Feeder for reaction kettle

Abstract

The invention discloses a feeder for a reaction kettle, and mainly relates to the field of feeding of reaction kettles. Comprising a containing cavity, a conical pipe communicated with the containing cavity is arranged at the bottom of the containing cavity, the conical pipe is large in upper portion and small in lower portion, a spraying opening is formed in the bottom end of the conical pipe, a pressurizing opening communicated with the containing cavity is formed in the top of the containing cavity, a bottom ring body, a sliding ring and a top ring body are sequentially arranged in the containing cavity from bottom to top, and the sliding ring is in sliding connection with the containing cavity. An elastic spiral band is arranged between the bottom ring body and the top ring body, the bottom ring body abuts against the conical pipe, and the top ring body abuts against the top face in the containing cavity. Intermittent spraying is carried out through intermittent pressurization, and excitation motion of the top ring body and the sliding ring is generated in the containing cavity at the moment of pressure change, so that material powder is rapidly mixed in a short time before spraying.

Description

Technical Field

[0001] The invention relates to the field of reactor feeding, in particular to a feeder for a reactor. Background Art

[0002] The reactor is a comprehensive reaction vessel. The design of the reactor structure, function and accessories is based on the reaction conditions. From the initial feeding-reaction-discharging, the pre-set reaction steps can be completed with a high degree of automation, and important parameters such as temperature, pressure, mechanical control (stirring, blasting, etc.), reactant / product concentration, etc. during the reaction process are strictly regulated. Its structure is generally composed of a kettle body, a transmission device, a stirring device, a heating device, a cooling device, and a sealing device. The corresponding auxiliary equipment includes a fractionating column, a condenser, a water separator, a collection tank, a filter, etc.

[0003] In the chemical process, the reaction between materials is involved, from feeding to mixing, reaction and discharging of materials. The whole process is located within the chemical equipment system. Therefore, there are high requirements for the flow and mass transfer efficiency of materials.

[0004] In order to achieve rapid dispersion of materials at the feeding end, feeders are often used in the prior art to feed materials into the reactor at the required speed and state through the feeder. The structure and function of the feeder vary according to the different material states and process requirements. In the prior art, ordinary feeders generally have problems such as uneven texture of the powder and insufficient initial velocity when outputting mixed powders, which affects the feeding effect to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to provide a feeder for a reactor, which performs intermittent injection by intermittent pressurization. At the moment of pressure change, an exciting movement of a top ring body and a sliding ring is generated inside the cavity, so that the powder can be mixed briefly and quickly before injection.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A feeder for a reactor comprises a cavity, at the bottom of which a conical tube connected to the cavity is arranged, the conical tube is larger at the top and smaller at the bottom, and an injection port is arranged at the bottom end of the conical tube, at the top of the cavity is arranged a pressurizing port connected to the cavity, in the cavity a bottom ring body, a sliding ring and a top ring body are arranged in sequence from bottom to top, the sliding ring is slidably connected to the cavity, an elastic spiral belt is arranged between the bottom ring body and the top ring body, the bottom ring body abuts against the conical tube, and the top ring body abuts against the top surface in the cavity.

[0008] Preferably, a plurality of protrusions are provided on the outer peripheral wall of the sliding ring, and a sliding groove adapted to the protrusions is provided on the inner wall of the cavity.

[0009] Preferably, a plurality of the protrusions are evenly arranged along the circumference of the sliding ring.

[0010] Preferably, a positioning ring is provided on the upper side of the bottom ring body, and a plurality of support rods are provided between the positioning ring and the bottom ring body, and the support rods abut against the inner wall of the sliding ring.

[0011] Preferably, a plurality of the support rods are evenly arranged along the circumference of the sliding ring.

[0012] Preferably, a plurality of elastic balls are evenly arranged on the top of the top ring body along the circumference of the top ring body.

[0013] Preferably, the axial center lines of the cavity, the tapered tube and the pressurizing port are collinear.

[0014] Preferably, a plurality of convex bands extending along the axial direction of the injection port are provided on the inner wall of the injection port.

[0015] Preferably, an annular bracket is installed on the outer side surface of the cavity, and the cavity is fixed at the feed inlet of the reactor through the bracket.

[0016] Preferably, a shock-absorbing pad is attached and fixed to the bottom of the cavity and at a position outside the top of the conical tube.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The cavity of the present invention is a container for loading mixed powders, serving as the main space of the feeder; the conical tube is an output channel before injection, which is larger at the top and smaller at the bottom to ensure a higher initial velocity; the injection port is located at the lower side of the conical tube, and the mixed powders are ejected downward from it under the pressurized state; the spiral belt supports the top ring body, so that when the pressure changes sharply, the top ring body is in an excited state on the spiral belt, and the pressure is applied to the cavity through the pressurized port for injection; in actual application, the present invention performs intermittent injection through intermittent pressurization, and at the moment of pressure change, the top ring body and the sliding ring are generated in the cavity. Excitation movement, so that the powder can be mixed briefly and quickly before injection.

