Screw conveyer

Abstract

The utility model relates to the technical field of garbage power generation, in particular to a spiral conveyor which comprises a spiral shaft (1) and a conveyor shell (6), and the spiral shaft (1) is arranged in the conveyor shell (6). A movable assembly is arranged on the spiral shaft (1), and a spiral blade (2) is connected to the movable assembly; the movable structure can ensure that the device normally conveys stove ash, and can effectively give way when encountering large foreign matters; the screw conveyor can be prevented from being blocked by large foreign matters, so that shutdown and equipment damage are avoided; and continuous operation of equipment can be guaranteed, and the conveying work efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage power generation, and in particular to a screw conveyor. Background Art

[0002] Due to the requirements of relevant environmental protection regulations, there are more and more waste-to-energy plant projects. The ash after combustion in the superheater enters the downstream slag removal equipment through a screw conveyor. This screw conveyor will cause blockage and other phenomena due to unknown agglomerates and large pieces of coke in the ash passing through it. The instantaneous impact is too large, causing the screw shaft to deform and thus damage the equipment.

[0003] After searching, the applicant found that a Chinese patent document with publication number CN102180339A disclosed a shaftless garbage conveyor on September 14, 2011, including a conveying trough and a spiral blade arranged in the conveying trough, a sealing cover plate is provided on the conveying trough, a feeding port for entering garbage is provided at the rear of the sealing cover plate, a driving motor for driving the spiral blade is provided at the rear end of the conveying trough, a discharge port is provided at the front end of the conveying trough to communicate with the feeding part of the incinerator, and a sealing structure is provided at the front part of the conveying trough to allow the garbage to fall evenly into the feeding part of the incinerator.

[0004] This device cannot solve the problem of large foreign objects blocking the conveyor. Utility Model Content

[0005] The utility model aims to provide a screw conveyor which can prevent large foreign objects from blocking the conveyor.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a screw conveyor, including a screw shaft and a conveyor housing, the screw shaft is placed in the conveyor housing; a movable component is provided on the screw shaft, and a spiral blade is connected to the movable component.

[0007] The movable assembly comprises a shaft sleeve, and the shaft sleeve is connected to the screw shaft.

[0008] A plurality of the sleeves are evenly distributed on the spiral shaft.

[0009] Adjacent shaft sleeves are movably connected.

[0010] The sleeve includes a first sleeve and a second sleeve; first connecting plates are respectively provided on both sides of the first sleeve, and a first connecting hole is provided on the first connecting plate; second connecting plates are respectively provided on both sides of the second sleeve, and a second connecting hole is provided on the second connecting plate; a connecting pin is provided between the first connecting hole and the second connecting hole.

[0011] The second connecting plate is arranged on one side of the first connecting plate; one end of the connecting pin is placed in the first connecting hole, and the other end of the connecting pin is placed in the second connecting hole.

[0012] The first connecting hole and the second connecting hole are both waist-shaped holes.

[0013] The spiral blade is connected to the shaft sleeve.

[0014] A motor is provided at one end of the screw shaft, and a bearing is connected to the other end of the screw shaft.

[0015] A support seat is provided at the bottom of the conveyor housing; a reducer is provided at the end of the screw shaft, and the reducer is connected to the motor.

[0016] The beneficial effects of this application are:

[0017] The movable assembly includes a sleeve; a plurality of sleeves are arranged on the spiral shaft; sleeves arranged at both ends of the spiral shaft are welded to the spiral shaft; the remaining sleeves are sleeved on the spiral shaft; adjacent sleeves sleeved on the spiral shaft are movably connected;

[0018] The shaft sleeve comprises a first shaft sleeve and a second shaft sleeve arranged adjacently; first connecting plates are arranged on both sides of the first shaft sleeve, and a first connecting hole is arranged on the first connecting plate; second connecting plates are arranged on both sides of the second shaft sleeve, and a second connecting hole is arranged on the second connecting plate; the first connecting plate and the second connecting plate are arranged overlappingly, so that the positions of the first connecting hole and the second connecting hole correspond to each other, and connecting pins are installed in the first connecting hole and the second connecting hole, so that the first shaft sleeve and the second shaft sleeve arranged adjacently can be connected; adjacent shaft sleeves sleeved on the spiral shaft are connected in this way;

