outer cylinder, and one end located outside the reactor outer cylinder is formed with an inlet port; The mixing receiving piece is arranged on the closed end of the outer cylinder of the reactor and is located directly above the inner cylinder of the reactor; A plurality of mixing receiving cylinders are evenly distributed inside the inner cylinder of the outer reactor.

[0006] In the above technical solution, further, the mixed material receiving member includes: The mixing hopper is a conical structure with a diameter increasing from one end close to the inner cylinder of the reactor to the closed end of the outer cylinder of the reactor; A retaining frame is fixed in the outer cylinder of the reactor and supports the mixing hopper; The guide plate is fixedly arranged on the closed end of the reactor outer cylinder and is a conical structure with a gradually increasing diameter from the closed end of the reactor outer cylinder toward the reactor inner cylinder.

[0007] In the above technical solution, further, the mixing receiving tube includes: The inner guide column is a tower-like structure that is wide at the bottom and narrow at the top, and its outer wall is curved; A plurality of inner guide wings, all of which have arc-shaped cross-sections and are evenly distributed on the outer wall of the inner guide column according to the circumference; The inner guide cover is coaxially formed outside the inner guide column and is a trumpet-shaped structure that is wide at the bottom and narrow at the top with openings at both ends, and the wall surface is arc-shaped, and the inner wall is fixedly connected to the inner guide wing; The inner guide channel is formed between the inner guide column and the inner guide cover, has a structure that is wide at the bottom and narrow at the top, and is evenly divided by a plurality of inner guide wings.

[0008] In the above technical solution, further, the mixing receiving tube also includes: The side guide cover is coaxially formed on the outside of the inner guide cover and is a trumpet-shaped structure with a wide bottom and an upper part, openings at both ends, and an arc-shaped wall surface; The side guide channel is formed between the inner guide cover and the outer guide cover, and has a structure that is wider at the bottom and narrower at the top.

[0009] In the above technical solution, further, both ends of the inner guide cover are higher than the inner guide column, the bottom of the side guide cover is in the same plane as the bottom of the inner guide cover, and the upper part of the side guide cover is higher than the upper part of the inner guide cover.

[0010] In the above technical solution, further, the mixing receiving tube also includes: A plurality of side guide wings, with arc-shaped cross-sections, are evenly distributed between the inner guide cover and the side guide cover along the circumference, and evenly divide the side guide channels; The arc top of the side guide wing arc is oriented in the opposite direction to the arc top of the inner guide wing arc, and the number of the side guide wings is greater than the number of the inner guide wings.

[0011] In the above technical solution, further, the mixing receiving tube also includes: The outer guide cover is coaxially formed outside the side guide cover and is a trumpet-shaped structure with a wide bottom and a narrow top, openings at both ends, and a curved wall surface; The outer guide channel is formed between the outer guide cover and the side guide cover and has a structure that is wide at the bottom and narrow at the top; The lower end of the outer guide cover is sealed and connected to the inner wall of the reactor outer cylinder.

[0012] In the above technical solution, further, the mixing receiving tube also includes: A plurality of outer guide wings, with arc-shaped cross-sections, are evenly distributed between the side guide shield and the outer guide shield along the circumference, and evenly divide the outer guide channel; The direction of the arc top of the outer guide wing arc is the same as the direction of the arc top of the inner guide wing arc; and the number of the outer guide wings is greater than the number of the side guide wings.

[0013] In the above technical solution, further, the mixing receiving tube also includes: The upper receiving cover is integrally formed on the upper part of the outer guide cover, and is a trumpet-shaped structure with a narrow bottom and a wide top, openings at both ends, and an arc shape; The upper end of the upper receiving cover is sealedly connected to the inner wall of the outer cylinder of the reactor.