[0019] 2. The bottom ring body of the present invention is located inside the cavity, and plays a role in supporting and fixing the positioning ring and the top ring body; the support rod on the bottom ring body is used to fix the positioning ring, thereby forming a columnar slideway between the positioning ring and the bottom ring body, and the sliding ring is placed outside the columnar slideway and can slide up and down.

[0020] 3. In order to ensure the stability of the sliding ring movement, the present invention provides a convex head on the side thereof, and places the convex head in the outer sliding groove, thereby playing a role of a second point of positioning during the sliding movement.

[0021] 4. The elastic ball of the present invention (a high-frequency screen spring rubber ball may be used) is located on the top ring body and contacts the top of the cavity, which can prevent the top ring body in an excited state from hard impacting the top of the cavity.

[0022] 5. The present invention adopts intermittent injection to perform feeding. Thanks to the two-stage excitation structure inside the cavity, it can promote rapid mixing of powder before injection, which not only ensures the initial feeding velocity but also improves the uniformity of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0025] Figure 3 yes Figure 1 Enlarged view of part A.

[0026] The numbers in the attached drawings are: 1, cavity; 2, conical tube; 3, injection port; 4, bottom ring body; 5, support rod; 6, positioning ring; 7, boss; 8, slide groove; 9, spiral belt; 10, top ring body; 11, elastic ball; 12, pressurizing port; 13, sliding ring. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0028] Example: As attached Figure 1-3 As shown, the present invention is a feeder for a reactor, comprising a cavity 1, at the bottom of which a conical tube 2 connected to the cavity 1 is provided, the conical tube 2 is larger at the top and smaller at the bottom, and a jet port 3 is provided at the bottom end of the conical tube 2, an integrated structure can be adopted between the conical tube 2 and the cavity 1, the cavity 1 is cylindrical in shape, and has a containing space inside, and the inner diameter of the conical tube 2 decreases from top to bottom.

[0029] A pressurizing port 12 communicating with the chamber 1 is provided at the top of the chamber 1 . The chamber 1 is filled with mixed powder, and the pressurizing port 12 is connected to an air compressor through a pipeline.

[0030] A bottom ring body 4, a sliding ring 13 and a top ring body 10 are sequentially arranged in the cavity 1 from bottom to top. The sliding ring 13 is slidably connected to the cavity 1 and can slide up and down in the cavity 1. The bottom ring body 4 is located in the cavity 1 and fixed at the lower part of the cavity 1. An elastic spiral belt 9 is arranged between the bottom ring body 4 and the top ring body 10. The spiral belt 9 can be made of metal strip or metal wire. The elastic force of the spiral belt 9 makes the bottom ring body 4 abut against the conical tube 2, and the top ring body 10 abuts against the top surface in the cavity 1.

[0031] Preferably, in order to ensure the stability of the sliding ring when sliding up and down, a plurality of protrusions 7 are provided on the outer peripheral wall of the sliding ring 13, and a sliding groove 8 adapted to the protrusion 7 is provided on the inner wall of the cavity 1. The protrusion 7 is located in the sliding groove 8 and can slide along the sliding groove 8. Through the cooperation between the protrusion 7 and the sliding groove 8, a guide is provided for the sliding ring to slide up and down.

[0032] Furthermore, the plurality of protrusions 7 are evenly arranged along the circumference of the sliding ring 13 .

[0033] The protrusion 7 is spherical or columnar, and the protrusion 7 is in contact with the slide groove 8.

[0034] Preferably, in order to further improve the stability of the sliding ring sliding up and down, a positioning ring 6 is provided on the upper side of the bottom ring body 4, and a plurality of support rods 5 are provided between the positioning ring 6 and the bottom ring body 4. The top end of the support rod 5 is welded to the positioning ring 6, and the bottom end is welded to the bottom ring body 4. The support rod 5 abuts against the inner wall of the sliding ring 13.

[0035] Furthermore, a plurality of the support rods 5 are evenly arranged along the circumference of the sliding ring 13 .

[0036] Preferably, a plurality of elastic balls 11 are evenly arranged on the top of the top ring body 10 along the circumference of the top ring body 10 , and the elastic balls 11 are in contact with the top of the cavity 1 .

