A rotary support mechanism of a low-rank coal pyrolysis rotary kiln

Abstract

The utility model relates to low rank coal production technical field, specifically disclose a kind of low rank coal pyrolysis rotary kiln's rotary support mechanism, including coaxial fixed connection in the pulley of kiln body outside and respectively be arranged in the radial two sides of pulley and be used to support the supporting roller bearing group of pulley, still include respectively arranged in the axial two sides of pulley main baffle and vice baffle, main stop piece of sliding connection on main baffle, vice stop piece of sliding connection on vice baffle, control piece for controlling the position of main stop piece and be arranged on main baffle and driven piece between main stop piece and vice stop piece, solve the problem that the axial movement of kiln body cannot be supported by the supporting action of traditional rotary support structure.

Description

Technical Field

[0001] This application relates to the field of low-rank coal production technology, and specifically discloses a rotary support mechanism for a low-rank coal pyrolysis rotary kiln. Background Technology

[0002] Low-rank coal is a type of coal that burns with a long flame and produces smoke, indicating a lower degree of coalification. It can be used as fuel, in fuel cells, as a catalyst or carrier, as a soil conditioner, filter media, building material, and adsorbent. The processing of low-rank coal involves a rotary kiln pyrolysis step.

[0003] A rotary kiln, also known as a rotary calcining kiln, mainly consists of a kiln head, kiln body, kiln tail, rotary kiln support frame, and conveyor belt. The rotary kiln support frame and rotary support mechanism are primarily used to keep the rotary kiln stable during rotation, preventing shaking and ensuring stable production.

[0004] The existing rotary kiln's rotary support mechanism mainly consists of a roller bearing assembly installed on the platform and pulleys installed on the outer wall of the rotary kiln. The roller bearing assembly includes a roller, two roller bearings installed on both sides of the roller, and bearing housings for installing the roller bearings. A set of roller bearing assemblies is installed under both sides of the pulley, and the rollers on both sides support the pulley, keeping it stable in the radial direction.

[0005] However, during continuous operation, the kiln body may not only move radially, but also shift in the axial direction. The existing rotary support structure cannot support the axial movement of the kiln body.

[0006] Therefore, the inventor has provided a rotary support mechanism for a low-rank coal pyrolysis rotary kiln to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to solve the problem that traditional rotary support structures cannot provide support for the axial movement of the kiln body.

[0008] To achieve the above objectives, the basic solution of this utility model provides a rotary support mechanism for a low-rank coal pyrolysis rotary kiln, including a pulley coaxially fixed to the kiln body and a roller bearing assembly respectively disposed on both radial sides of the pulley for supporting the pulley. It also includes a main baffle and a secondary baffle respectively disposed on both axial sides of the pulley, a main stop component slidably connected to the main baffle, a secondary stop component slidably connected to the secondary baffle, a control component disposed on the main baffle for controlling the position of the main stop component, and a driven component disposed between the main stop component and the secondary stop component.

[0009] Furthermore, a main guide rod parallel to the kiln body axis is fixedly connected to the main baffle. The main baffle component includes a main platform whose bottom is attached to the end face of the main baffle and controlled by the control component, a main column fixed to the top of the main platform, and a main conical retaining ring coaxially rotatably connected to the main column. A through hole is opened on the main platform for the main guide rod to pass through.

[0010] Furthermore, the control component is a hydraulic push rod, the output end of which is fixedly connected to the inner side of the main baffle, and the stroke direction of the output end of the hydraulic push rod is parallel to the axial direction of the kiln body. A main clamping jaw for placing and clamping the hydraulic cylinder is fixedly connected to one side of the main platform.

[0011] Furthermore, a secondary guide rod parallel to the kiln body axis is fixedly connected to the secondary baffle. The secondary stop component includes a secondary platform whose bottom is attached to the end face of the secondary baffle and controlled by a driven component, a secondary column fixed to the top of the secondary platform, and a secondary conical retaining ring coaxially rotatably connected to the secondary column. A through hole is opened on the secondary platform for the secondary guide rod to pass through.

[0012] Furthermore, the driven member is a driven rod fixed to the free end of the hydraulic push rod, the auxiliary baffle has a hole for the driven rod to pass through, and the auxiliary platform has an auxiliary gripper for placing and clamping the driven rod.

[0013] Furthermore, the roller bearing assembly includes a roller, roller bearings respectively disposed on both sides of the roller for supporting the rotation of the roller, and bearing housings respectively enclosing the roller bearings.