[0014] The beneficial effects of the present invention are: 1. The reactor can achieve good receiving effect when the flue gas enters the outer cylinder of the reactor through the setting of the mixing receiving piece; 2. The setting of the mixing receiving tube can ensure the mixing effect of the flue gas and the reactant, and at the same time ensure the flow rate of the air flow, thereby ensuring the effect and efficiency of deacidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic structural diagram of the mixing receiving tube in the present invention from the first viewing angle; Figure 3 This is a schematic structural diagram of the mixing receiving tube in the present invention from a second viewing angle; Figure 4 It is a schematic cross-sectional view of one part of the mixing receiving tube in the present invention; Figure 5 It is a cross-sectional schematic diagram of another part of the mixing receiving tube in the present invention; The markings in the figure are: 1-reactor outer cylinder, 2-reactor inner cylinder, 3-mixing hopper, 4-retaining frame, 5-material guide plate, 6-inner guide column, 7-inner guide wing, 8-inner guide cover, 9-inner guide channel, 10-side guide cover, 11-side guide channel, 12-side guide wing, 13-outer guide cover, 14-outer guide channel, 15-outer guide wing, 16-upper receiving cover. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0017] Embodiment 1: This embodiment provides a dry reactor of an incinerator, comprising: The reactor outer cylinder 1 is a hollow structure, with a closed end at the upper end and a curved tube portion at the lower end, and an outlet port communicating with the interior is formed at the end of the curved tube portion; The reactor inner tube 2 is a vertical cylindrical structure with openings at both ends, extending from the curved pipe portion into the reactor outer tube 1, and one end located inside the reactor outer tube 1 is connected to the inside of the reactor outer tube 1, and one end located outside the reactor outer tube 1 is formed with an inlet port; The mixing receiving piece is arranged on the closed end of the reactor outer cylinder 1 and is located directly above the reactor inner cylinder 2; A plurality of mixing receiving cylinders are evenly distributed inside the inner cylinder 2 of the outer reactor.

[0018] In this embodiment, the mixed airflow of flue gas and reactant enters the reactor inner tube 2 through the inlet port of the reactor inner tube 2, then undergoes further mixing reaction through the mixing receiving tube, then undergoes a 180° turn through the upper end of the reactor inner tube 2, enters the reactor outer tube 1, and finally exits the reactor through the outlet port. The setting of the mixing receiving part can play a good receiving effect in the process of flue gas entering the reactor outer tube 1, and the setting of the mixing receiving tube can improve the uniform distribution of the reactant in the flue gas. The reactant can be baking soda powder, and the setting of multiple mixing receiving tubes can improve the efficiency and efficiency of deacidification.

[0019] Embodiment 2: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0020] Mixing parts include: The mixing hopper 3 is a conical structure with a diameter increasing from one end close to the reactor inner tube 2 to the closed end of the reactor outer tube 1; A retaining frame 4 is fixed in the outer cylinder 1 of the reactor and supports the mixing hopper 3; The guide plate 5 is fixedly arranged on the closed end of the reactor outer cylinder 1 and has a conical structure with a gradually increasing diameter from the closed end of the reactor outer cylinder 1 toward the reactor inner cylinder 2 .

[0021] In this embodiment, the conical mixing hopper 3 can better facilitate the turning of the mixed airflow and further improve the mixing effect of the reactants and the flue gas; the retaining frame 4 can ensure that the mixing hopper 3 is better fixed in the reactor outer tube 1; and the guide plate 5 can further guide the mixed airflow.

[0022] Embodiment 3: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features: The mixing tube includes: The inner guide column 6 is in a tower-like structure that is wide at the bottom and narrow at the top, and the outer wall is in an arc shape; A plurality of inner guide wings 7, all of which have arc-shaped cross-sections and are evenly distributed on the outer wall of the inner guide column 6 along the circumference; The inner guide cover 8 is coaxially formed outside the inner guide column 6, and is a trumpet-shaped structure with a wide bottom and a narrow top and openings at both ends, and the wall surface is arc-shaped, and the inner wall is fixedly connected to the inner guide wing 7; The inner guide channel 9 is formed between the inner guide column 6 and the inner guide cover 8 , has a structure that is wider at the bottom and narrower at the top, and is evenly divided by a plurality of inner guide wings 7 .