[0037] Preferably, the axial center lines of the cavity 1, the tapered tube 2, and the pressurizing port 12 are collinear.

[0038] Preferably, a plurality of convex bands extending along the axial direction of the injection port 3 are provided on the inner wall of the injection port 3, and the convex bands are arranged at equal intervals.

[0039] Preferably, an annular bracket is installed on the outer side of the cavity 1, and the cavity 1 is fixed at the feed inlet of the reactor through the bracket.

[0040] Preferably, a shock-absorbing pad is attached and fixed to the bottom of the cavity 1 and at a position outside the top of the conical tube.

[0041] When the present invention is in use, the cavity 1 is a container for loading mixed powder, and the container is used as the main space of the feeder. The conical tube 2 is the output channel before injection, which is larger at the top and smaller at the bottom, and can ensure a higher initial velocity. The injection port 3 is located at the lower side of the conical tube 2, and the mixed powder is sprayed downward from it under the pressurized state. The bottom ring body 4 is located inside the cavity 1, and plays a supporting and fixing role for the positioning ring 6 and the top ring body 10. The support rod 5 on the bottom ring body 4 is used to fix the positioning ring 6, thereby forming a columnar slideway between the positioning ring 6 and the bottom ring body 4, and the sliding ring 13 is sleeved on the outside of this columnar slideway and can slide up and down. In order to ensure the stability of the movement of the sliding ring 13, a boss 7 is provided on its side, and the boss 7 is placed in the outer slide groove 8, so as to play a second point positioning role in the sliding movement. The spiral belt 9 supports the top ring 10, so that when the pressure changes sharply, the top ring 10 is in an excited state on the spiral belt 9, and the elastic ball 11 (a high-frequency screen spring rubber ball can be used) on the top ring 10 contacts the top of the cavity 1 to prevent the top ring 10 in an excited state from hard hitting the top of the cavity 1. The pressure port 12 is used to pressurize the cavity 1 for injection. In actual application, intermittent injection is performed by intermittent pressurization. At the moment of pressure change, the top ring 10 and the sliding ring 13 are vibrated inside the cavity 1, so that the powder is mixed briefly and quickly before injection.

Claims

1. A feeder for a reactor, characterized in that: The invention comprises a cavity (1), wherein a conical tube (2) connected to the cavity (1) is provided at the bottom of the cavity (1), the conical tube (2) is larger at the top and smaller at the bottom, and an injection port (3) is provided at the bottom end of the conical tube (2), and a pressurizing port (12) connected to the cavity (1) is provided at the top of the cavity (1). A bottom ring body (4), a sliding ring (13) and a top ring body (10) are provided in sequence from bottom to top in the cavity (1), the sliding ring (13) is slidably connected to the cavity (1), an elastic spiral belt (9) is provided between the bottom ring body (4) and the top ring body (10), the bottom ring body (4) is in contact with the conical tube (2), and the top ring body (10) is in contact with the top surface in the cavity (1).

2. A feeder for a reactor according to claim 1, characterized in that: A plurality of protrusions (7) are provided on the outer peripheral wall of the sliding ring (13), and a sliding groove (8) adapted to the protrusions (7) is provided on the inner wall of the cavity (1).

3. A feeder for a reactor according to claim 2, characterized in that: A plurality of protrusions (7) are evenly arranged along the circumference of the sliding ring (13).

4. A feeder for a reactor according to claim 1, characterized in that: A positioning ring (6) is provided on the upper side of the bottom ring body (4), a plurality of support rods (5) are provided between the positioning ring (6) and the bottom ring body (4), and the support rods (5) abut against the inner wall of the sliding ring (13).

5. A feeder for a reactor according to claim 4, characterized in that: A plurality of support rods (5) are evenly arranged along the circumference of the sliding ring (13).

6. A feeder for a reactor according to claim 1, characterized in that: A plurality of elastic balls (11) are evenly arranged on the top of the top ring body (10) along the circumference of the top ring body (10).

7. A feeder for a reactor according to claim 1, characterized in that: The axial center lines of the chamber (1), the tapered tube (2) and the pressurizing port (12) are collinear.

8. A feeder for a reactor according to claim 1, characterized in that: A plurality of convex bands extending along the axial direction of the injection port (3) are provided on the inner wall of the injection port (3).

9. A feeder for a reactor according to claim 1, characterized in that: An annular bracket is installed on the outer side of the cavity (1), and the cavity (1) is fixed at the feed inlet of the reactor through the bracket.

10. A feeder for a reactor according to claim 1, characterized in that: A shock-absorbing pad is attached and fixed to the bottom of the cavity (1) and at a position located on the periphery of the top of the conical tube.

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