Feeding mechanism of screening equipment after waste incineration

Abstract

The utility model relates to a feeding mechanism of screening equipment after waste incineration. The feeding mechanism comprises a feeding cylinder A and a feeding cylinder B, the screening equipment is provided with an obliquely-arranged screening roller, an oblique upper roller opening of the screening roller is sealed through an upper end cover, and a feeding roller A is arranged on the upper end cover in a penetrating mode. An auger shaft is mounted in the feeding cylinder B, one end of the feeding cylinder B extends into the feeding cylinder A, and the end of the auger shaft extends into the feeding cylinder A after extending out of the feeding cylinder B; a feeding bin is further arranged on the feeding cylinder B; after materials entering from the feeding bin enter the feeding cylinder B, the materials enter the feeding cylinder A under the action of the auger shaft, and the materials in the feeding cylinder A enter the screening roller under the action of the auger shaft. The screening device has the advantages that material leakage can be avoided, the feeding frequency can be controlled, the screening effect can be improved, and materials can be conveyed smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of waste incineration material screening, in particular to a feeding mechanism of a waste incineration post-screening device. Background Art

[0002] With the acceleration of industrialization and urbanization, there are a large amount of industrial waste and domestic waste. There are metals in these wastes that can be recycled, so it is necessary to incinerate these wastes and screen out the metals.

[0003] During the incineration process, some large pieces of garbage are not fully burned, so screening is required to remove the ashes after complete combustion, leaving behind the incompletely burned materials or the materials with larger particles (these materials usually contain metals). Considering that metal may cause the screen to be blocked, our company adopts the screening design concept of the drum in the design.

[0004] However, the problem is that, unlike the drum screening of quartz sand, a lot of dust will be generated when the incinerated garbage is screened, so both ends of the drum need to be sealed, but it is not convenient to feed after sealing. Based on this, a new feeding structure is designed to protect the structure in view of the characteristics of the drum rolling and generating dust. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a feeding mechanism for a waste incineration post-screening device which can avoid material leakage, control the feeding frequency, improve the screening effect, and smoothly transport materials.

[0006] The purpose of the utility model is achieved through the following technical solutions: the feeding mechanism of the screening equipment after garbage incineration includes a feeding cylinder A and a feeding cylinder B;

[0007] The screening device has an inclined screening drum, the upper drum opening of which is closed by an upper end cover, and a feed drum A is provided through the upper end cover;

[0008] A dragon shaft is installed in the feed barrel B, one end of the feed barrel B extends into the feed barrel A, and the end of the dragon shaft extends from the feed barrel B and then extends into the feed barrel A; a feed bin is also provided on the feed barrel B;

[0009] When the material from the feed bin enters the feed barrel B, it enters the feed barrel A under the action of the dragon shaft, and the material in the feed barrel A enters the screening drum under the action of the dragon shaft.

[0010] As a preferred technical solution of the present application, the feed barrel A can be rotatably mounted on the upper end cover, and the feed barrel A is also connected to a driving mechanism; the lower end of the feed barrel A is sealed, and a material port is opened on the cylindrical surface near the lower end; when the driving mechanism drives the feed barrel A to rotate, when the material port rotates to the lower position, the material in the feed barrel A will be discharged into the screening roller for intermittent material discharge.

[0011] As a preferred technical solution of the present application, a bearing seat is installed at the center of the upper end cover, and the feed barrel A is installed in conjunction with the bearing and the bearing seat; a battery-powered motor is fixed on the upper end cover, and the output shaft of the battery-powered motor is connected to the feed barrel A via corresponding pulleys and belts to form a driving mechanism.

[0012] As a preferred technical solution of the present application, the middle part of the feed barrel A gradually has a disc, and the disc is pressed against the end face of the bearing seat through balls; annular grooves are opened on the disc and the bearing seat, and balls are placed in the annular grooves.

[0013] As a preferred technical solution of the present application, a height and inclination adjustable mechanism is provided below the feed barrel B so that the feed barrel B can be smoothly inserted into the feed barrel A.

[0014] As the preferred technical solution of the present application, the height and inclination adjustable mechanism includes an upper base plate and a lower base frame; an upper base plate is welded and fixed near the upper end and the lower end of the feed barrel B respectively; the four corners of the upper base plate are supported on the lower base frame by support rods; long waist-shaped holes are opened at the four corners of the upper base plate, the upper end of the support rod is shoulder-shaped, and the upper end of the support rod is inserted into the long waist-shaped hole; the lower end of the support rod is threadedly matched with the base frame and is locked by a nut.