[0023] In this embodiment, the setting of the inner guide column 6 can improve the stability of the fixing of the inner guide wing 7; and the inner guide wing 7 is arc-shaped, so that the mixed airflow cannot pass in a straight line when entering, and the mixing effect of the flue gas and the reactant can be improved when the airflow hits the inner guide wing 7. The inner guide channel 9 can accelerate the airflow entering the inner guide channel 9 to a certain extent, thereby ensuring the flow rate of the airflow entering the next mixing receiving cylinder.

[0024] Embodiment 4: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] The mixing receiving tube also includes: The side guide cover 10 is coaxially formed on the outside of the inner guide cover 8, and is a trumpet-shaped structure with a wide bottom and an upper part, openings at both ends, and an arc-shaped wall surface; The side guide channel 11 is formed between the inner guide cover 8 and the outer guide cover, and has a structure that is wider at the bottom and narrower at the top.

[0026] In this embodiment, the side guide cover 10 is provided to expand the airflow through the mixing receiving cylinder; and the side guide channel 11 is wide at the bottom and narrow at the top, so that the airflow entering the side guide channel 11 is accelerated to a certain extent at the same time. The side guide cover 10 with an arc-shaped wall can reduce resistance and friction, and ensure the effect of mixing the flue gas and the reactant when the airflow passes through.

[0027] Embodiment 5: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Both ends of the inner guide cover 8 are higher than the inner guide column 6 , the bottom of the side guide cover 10 is in the same plane as the bottom of the inner guide cover 8 , and the upper part of the side guide cover 10 is higher than the upper part of the inner guide cover 8 .

[0029] In this embodiment, both ends of the inner guide cover 8 are higher than the inner guide column 6 and the upper part of the side guide cover 10 is higher than the upper part of the inner guide cover 8, so that the airflow discharged from the inner guide channel 9 can impact and intersect with the discharge side guide channel 11, thereby further improving the mixing effect.

[0030] Embodiment 6: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] The mixing receiving tube also includes: A plurality of side guide wings 12, which are arc-shaped in cross section, are evenly distributed between the inner guide cover 8 and the side guide cover 10 along the circumference, and evenly divide the side guide channel 11; The top of the arc of the side guide wing 12 is oriented in the opposite direction to the top of the arc of the inner guide wing 7 , and the number of the side guide wings 12 is greater than the number of the inner guide wings 7 .

[0032] In this embodiment, the side guide wings 12 are arranged to disperse the airflow entering the side guide channel 11, and the arc-shaped side guide wings 12 further ensure the mixing effect of the flue gas and the reactant in the airflow, thereby greatly improving the uniformity of the material in the airflow passing through the mixing receiving tube; and the arc tops are in opposite directions, and the number of the side guide wings 12 is greater than the number of the inner guide wings 7, thereby ensuring the amount of airflow entering the side guide channel 11 and the inner guide channel 9; and the arc tops of the side guide wings 12 are in the opposite direction to the arc tops of the inner guide wings 7, so that the airflow discharged from the inner guide channel 9 can better impact and intersect with the airflow discharged from the inner guide channel 9, thereby ensuring the mixing effect of the flue gas and the reactant.

[0033] Embodiment 7: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] The mixing receiving tube also includes: The outer guide cover 13 is coaxially formed outside the side guide cover 10 and is a trumpet-shaped structure with a wide bottom and a narrow top, openings at both ends, and a curved wall surface; The outer guide channel 14 is formed between the outer guide cover 13 and the side guide cover 10 and has a structure of being wider at the bottom and narrower at the top; The lower end of the outer guide cover 13 is sealedly connected to the inner wall of the reactor outer tube 1 .

