Grinding head structure for waste tire machining

Abstract

The utility model relates to a grinding head structure for processing a waste tire. The grinding head structure comprises a sealing inner sleeve connected with a pyrolysis kettle, a sealing outer sleeve fixedly connected with a discharging end and a sealing main body arranged between the sealing inner sleeve and the sealing outer sleeve. The sealing body comprises a first sealing structural part and a second sealing structural part which are distributed in the axial direction of the sealing outer sleeve. An annular containing groove is formed in one end face of the sealing outer sleeve and used for containing the first sealing structural part, and the first sealing structural part is detachably connected to the sealing outer sleeve. The second sealing structural part is used for assisting the first sealing structural part to seal the sealing outer sleeve and the sealing inner sleeve. The sealing outer sleeve is connected with the pyrolysis kettle through the sealing inner sleeve and is fixedly connected with the discharging end. A sealing body is arranged between the sealing inner sleeve and the outer sleeve. The inner sleeve and the outer sleeve are sealed together through the first sealing mechanism part and the second sealing mechanism part of the sealing body, so that the sealing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of waste tire processing, in particular to a grinding head structure for processing waste tires. Background Art

[0002] In the process of pyrolysis, waste tires are transported forward and heated evenly during the reaction of materials. Generally, a pyrolysis kettle is used as a reaction vessel for pyrolysis of waste tires. Specifically, waste tires are fed into the pyrolysis kettle through a feeding port by a feeding device for rotating pyrolysis to improve the pyrolysis efficiency. However, the seal between the existing grinding head structure and the pyrolysis kettle adopts a dynamic seal, and the dynamic seal between the grinding head structure and the static fixed part of the grinding head structure in the pyrolysis is particularly important.

[0003] At present, dynamic sealing is mainly achieved by extruding multiple turns of high-temperature resistant graphite packing. However, due to the poor elasticity of graphite packing and the high temperature that is very likely to occur during thermal cracking, high temperature will cause the graphite packing to deform, resulting in poor sealing at the connection between the pyrolysis kettle and the grinding head, which will in turn affect the efficiency of thermal cracking. In addition, the graphite packing needs to be replaced regularly, wasting a lot of manpower and material resources. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a grinding head structure for processing waste tires, which solves the technical problems that the graphite packing has poor elasticity and that thermal cracking is very prone to high temperatures, which can cause deformation of the graphite packing, thereby resulting in poor sealing at the connection between the pyrolysis kettle and the grinding head, which will in turn affect the efficiency of thermal cracking, and that the graphite packing needs to be replaced regularly, wasting a lot of manpower and material resources.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A grinding head structure for processing waste tires, comprising a sealing inner sleeve connected to a pyrolysis kettle, a sealing outer sleeve fixedly connected to a discharge end, and a sealing body arranged between the sealing inner sleeve and the sealing outer sleeve;

[0009] The sealing body comprises a first sealing structure and a second sealing structure distributed along the axial direction of the sealing sleeve;

[0010] An annular receiving groove is formed on one end surface of the sealing sleeve, and the annular receiving groove is used to receive the first sealing structure, and the first sealing structure is detachably connected to the sealing sleeve;

[0011] The second sealing structure is used to assist the first sealing structure to seal the sealing outer sleeve and the sealing inner sleeve.

[0012] Optionally, the first sealing structure comprises a carbon fiber packing and a pressure ring;

[0013] The carbon fiber packing is placed in the annular receiving groove and is pressed tightly in the annular receiving groove by the pressing ring.

[0014] Optionally, the second sealing structure comprises an O-ring and a Variseal sealing ring symmetrically arranged on both sides of the O-ring.

[0015] Optionally, the second sealing structure further includes a guide belt arranged on one side of the Variseal sealing ring.

[0016] Optionally, it also includes an adjustment structure;

[0017] The adjusting structure is arranged at one end away from the first sealing structure, and the adjusting structure comprises an adjusting gland, an adjusting sealing ring and an adjusting bolt;

[0018] The other end surface of the sealing sleeve is provided with an adjusting annular groove, and the adjusting sealing ring is arranged in the adjusting annular groove and fixed by the adjusting bolt.

[0019] Optionally, a cooling structure is also included;

[0020] The cooling structure comprises an annular cooling chamber opened in the sealing sleeve, and the annular cooling chamber has a liquid inlet and a liquid outlet communicated with the outside, and the annular cooling chamber is horizontally arranged along the axial direction of the sealing sleeve.