[0015] For ease of understanding, the core design points and principles of this solution are explained:

[0016] 1. Problems existing in existing roller screening equipment;

[0017] In the existing drum screening equipment, the drum is also tilted, but the upper drum opening is closed. This design has no problem for the screening of quartz sand, but for the incinerated garbage materials, the incinerated garbage materials often leak out from the upper drum opening after feeding;

[0018] In addition, when the existing drum screens materials, the materials gradually slide from the upper end to the lower end of the drum under the action of gravity, so the screening time is difficult to control, resulting in the screening effect is not particularly good, and repeated screening is required;

[0019] 2. The working process and principle of the present invention;

[0020] a. First, the upper port of the screening drum is closed by the upper end cover. Even if the incinerated garbage materials are screened, the corresponding materials will not leak from the upper port; b. In addition, the material port of the feed barrel A is on the cylindrical surface. The material can be discharged only when the feed barrel A is rotating and when the material port is located at the lower position. In other cases, the material cannot be discharged. Therefore, the rotation of the feed barrel A realizes intermittent feeding (conventionally, the feeding is done consistently), and the frequency of intermittent feeding can be controlled by the driving mechanism; c. By setting the feed barrel B and inserting it into the feed barrel A for feeding, the dragon shaft in the feed barrel B can allow the material that falls from the feed bin to smoothly move forward into the feed barrel B and the feed barrel A (because the material is the incinerated garbage, even if the feed barrel A and the feed barrel B are tilted, it is difficult to flow smoothly under the action of gravity, so it is squeezed through the dragon shaft);

[0021] 3. The core design points of this plan;

[0022] a. The upper port of the screening drum is sealed by the upper end cover, and then a rotatable feed cylinder A is installed on the upper end cover (to prevent material from leaking from the upper port);

[0023] b. The feed port of the feed cylinder A is on the cylindrical surface, and the feed port A can rotate relative to the screening drum (intermittent feeding can be achieved and the frequency of intermittent feeding can be controlled);

[0024] c. The feed barrel B is inserted into the feed barrel A, and the end of the dragon shaft in the feed barrel B can extend into the feed barrel A, so that some of the garbage materials to be incinerated can flow smoothly in the barrel (which cannot flow simply under the action of gravity).

[0025] The utility model has the following advantages:

[0026] (1) For the waste materials after incineration, leakage can be avoided;

[0027] (2) It can feed intermittently and control the feeding frequency; it can prevent too much material from entering the screening drum at the same time, so that the material in the screening drum can be screened well (when there is too much material, the material on the upper layer will flow directly downward, which is likely to result in poor screening effect);

[0028] (3) During feeding, the incinerated garbage materials can be transported smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the structure between the feed cylinder A, the feed cylinder B and the upper end cover;

[0031] Figure 3It is a schematic diagram of the structure in which the feed barrel B is supported;

[0032] Figure 4 It is a schematic diagram of the structure between the support rod and the upper base frame;

[0033] In the figure: 10-screening drum, 11-upper end cover;

[0034] 20-feeding barrel A, 21-feeding port

[0035] 30-feeding cylinder B, 31-dragon shaft, 32-feeding bin, 33-disc, 34-ball;

[0036] 41-upper bottom plate, 42-lower base frame, 43-support rod. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0038] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0040] like Figure 1 to Figure 3 As shown, the feeding mechanism of the waste incineration post-screening device proposed in this embodiment includes a feeding cylinder A20 and a feeding cylinder B30;

[0041] The screening device has an inclined screening drum 10, the upper drum opening of the screening drum 10 is closed by an upper end cover 11, and a feed drum A20 is penetrated through the upper end cover 11;

[0042] A dragon shaft 31 is installed in the feed barrel B30, one end of the feed barrel B30 extends into the feed barrel A20, and the end of the dragon shaft 31 extends from the feed barrel B30 and then extends into the feed barrel A20; a feed bin 32 is also provided on the feed barrel B30;

[0043] When the material entering the feed bin 32 enters the feed barrel B30 , it enters the feed barrel A20 under the action of the dragon shaft 31 , and the material in the feed barrel A20 enters the screening drum 10 under the action of the dragon shaft 31 .

[0044] See also Figure 1 and Figure 2 The feed barrel A20 is rotatably mounted on the upper end cover 11, and the feed barrel A20 is also connected to the driving mechanism; the lower end of the feed barrel A20 is blocked, and a material port 21 is opened on the cylindrical surface near the lower end; when the driving mechanism drives the feed barrel A20 to rotate, when the material port 21 rotates to the lower position, the material in the feed barrel A20 will be discharged into the screening roller 10 for intermittent material discharge.

[0045] Furthermore, a bearing seat is installed at the center of the upper end cover 11, and the feed barrel A20 is installed with the bearing seat through the bearing; a battery-powered motor is fixed on the upper end cover 11, and the output shaft of the battery-powered motor is connected to the feed barrel A20 through the corresponding pulley and belt to form a driving mechanism. The battery-powered motor can control the frequency of the feed barrel A20 rotation. The battery-powered motor is used because the screening drum 10 is rotating, and the wired power supply method is used, which is prone to cable entanglement.