[0035] In this embodiment, the setting of the outer guide cover 13 further expands the airflow passing through the inner guide channel 9 and the airflow discharged from the inner guide channel 9; and the outer guide channel 14 is wide at the bottom and narrow at the top, so that the airflow entering the outer guide channel 14 is accelerated to a certain extent at the same time. The outer guide cover 13 with an arc-shaped wall can reduce resistance and friction, and ensure the effect of mixing the flue gas and the reactant when the airflow passes through. The mixing receiving tube ensures the uniformity of the airflow through the inner guide channel 9, the side guide channel 11 and the outer guide channel 14, and ensures the uniform distribution of the flue gas and the reactant, and ensures the speed of the airflow, thereby ensuring the effect and efficiency of deacidification.

[0036] Embodiment 8: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] The bottom of the outer guide cover 13 and the bottom of the side guide cover 10 are located on the same plane, and the upper part of the outer guide cover 13 is higher than the upper part of the side guide cover 10 .

[0038] In this embodiment, the upper portion of the outer guide cover 13 is higher than the upper portion of the side guide cover 10 , so that the airflow discharged from the side guide channel 11 can be further mixed with the airflow discharged from the outer guide channel 14 .

[0039] Embodiment 9: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] The mixing receiving tube also includes: A plurality of outer guide wings 15, which are arc-shaped in cross section, are evenly distributed between the side guide cover 10 and the outer guide cover 13 along the circumference, and evenly divide the outer guide channel 14; The direction of the arc top of the outer guide wing 15 is the same as the direction of the arc top of the inner guide wing 7 ; and the number of the outer guide wings 15 is greater than the number of the side guide wings 12 .

[0041] In this embodiment, the setting of the outer guide wing 15 disperses the airflow entering the outer guide flow channel, thereby preventing the occurrence of partial uneven airflow, and the arc top direction of the outer guide wing 15 is the same as the arc top direction of the inner guide wing 7, so that the inner guide flow channel, the side guide flow channel and the outer guide flow channel are further mixed at the outlet of the mixing receiving tube, thereby greatly improving the effect of mixing the flue gas and the reactant in the airflow.

[0042] Embodiment 10: This embodiment provides a dry reactor of an incinerator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] The mixing receiving tube also includes: The upper receiving cover 16 is integrally formed on the upper part of the outer guide cover 13, and is a trumpet-shaped structure with a narrow bottom and a wide top, openings at both ends, and is arc-shaped; The upper end of the upper receiving cover 16 is sealedly connected to the inner wall of the reactor outer tube 1 .

[0044] In this embodiment, the upper receiving cover 16 is provided to seal the top of the mixing receiving tube and the inner wall of the reactor outer tube 1, thereby preventing the airflow or ash from staying in the mixing receiving tube; and the upper receiving cover 16 is arc-shaped, so that the ash and the like can be easily dropped to the bottom of the reactor inner tube 2.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A dry reactor of an incinerator, characterized in that: include: The reactor outer cylinder (1) is of a hollow structure, with a closed upper end and a curved tube portion formed at the lower end, and an outlet port communicating with the interior formed at the distal end of the curved tube portion; The reactor inner cylinder (2) is a vertical cylindrical structure with openings at both ends, extending from the curved pipe portion into the reactor outer cylinder (1), and one end located inside the reactor outer cylinder (1) is connected to the interior of the reactor outer cylinder (1), and one end located outside the reactor outer cylinder (1) is formed with an inlet port; A mixing receiving member is arranged on the closed end of the reactor outer cylinder (1) and is located directly above the reactor inner cylinder (2); A plurality of mixing receiving cylinders are equidistantly distributed inside the inner cylinder (2) of the outer reactor.

2. The dry reactor of an incinerator according to claim 1, characterized in that: The mixed material receiving member comprises: The mixing hopper (3) is a conical structure with a diameter increasing from one end close to the reactor inner tube (2) to the closed end of the reactor outer tube (1); A retaining frame (4) is fixed in the outer cylinder (1) of the reactor and supports the mixing hopper (3); The guide plate (5) is fixedly arranged on the closed end of the reactor outer cylinder (1), and has a conical structure with a diameter increasing from the closed end of the reactor outer cylinder (1) toward the reactor inner cylinder (2).