[0021] Optionally, the length of the annular cooling chamber is greater than or equal to two-thirds of the length of the sealing sleeve.

[0022] Optionally, the cooling structure further includes a nitrogen inlet groove, and the nitrogen inlet groove is arranged between the adjustment structure and the annular cooling chamber.

[0023] (III) Beneficial effects

[0024] The beneficial effects of the utility model are as follows: the grinding head structure for processing waste tires of the utility model is connected to the pyrolysis kettle through the sealing inner sleeve, and the sealing outer sleeve is fixedly connected to the discharge end. A sealing body is arranged between the sealing inner sleeve and the outer sleeve. The first sealing mechanism component and the second sealing structure component of the sealing body jointly seal between the inner sleeve and the outer sleeve to achieve a better sealing effect. The effect of multiple sealing ensures that there will be auxiliary sealing when the sealing condition is poor, reduces the number of times the sealing components are replaced, and saves a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic cross-sectional structure diagram of the grinding head structure for processing waste tires of the utility model;

[0026] Figure 2 for Figure 1 A magnified detail of the circled “A”.

[0027] [Description of Reference Numerals]

[0028] 1: Sealing inner sleeve; 2: Sealing outer sleeve; 3: Sealing body; 4: Carbon fiber packing; 5: Pressure ring; 6: “O” type sealing ring; 7: Universal seal ring; 8: Adjusting structure; 81: Adjusting gland; 82: Adjusting sealing ring; 83: Adjusting bolt; 9: Cooling structure; 91: Annular cooling chamber; 10: Nitrogen inlet groove; 11: Guide belt. DETAILED DESCRIPTION

[0029] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. The directional terms "upper", "lower", "inner" and "outer" mentioned herein are based on the orientation of the drawings.

[0030] Reference Figure 1-2 As shown, a grinding head structure for processing waste tires proposed in an embodiment of the utility model includes a sealing inner sleeve 1 connected to a pyrolysis kettle, a sealing outer sleeve 2 fixedly connected to a discharge end, and a sealing body 3 arranged between the sealing inner sleeve 1 and the sealing outer sleeve 2.

[0031] In this embodiment, the sealing body 3 includes a first sealing structure and a second sealing structure distributed along the axial direction of the sealing sleeve 2. An annular accommodating groove is provided on one end surface of the sealing sleeve 2, and the annular accommodating groove is used to accommodate the first sealing structure, and the first sealing structure is detachably connected to the sealing sleeve 2. The second sealing structure is used to assist the first sealing structure to seal the sealing sleeve 2 and the sealing inner sleeve 1.

[0032] A grinding head structure for processing waste tires is connected to a pyrolysis kettle through a sealing inner sleeve 1, and a sealing outer sleeve 2 is fixedly connected to a discharge end. A sealing body 3 is arranged between the sealing inner sleeve 1 and the outer sleeve 2. The first sealing structure and the second sealing structure of the sealing body 3 jointly seal between the inner sleeve 1 and the outer sleeve 2 to achieve a better sealing effect. The effect of multiple sealing ensures that there will be auxiliary sealing when the sealing condition is poor, reduces the number of times the seal is replaced, and saves a lot of manpower and material resources.

[0033] Further, the first sealing structure comprises a carbon fiber packing 4 and a pressure ring 5. The carbon fiber packing 4 is placed in the annular receiving groove and is pressed in the annular receiving groove by the pressure ring 5. The tightness of the pressure ring 5 can be appropriately adjusted according to the sealing effect.

[0034] Furthermore, the second sealing structure comprises an O-ring 6 and a Variseal sealing ring 7 symmetrically arranged on both sides of the O-ring 6. The sealing effect is improved by the arrangement of the second sealing structure, that is, when the sealing effect of the carbon fiber packing 4 and the pressure ring 5 is poor, the O-ring 6 and the Variseal sealing ring 7 can both play a sealing role.

[0035] Furthermore, the second sealing structure also includes a guide belt 11 arranged on one side of the Variseal seal ring 7 to prevent the sealing inner sleeve 1 from being displaced in the axial direction with respect to the sealing outer sleeve 2, so as to achieve a better sealing effect.

[0036] Furthermore, the carbon fiber packing 4 is arranged in a sealing groove on an end surface of the sealing sleeve 2 close to the discharge end, and is screwed and compressed by the pressure ring 5, thereby playing a sealing role.