[0046] In this embodiment, the middle of the feed barrel A20 is gradually provided with a disc 33, and the disc 33 is pressed against the end face of the bearing seat through the ball 34; an annular groove is provided on the disc 33 and the bearing seat, and the ball 34 is placed in the annular groove (the annular groove has the same center line as the disc 33, the bearing seat, and the screening drum 10, and when the disc 33 rotates, the ball 34 rolls in the annular groove). The advantages of this design are: on the one hand, since the feed barrel A20 is pressed against the bearing seat through the disc 33 and the ball 34, a positioning is formed for the feed barrel A20 to prevent the feed barrel A20 from sliding downward; on the other hand, through the bearing, the disc 33 and the ball 34, compared with the installation of only the bearing, it is more conducive to the smooth rotation of the feed barrel A20 (equivalent to the feed barrel A20 having two rotating parts in the axial direction, and the two rotating parts are compared with one rotating part. When subjected to radial force, the feed barrel A20 is not easy to deviate from the center line of the screening drum 10, so the rotation is smoother).

[0047] See also Figure 3 and Figure 4 A height and inclination adjustable mechanism is provided below the feed barrel B30, so that the feed barrel B30 can be smoothly inserted into the feed barrel A20.

[0048] Specifically, the height and inclination adjustable mechanism includes an upper bottom plate 41 and a lower base frame 42; an upper bottom plate 41 is welded and fixed near the upper end and the lower end of the feed barrel B30; the four corners of the upper bottom plate 41 are supported on the lower base frame 42 by support rods 43; the four corners of the upper bottom plate 41 are provided with long waist-shaped holes, the upper end of the support rod 43 is shoulder-shaped, and the upper end of the support rod 43 is inserted into the long waist-shaped hole; the lower end of the support rod 43 is threadedly matched with the base frame 43, and is locked by a nut;

[0049] It should be noted that since the screening drum 10 is arranged at an angle (the feed drum A20 is installed on the screening drum 10), when the feed drum B30 needs to be inserted into the feed drum A20, it may be necessary to use a trolley for lifting so that the feed drum B30 can also be inserted at an angle; however, the present solution can achieve insertion through a height and inclination adjustable mechanism without the need for a trolley.

[0050] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A feeding mechanism for a waste incineration screening device, characterized in that: It includes a feeding cylinder A (20) and a feeding cylinder B (30); The screening device comprises a screening drum (10) which is arranged obliquely, the upper drum opening of the screening drum (10) being closed by an upper end cover (11), and a feed drum A (20) is provided through the upper end cover (11); A dragon shaft (31) is installed in the feed barrel B (30), one end of the feed barrel B (30) extends into the feed barrel A (20), and the end of the dragon shaft (31) extends from the feed barrel B (30) and then extends into the feed barrel A (20); a feed bin (32) is also provided on the feed barrel B (30); When the material from the feed bin (32) enters the feed barrel B (30), it enters the feed barrel A (20) under the action of the dragon shaft (31), and the material in the feed barrel A (20) enters the screening drum (10) under the action of the dragon shaft (31).

2. The feeding mechanism of the waste incineration screening equipment according to claim 1 is characterized in that: The feed barrel A (20) is rotatably mounted on the upper end cover (11), and the feed barrel A (20) is also connected to the driving mechanism; The lower end of the feed cylinder A (20) is blocked, and a feed port (21) is opened on the cylindrical surface near the lower end; When the driving mechanism drives the feed drum A (20) to rotate, when the material port (21) rotates to the lower position, the material in the feed drum A (20) will be discharged into the screening drum (10) for intermittent material discharge.

3. The feeding mechanism of the waste incineration screening equipment according to claim 2 is characterized in that: A bearing seat is installed at the center of the upper end cover (11), and the feed cylinder A (20) is installed in the bearing seat through the bearing. A battery-powered motor is fixed on the upper end cover (11), and the output shaft of the battery-powered motor is connected to the feed barrel A (20) through corresponding pulleys and belts to form a driving mechanism.

4. The feeding mechanism of the waste incineration screening equipment according to claim 3 is characterized in that: The feeding cylinder A (20) is gradually provided with a disc (33) at the outside of the middle part, and the disc (33) is pressed against the end surface of the bearing seat through a ball (34); An annular groove is formed on the disc (33) and the bearing seat, and a ball (34) is placed in the annular groove.

5. The feeding mechanism of the waste incineration screening equipment according to claim 1 is characterized in that: A height and inclination adjustable mechanism is provided below the feed barrel B (30) so that the feed barrel B (30) can be smoothly inserted into the feed barrel A (20).

6. The feeding mechanism of the waste incineration screening equipment according to claim 5 is characterized by: The height and inclination adjustable mechanism comprises an upper base plate (41) and a lower base frame (42); An upper bottom plate (41) is welded and fixed near the upper end and the lower end of the feed barrel B (30); the four corners of the upper bottom plate (41) are supported on the lower base frame (42) by support rods (43); The four corners of the upper base plate (41) are provided with long waist-shaped holes, the upper end of the support rod (43) is shoulder-shaped, and the upper end of the support rod (43) is inserted into the long waist-shaped hole; the lower end of the support rod (43) is threadedly matched with the lower base frame (42) and is locked by a nut.

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