3. The dry reactor of an incinerator according to claim 1, characterized in that: The mixing receiving tube comprises: The inner guide column (6) is in the shape of a tower, which is wide at the bottom and narrow at the top, and has an arc-shaped outer wall; A plurality of inner guide wings (7) each having an arc-shaped cross section and being evenly distributed on the outer wall of the inner guide column (6) along a circumference; The inner guide cover (8) is coaxially formed outside the inner guide column (6) and has a trumpet-shaped structure that is wide at the bottom and narrow at the top and has openings at both ends, and the wall surface is arc-shaped, and the inner wall is fixedly connected to the inner guide wing (7); The inner guide channel (9) is formed between the inner guide column (6) and the inner guide cover (8), has a structure that is wider at the bottom and narrower at the top, and is evenly divided by a plurality of inner guide wings (7).

4. A dry reactor for an incinerator according to claim 3, characterized in that: The mixing receiving tube further comprises: The side guide cover (10) is coaxially formed on the outside of the inner guide cover (8) and has a trumpet-shaped structure with a wide bottom and a wide top, openings at both ends, and an arc-shaped wall surface; The side guide channel (11) is formed between the inner guide cover (8) and the outer guide cover, and has a structure that is wider at the bottom and narrower at the top.

5. The dry reactor of an incinerator according to claim 4, characterized in that: Both ends of the inner guide cover (8) are higher than the inner guide column (6), the bottom of the side guide cover (10) is in the same plane as the bottom of the inner guide cover (8), and the upper part of the side guide cover (10) is higher than the upper part of the inner guide cover (8).

6. A dry reactor for an incinerator according to claim 4 or 5, characterized in that: The mixing receiving tube further comprises: A plurality of side guide wings (12) having an arc-shaped cross section, which are evenly distributed between the inner guide cover (8) and the side guide cover (10) along a circumference and evenly divide the side guide channel (11); The top direction of the arc of the side guide wing (12) is opposite to the top direction of the arc of the inner guide wing (7), and the number of the side guide wings (12) is greater than the number of the inner guide wings (7).

7. A dry reactor for an incinerator according to claim 6, characterized in that: The mixing receiving tube further comprises: The outer guide cover (13) is coaxially formed on the outside of the side guide cover (10) and has a trumpet-shaped structure that is wide at the bottom and narrow at the top, with openings at both ends, and its wall surface is arc-shaped; An outer guide channel (14) is formed between the outer guide cover (13) and the side guide cover (10) and has a structure that is wider at the bottom and narrower at the top; The lower end of the outer guide cover (13) is sealedly connected to the inner wall of the reactor outer cylinder (1).

8. The dry reactor of an incinerator according to claim 7, characterized in that: The bottom of the outer guide cover (13) and the bottom of the side guide cover (10) are located on the same plane, and the upper part of the outer guide cover (13) is higher than the upper part of the side guide cover (10).

9. The dry reactor of an incinerator according to claim 8, characterized in that: The mixing receiving tube further comprises: A plurality of outer guide wings (15) having an arc-shaped cross section, which are evenly distributed between the side guide cover (10) and the outer guide cover (13) along a circumference and evenly divide the outer guide channel (14); The direction of the arc top of the outer guide wing (15) is the same as the direction of the arc top of the inner guide wing (7); and the number of the outer guide wings (15) is greater than the number of the side guide wings (12).

10. The dry reactor of an incinerator according to claim 9, characterized in that: The mixing receiving tube further comprises: The upper receiving cover (16) is integrally formed on the upper part of the outer guide cover (13), and is a trumpet-shaped structure that is narrow at the bottom and wide at the top, with openings at both ends, and is arc-shaped; The upper end of the upper receiving cover (16) is sealedly connected to the inner wall of the reactor outer cylinder (1).

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