[0014] Furthermore, each bearing housing has a support plate fixed to its top, which fits against and supports the outer wall of the kiln.

[0015] The principle and effect of this solution are as follows: Compared with the prior art, this utility model mainly uses the roller bearing assembly to support the pulley during the rotation of the kiln body, thereby supporting the kiln body and preventing the kiln body from shifting in the radial direction. The main conical retaining ring and the auxiliary conical retaining ring installed on both sides of the pulley clamp the pulley, which limits the pulley in the axial direction and prevents the kiln body from shifting in the axial direction. After shifting occurs, the kiln body can be returned to its original position by controlling the extension length of the hydraulic cylinder output end. This solves the problem that the traditional rotary support structure cannot support the axial movement of the kiln body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to an embodiment of this application is shown. Figure 2 The diagram shows a front view of a rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to an embodiment of this application. Figure 3 A partial side view of a rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to an embodiment of this application is shown. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] The reference numerals in the accompanying drawings of the instruction manual include: kiln body 1, pulley 2, support roller 3, bearing housing 4, support plate 5, main baffle 6, hydraulic cylinder 7, main guide rod 8, main conical retaining ring 9, main platform 10, main gripper 11, driven rod 12, nut 13, auxiliary baffle 14, auxiliary gripper 15, and auxiliary platform 16.

[0020] A rotary support mechanism for a low-rank coal pyrolysis rotary kiln, implementing, for example... Figure 1 and Figure 2 As shown: It includes pulleys 2 that are coaxially fixedly installed outside the kiln body 1 and bearing assemblies of support rollers 3 that are respectively installed on both radial sides of pulleys 2.

[0021] The roller bearing assembly includes a roller 3, roller bearings mounted on both sides of the roller 3 to support its rotation, and bearing housings 4 that enclose the roller bearings. In this embodiment, both the roller bearing assembly and the pulley 2 are implemented using existing technologies and are common installation methods.

[0022] In this embodiment, as Figure 2 As shown, four support rods are welded to the top of the bearing housing 4, and a support plate 5 is fixedly installed on the four support rods. The outer wall of the support plate 5 is in line contact with the outer wall of the kiln body 1. The support plate 5 plays the role of auxiliary support and stabilizing the position of the kiln body 1 in the radial direction.

[0023] In this embodiment, a main baffle 6 and a secondary baffle 14 are respectively installed on both sides of the pulley 2 in the axial direction. The main baffle 6 is equipped with a main stop component and a control component for controlling the position of the main stop component. The secondary baffle 14 is equipped with a secondary stop component. A driven component is also installed between the main stop component and the secondary stop component.

[0024] Specifically, a main guide rod 8 parallel to the axial direction of the kiln body 1 is fixedly installed on the main baffle 6. The main stop component includes a main platform 10, a main column welded to the top of the main platform 10, and a main conical retaining ring 9 coaxially mounted on the main column and rotatable. The bottom of the main platform 10 is in contact with the top end face of the main baffle 6, and the main platform 10 has a through hole for the main guide rod 8 to pass through. The main baffle 6 and the main guide rod 8 together limit the main platform 10, so that the main platform 10 can only slide along the main guide rod 8 and cannot rotate. The small-diameter end of the main conical retaining ring 9 is located above the large-diameter end.

[0025] A secondary guide rod parallel to the axial direction of the kiln body 1 is fixedly installed on the secondary baffle 14. The secondary stop component includes a secondary platform 16, a secondary column welded to the top of the secondary platform 16, and a secondary conical retaining ring coaxially mounted on the secondary column and rotatable. The bottom of the secondary platform 16 is in contact with the top end face of the secondary baffle 14, and the secondary platform 16 has a through hole for the secondary guide rod to pass through. Similarly, the secondary platform 16 can only slide along the secondary guide rod and cannot rotate. The small-diameter end of the secondary conical retaining ring is also located above the large-diameter end.

[0026] The gap between the outer wall of the main conical retaining ring 9 and the outer wall of the secondary conical retaining ring forms a limiting chamber for accommodating the insertion of the pulley 2.

