Middle feeding granulator

Abstract

The utility model relates to the technical field of granulation, in particular to a middle feeding granulator which comprises a spiral shaft outer barrel, the spiral shaft outer barrel comprises a discharging section, a feeding section and a driving section, and the feeding section is arranged between the discharging section and the driving section; the feeding section is provided with a feeding hopper, the feeding hopper is communicated with an inner cavity of the feeding section, and the feeding hopper is arranged on the upper side of the feeding section; an electric screw rod is arranged in the feeding hopper, and the two ends of the electric screw rod penetrate through the side wall of the feeding hopper and are rotationally matched with the side wall of the feeding hopper; the feeding hopper is further provided with a guide column, and the guide column is parallel to the axis of the electric screw rod. The electric screw rod is provided with a sliding rod in a matched mode, and the sliding rod is in sliding fit with the guide column. The two ends of the sliding rod extend to the inner walls of the two sides of the feeding hopper. Fly ash is evenly distributed, clamping stagnation is prevented, the compression efficiency of the pelletizer for compressing the fly ash is guaranteed, and the quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of granulation technology, and in particular to a fly ash granulator. Background Technology

[0002] A fly ash granulator is a device used to process fly ash into granular materials. Its core purpose is to improve the physical properties of fly ash through physical or chemical methods, facilitating subsequent resource utilization or safe disposal. The granulator uses an extrusion screw to compress fly ash into granules.

[0003] When fly ash is processed by the extrusion screw of the fly ash granulator, the fly ash added to the feed inlet is prone to bridging and blockage. This phenomenon not only affects the discharge efficiency, but may also lead to unstable particle quality. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution;

[0007] A granulator with central feed, including a screw shaft and outer cylinder.

[0008] The spiral shaft outer cylinder includes a discharge section, a feed section and a drive section, wherein the feed section is disposed between the discharge section and the drive section;

[0009] The feeding section is equipped with a feeding hopper, which is connected to the inner cavity of the feeding section and is located on the upper side of the feeding section.

[0010] An electric screw is provided in the feed hopper, and both ends of the electric screw pass through the side wall of the feed hopper and are rotatably engaged with the side wall of the feed hopper;

[0011] The feed hopper is also equipped with a guide column, which is arranged parallel to the axis of the electric screw.

[0012] The electric screw is equipped with a sliding rod, which is slidably engaged with the guide post;

[0013] The two ends of the slide rod extend to the inner walls of the feed hopper on both sides.

[0014] The above design first places the feed hopper on the upper side of the feed section, allowing fly ash to smoothly slide into the inner cavity of the feed section, ensuring the material is added smoothly to the granulator for compression. The motor of the electric screw is a periodic reciprocating servo motor. The electric screw drives the slide bar to slide back and forth cyclically, which can agitate the fly ash in the feed hopper. This driving method allows the slide bar to effectively agitate the fly ash in the feed hopper, ensuring uniform distribution of fly ash, preventing jamming, and ensuring the granulator's compression efficiency and stable quality of fly ash compression.

[0015] Preferably, the slide bar is provided with upright columns, and at least four columns are arranged along the extension direction of the slide bar; the upper end of the column is sharpened. The sharpened upper end of the column can help to better cut and move the fly ash, break the bridging formed by the fly ash, and make the fly ash flow more easily in the feed hopper.

[0016] Preferably, support frames are provided on both sides of the feed hopper, and bearings are installed in both support frames, with a gap between the bearings and the feed hopper; the two ends of the electric screw are disposed in the two bearings. This ensures that the bearings will not be jammed by fly ash in the feed hopper, and ensures that the electric screw can rotate smoothly for a long time in the fly ash material.

[0017] Preferably, the electric screw is positioned in the middle of the feed hopper; at least two guide posts are provided, symmetrically distributed on both sides of the electric screw. The two guide posts can evenly distribute the load, thereby improving the stability of the slide bar movement, preventing the slide bar from jamming or deflecting, and ensuring that the slide bar can smoothly cut and move fly ash.

[0018] Preferably, the feed hopper is configured with an opening that gradually widens from bottom to top, and the feed hopper is formed by four side plates; the two side plates on which the electric screw is mounted are vertically arranged, while the other two side plates are inclined. The other two inclined side plates facilitate the entry of fly ash material and guide the material to flow downwards.

[0019] Preferably, scrapers are provided at both ends of the slide bar, and the scrapers are fitted into the inclined side plate. The scrapers can effectively cut and move the material between the slide bar and the side plate, preventing the material from accumulating on the inclined side plate and further reducing the risk of blockage.