[0019] A motor is provided at one end of the spiral shaft, and a bearing is connected to the other end; a spiral blade is connected to each sleeve; when the motor is started, the motor drives the spiral shaft to rotate; the spiral shaft drives the sleeves welded at both ends of the spiral shaft to rotate; the sleeves welded on the spiral shaft drive the other sleeves sleeved on the spiral shaft to rotate; the sleeve drives the spiral blades to rotate; at this time, the ash can be transported; when large foreign matter enters the conveying shell, the large foreign matter will squeeze the sleeve, and at this time the sleeve will move radially on the spiral shaft, thereby making way for the large foreign matter; thereby, large foreign matter can be prevented from blocking the screw conveyor, resulting in shutdown and equipment damage; the continuous operation of the equipment can be guaranteed, and the efficiency of the conveying work can be effectively improved;

[0020] The device has a simple structure and is easy to repair without increasing the labor intensity of workers; and the replacement of spare parts saves costs, and only the shaft sleeve needs to be replaced during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the screw conveyor.

[0023] Figure 2 for Figure 1 The side view of the screw conveyor is shown.

[0024] The marks in the above figure are:

[0025] The markings in the figure are: 1. spiral shaft, 2. spiral blade, 3. sleeve, 4. motor, 5. bearing, 6. conveyor housing, 7. support seat, 8. reducer. DETAILED DESCRIPTION

[0026] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the utility model and facilitating its implementation.

[0027] Figure 1 The screw conveyor shown comprises a screw shaft 1 and a conveyor housing 6, wherein the screw shaft 1 is placed in the conveyor housing 6; a movable assembly is arranged on the screw shaft 1, and a screw blade 2 is connected to the movable assembly. The movable structure can ensure that the device can normally transport furnace ash, and can effectively give way when encountering large pieces of foreign matter; it can prevent large pieces of foreign matter from blocking the screw conveyor, causing shutdown and equipment damage; it can ensure the continuous operation of the equipment and effectively improve the efficiency of the conveying work.

[0028] The movable assembly includes a sleeve 3, which is connected to the spiral shaft 1. The spiral shaft 1 is solid round steel; two sleeves 3 are welded on both ends of the spiral shaft 1; multiple sleeves 3 connected to each other are movably sleeved on the spiral shaft 1; when the spiral shaft 1 rotates, it can drive the sleeves 3 welded on both ends to rotate; the sleeve 3 welded on the spiral shaft 1 drives the other sleeves 3 sleeved on the spiral shaft 1 to rotate; the sleeve 3 drives the spiral blade 2 to rotate; at this time, the ash can be transported.

[0029] A plurality of sleeves 3 are evenly distributed on the spiral shaft 1. The spiral shaft 1 is sleeved with a plurality of sleeves 3; each sleeve 3 is provided with a spiral blade 2, and when the sleeve 3 rotates, the spiral blade 2 is driven to rotate, thereby realizing the transportation of furnace ash.

[0030] Adjacent sleeves 3 are movably connected. Multiple sleeves 3 are sleeved on the spiral shaft 1; the sleeves 3 are round tube structures, and their diameter is larger than the diameter of the spiral shaft 1; adjacent sleeves 3 are connected by connecting pins, and when squeezed by large foreign objects, the adjacent sleeves 3 can achieve relative displacement on the spiral shaft 1 to make way for the large foreign objects.

[0031] The sleeve 3 includes a first sleeve and a second sleeve; first connecting plates are provided on both sides of the first sleeve, and a first connecting hole is provided on the first connecting plate; second connecting plates are provided on both sides of the second sleeve, and a second connecting hole is provided on the second connecting plate; a connecting pin is provided between the first connecting hole and the second connecting hole. The first sleeve and the second sleeve are respectively sleeved on the spiral shaft 1, and radial displacement on the spiral shaft 1 can be achieved; when the connecting pin is inserted into the first connecting hole and the second connecting hole at the same time, the first sleeve and the second sleeve can be movably connected, and at the same time, the two can achieve relative movement on the spiral shaft 1 when squeezed to make way for large foreign objects; the sleeve 3 includes multiple groups of first sleeves and second sleeves.