[0037] Furthermore, an adjustment structure 8 is also included. The adjustment structure 8 is arranged at one end away from the first sealing structure, and the adjustment structure 8 includes an adjustment gland 81, an adjustment seal ring 82 and an adjustment bolt 83. An adjustment annular groove is provided on the other end surface of the sealing sleeve 2, and the adjustment seal ring 82 is arranged in the adjustment annular groove and fixed by an adjustment bolt 83. The adjustment gland 81 is arranged in the groove body at one end of the sealing sleeve 2, and the adjustment gland 81 is locked on the adjustment seal ring 82 by the adjustment bolt 83, and the adjustment gland 81 is against the adjustment seal ring 82. Through the setting of the adjustment structure 8, it can be properly adjusted according to the tightness of the sealing part 23, so as to always ensure that the sealing effect is in the best state.

[0038] Furthermore, a cooling structure 9 is included. The cooling structure 9 includes an annular cooling chamber 91 opened in the sealing jacket 2, and the annular cooling chamber 91 has a liquid inlet and a liquid outlet communicated with the outside, and the annular cooling chamber is horizontally arranged along the axial direction of the sealing jacket 2. The cooling structure 9 cools down the temperature, thereby effectively cooling down the temperature to prevent the carbon fiber packing 4 from deformation.

[0039] Furthermore, the length of the annular cooling chamber is greater than or equal to two-thirds of the length of the sealing jacket 2. The carbon fiber packing 4 is fully cooled, thereby improving the cooling effect.

[0040] Furthermore, the cooling structure 9 further comprises a nitrogen inlet groove 10, and the nitrogen inlet groove 10 is arranged between the adjustment structure 8 and the annular cooling chamber 91. Double cooling achieves a good cooling purpose.

[0041] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A grinding head structure for processing waste tires, characterized in that: It comprises a sealing inner sleeve (1) connected to the pyrolysis kettle, a sealing outer sleeve (2) fixedly connected to the discharge end, and a sealing body (3) arranged between the sealing inner sleeve (1) and the sealing outer sleeve (2); The sealing body (3) comprises a first sealing structure component and a second sealing structure component which are distributed axially along the sealing sleeve (2); An annular receiving groove is formed on one end surface of the sealing sleeve (2), the annular receiving groove is used to receive the first sealing structure, and the first sealing structure is detachably connected to the sealing sleeve (2); The second sealing structure is used to assist the first sealing structure to seal the sealing outer sleeve (2) and the sealing inner sleeve (1); The first sealing structure comprises a carbon fiber packing (4) and a pressure ring (5); The carbon fiber packing (4) is placed in the annular receiving groove and is pressed tightly in the annular receiving groove by the pressing ring (5).

2. The grinding head structure for processing waste tires as claimed in claim 1, characterized in that: The second sealing structure comprises an O-type sealing ring (6) and a pan-seal sealing ring (7) symmetrically arranged on both sides of the O-type sealing ring (6).

3. The grinding head structure for processing waste tires as claimed in claim 2, characterized in that: The second sealing structure also includes a guide belt (11) arranged on one side of the Variseal sealing ring (7).

4. The grinding head structure for processing waste tires as claimed in claim 1, characterized in that: Also includes an adjustment structure (8); The adjusting structure (8) is arranged at an end away from the first sealing structure, and the adjusting structure (8) comprises an adjusting gland (81), an adjusting sealing ring (82) and an adjusting bolt (83); The other end surface of the sealing sleeve (2) is provided with an adjusting annular groove, and the adjusting sealing ring (82) is arranged in the adjusting annular groove and fixed by the adjusting bolt (83).

5. The grinding head structure for processing waste tires as claimed in claim 4, characterized in that: Also includes a cooling structure (9); The cooling structure (9) comprises an annular cooling chamber (91) opened in the sealing sleeve (2), and the annular cooling chamber (91) has a liquid inlet and a liquid outlet communicated with the outside, and the annular cooling chamber (91) is horizontally arranged along the axial direction of the sealing sleeve (2).

6. The grinding head structure for processing waste tires as claimed in claim 5, characterized in that: The length of the annular cooling chamber (91) is greater than or equal to two thirds of the length of the sealing sleeve (2).

7. The grinding head structure for processing waste tires as claimed in claim 6, characterized in that: The cooling structure (9) further comprises a nitrogen inlet groove (10), wherein the nitrogen inlet groove (10) is arranged between the adjustment structure (8) and the annular cooling chamber (91).

Images