[0027] like Figure 3 As shown, the control component is specifically a hydraulic push rod. The output end of the hydraulic push rod is fixedly installed on the inner side of the main baffle 6, and the stroke direction of the output end of the hydraulic push rod is parallel to the axial direction of the kiln body 1. A main clamping jaw 11 is also fixedly installed on the main platform 10, and the hydraulic push rod passes through the main clamping jaw 11 and is fixed by the main clamping jaw 11. In this embodiment, a hydraulic push rod is installed on each side of the main platform 10.

[0028] The driven component is specifically a driven rod 12 welded to the right end of the hydraulic rod. Holes for the driven rod 12 to pass through are opened on both sides of the auxiliary baffle 14. An external thread is present on a section of the driven rod 12 near its end. After the threaded section passes through the hole, a nut 13 is screwed into each of the driven rods 12 on both sides of the auxiliary baffle 14. Installing the nuts 13 limits the stroke of the driven rod 12 and the output end of the hydraulic push rod, thus ensuring the maximum axial displacement of the kiln body 1 in the event of hydraulic push rod failure. An auxiliary clamp 15 is also fixedly installed on the auxiliary platform 16. The driven rod 12 passes through and is fixed by the auxiliary clamp 15.

[0029] When this utility model is in use, during the rotation of the kiln body 1, the support roller 3 mainly supports the pulley 2, thereby supporting the kiln body 1 and preventing the kiln body 1 from shifting in the radial direction. The pulley 2 is clamped by the main conical retaining ring 9 and the auxiliary conical retaining ring installed on both sides of the pulley 2, which serves to limit the pulley 2 in the axial direction and prevent the kiln body 1 from shifting in the axial direction. After the shift occurs, the kiln body 1 can be returned to its original position by controlling the extension length of the output end of the hydraulic cylinder 7. In addition, the two nuts 13 installed on the driven rod 12 can also ensure the maximum amount of axial shift of the kiln body 1 when the hydraulic cylinder 7 fails.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rotary support mechanism for a low-rank coal pyrolysis rotary kiln, comprising pulleys coaxially fixed to the kiln body and roller bearing assemblies respectively disposed on both radially sides of the pulleys for supporting the pulleys, characterized in that, It also includes a main baffle and a secondary baffle respectively disposed on both sides of the pulley along the axial direction, a main stop component slidably connected to the main baffle, a secondary stop component slidably connected to the secondary baffle, a control component disposed on the main baffle and used to control the position of the main stop component, and a driven component disposed between the main stop component and the secondary stop component.

2. The rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to claim 1, characterized in that, The main baffle is fixedly connected to a main guide rod parallel to the kiln body axis. The main baffle component includes a main platform whose bottom is attached to the end face of the main baffle and is controlled by a control component, a main column fixed to the top of the main platform, and a main conical retaining ring coaxially rotatably connected to the main column. The main platform has a through hole for the main guide rod to pass through.

3. The rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to claim 2, characterized in that, The control component is a hydraulic push rod. The output end of the hydraulic push rod is fixed to the inner side of the main baffle, and the stroke direction of the output end of the hydraulic push rod is parallel to the axial direction of the kiln body. A main clamping jaw for placing and clamping the hydraulic cylinder is fixed to one side of the main platform.

4. The rotary support mechanism for a low-rank coal pyrolysis rotary kiln according to claim 3, characterized in that, The auxiliary baffle is fixedly connected to an auxiliary guide rod parallel to the kiln body axis. The auxiliary stop component includes an auxiliary platform whose bottom is attached to the end face of the auxiliary baffle and controlled by a driven component, an auxiliary column fixedly connected to the top of the auxiliary platform, and an auxiliary conical retaining ring coaxially rotatably connected to the auxiliary column. The auxiliary platform has a through hole for the auxiliary guide rod to pass through.

5. The rotary support mechanism of a low-rank coal pyrolysis rotary kiln according to claim 4, characterized in that, The driven member is a driven rod fixed to the free end of the hydraulic push rod. The auxiliary baffle has a hole for the driven rod to pass through, and the auxiliary platform has an auxiliary gripper for placing and clamping the driven rod.

6. The rotary support mechanism of a low-rank coal pyrolysis rotary kiln according to claim 1, characterized in that, The roller bearing assembly includes a roller, roller bearings respectively located on both sides of the roller for supporting the rotation of the roller, and bearing housings respectively enclosing the roller bearings.

7. The rotary support mechanism of a low-rank coal pyrolysis rotary kiln according to claim 6, characterized in that, The top of each bearing housing is fixedly connected to a support plate that fits and supports the outer wall of the kiln.

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