[0032] The second connecting plate is arranged on one side of the first connecting plate; one end of the connecting pin is placed in the first connecting hole, and the other end of the connecting pin is placed in the second connecting hole. The first connecting plate and the second connecting plate are arranged overlappingly, so that the positions of the first connecting hole and the second connecting hole correspond to each other. At this time, the connecting pins are installed in the first connecting hole and the second connecting hole, so that the adjacent first sleeve and the second sleeve can be connected; the adjacent sleeves 3 sleeved on the spiral shaft 1 are all connected in this way.

[0033] The first connecting hole and the second connecting hole are both waist-shaped holes. The connecting pin cooperates with the waist-shaped hole to realize the connection between the first sleeve and the second sleeve while enabling the two to achieve a certain relative displacement, thereby realizing a flexible giving way operation for large foreign objects.

[0034] The shaft sleeve 3 is connected with a spiral blade 2. Each shaft sleeve 3 is welded with a spiral blade 2; when each shaft sleeve 3 keeps horizontal operation, a plurality of single spiral blades 2 arranged on the shaft sleeve 3 can form a continuous integral spiral blade, thereby performing efficient spiral transportation of furnace ash.

[0035] A motor 4 is provided at one end of the spiral shaft 1, and a bearing 5 is connected to the other end of the spiral shaft 1. The bearing 5 is connected to the bearing seat, and can realize the rotation operation of the spiral shaft 1; the motor 4 is started, and the motor 4 drives the spiral shaft 1 to rotate; the spiral shaft 1 drives the sleeves 3 welded at both ends of the spiral shaft 1 to rotate; the sleeves 3 welded on the spiral shaft 1 drive the other sleeves 3 sleeved on the spiral shaft 1 to rotate; the sleeves 3 drive the spiral blades 2 to rotate; at this time, the furnace ash can be transported.

[0036] A support seat 7 is provided at the bottom of the conveyor housing 6; a reducer 8 is provided at the end of the spiral shaft 1, and the reducer 8 is connected to the motor 4. The support seat 7 is provided at the bottom of the conveyor housing 6, which can realize stable support for the device so that the spiral conveying work can proceed normally; the reducer 8 is connected to the motor 4, and the reducer 8 effectively reduces the rotation speed and increases the torque output.

[0037] The specific working process of the utility model is as follows:

[0038] Start the motor 4, which drives the screw shaft 1 to rotate; the screw shaft 1 drives the sleeves 3 welded on both ends of the screw shaft 1 to rotate; the sleeves 3 welded on the screw shaft 1 drive the other sleeves 3 connected on the screw shaft 1 to rotate; the sleeves 3 drive the spiral blades 2 to rotate; now the ash can be transported; when large pieces of foreign matter enter the conveying shell 6, the large pieces of foreign matter will squeeze the sleeves 3, and now the sleeves 3 will move radially on the screw shaft 1, thereby making way for the large pieces of foreign matter.

[0039] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A screw conveyor, characterized in that: It comprises a screw shaft (1) and a conveyor housing (6), wherein the screw shaft (1) is placed in the conveyor housing (6); a movable component is provided on the screw shaft (1), and a screw blade (2) is connected to the movable component; The movable component comprises a shaft sleeve (3), and the shaft sleeve (3) is connected to the screw shaft (1); The shaft sleeve (3) comprises a first shaft sleeve and a second shaft sleeve; first connecting plates are respectively provided on both sides of the first shaft sleeve, and a first connecting hole is provided on the first connecting plate; second connecting plates are respectively provided on both sides of the second shaft sleeve, and a second connecting hole is provided on the second connecting plate; a connecting pin is provided between the first connecting hole and the second connecting hole; The second connecting plate is arranged on one side of the first connecting plate; one end of the connecting pin is placed in the first connecting hole, and the other end of the connecting pin is placed in the second connecting hole; The spiral blade (2) is connected to the shaft sleeve (3); A motor (4) is provided at one end of the screw shaft (1), and a bearing (5) is connected to the other end of the screw shaft (1); A support seat (7) is provided at the bottom of the conveyor housing (6); a reducer (8) is provided at the end of the screw shaft (1), and the reducer (8) is connected to the motor (4).

2. A screw conveyor according to claim 1, characterized in that: The plurality of shaft sleeves (3) are evenly distributed on the spiral shaft (1).

3. A screw conveyor according to claim 2, characterized in that: Adjacent shaft sleeves (3) are movably connected.

4. A screw conveyor according to claim 3, characterized in that: The first connecting hole and the second connecting hole are both waist-shaped holes.

Images