[0020] Preferably, the feeding section is equipped with a fixing frame, which is located below the feeding hopper. Fixing the fixing frame below the feeding hopper enhances the overall structural stability of the feeding hopper and prevents excessive vibration or displacement when the material slides up and down. This helps improve the operational safety and reliability of the equipment.

[0021] Preferably, the upper side of the feed hopper is provided with a flange, and at least eight through holes are arranged on the flange. The flange design on the upper side of the feed hopper can effectively prevent material from overflowing during the feeding process and provide a stable interface for connection or docking with other fly ash adding equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the external structure of the fly ash granulator of this utility model;

[0024] Figure 2 This is a side view of the feeding section of this utility model.

[0025] Figure 3 This is a schematic diagram of the feeding section of this utility model from another side. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in less than one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0030] Example 1

[0031] refer to Figure 1 and Figure 2 A granulator with central feed, including a screw shaft and outer cylinder.

[0032] The outer cylinder of the spiral shaft includes a discharge section 1, a feed section 2 and a drive section 3, with the feed section 2 located between the discharge section 1 and the drive section 3;

[0033] The feeding section 2 is equipped with a feeding hopper 4, which is connected to the inner cavity of the feeding section 2 and is located on the upper side of the feeding section 2.

[0034] An electric screw rod 5 is installed in the feed hopper 4. Both ends of the electric screw rod 5 pass through the side wall of the feed hopper 4 and are rotatably engaged with the side wall of the feed hopper 4.

[0035] The feed hopper 4 is also equipped with a guide post 7, which is arranged parallel to the axis of the electric screw 5;

[0036] The electric screw rod 5 is equipped with a slide rod 6, which is in sliding engagement with the guide post 7;

[0037] The two ends of the slide bar 6 extend to the inner walls of the feed hopper 4 on both sides.

[0038] The above design first places the feed hopper 4 on the upper side of the feed section 2, allowing fly ash to smoothly slide into the inner cavity of the feed section 2, ensuring the smooth downward flow of material into the granulator for compression. The motor of the electric screw 5 is a periodic reciprocating servo motor. The electric screw 5 drives the slide bar 6 to slide back and forth cyclically, which can agitate the fly ash in the feed hopper 4. This driving method allows the slide bar 6 to effectively agitate the fly ash in the feed hopper 4, making the fly ash evenly distributed, preventing jamming, and ensuring the compression efficiency and quality stability of the fly ash compressed by the granulator.

[0039] The slide bar 6 is equipped with upright columns 61, and at least four columns 61 are arranged along the extension direction of the slide bar 6; the upper end of the column 61 is sharpened. The sharpened upper end of the column 61 can help to cut and move the fly ash better, break the bridging formed by the fly ash, and make the fly ash flow more easily in the feed hopper 4.

[0040] In use, the servo motor is connected to the electric screw rod 5, driving the electric screw rod 5 to rotate in both directions periodically. The electric screw rod 5 drives the slide rod 6 to slide back and forth in a cycle, which can move the fly ash in the feed hopper 4. The sharpened design of the upper end of the column 61 can help to cut and move the fly ash better, destroy the bridging formed by the fly ash, and make the fly ash flow more easily in the feed hopper 4. This driving method enables the slide rod 6 to effectively move the fly ash in the feed hopper 4, so that the fly ash is evenly distributed and prevents jamming.

[0041] Example 2

[0042] refer to Figure 2 and Figure 3This is the second embodiment of the present invention, which is based on the previous embodiment.

[0043] Support frames 41 are provided on both sides of the feed hopper 4, and bearings 8 are installed in both support frames 41. There is a gap between the bearings 8 and the feed hopper 4. The electric screw rod 5 is installed in the two bearings 8 at both ends. This ensures that the bearings 8 will not be stuck by the fly ash in the feed hopper 4, and ensures that the electric screw rod 5 can rotate smoothly for a long time in the fly ash material.

[0044] The electric screw rod 5 is located in the middle of the feed hopper 4; it is equipped with at least two guide posts 7, which are symmetrically distributed on both sides of the electric screw rod 5. The two guide posts 7 can evenly distribute the load, thereby improving the stability of the slide rod 6 movement. The slide rod 6 will not jam or deviate, ensuring that the slide rod 6 can smoothly cut and move fly ash.

[0045] The feed hopper 4 is designed with an opening that gradually widens from bottom to top. The feed hopper 4 is formed by four side plates. Two side plates of the feed hopper 4 that support the electric screw rod 5 are set vertically, while the other two side plates are set at an angle. The other two angled side plates facilitate the entry of fly ash material and guide the material to flow downwards.

[0046] Scrapers 62 are provided at both ends of the slide bar 6, and the scrapers 62 are fitted into the inclined side plates. The scrapers 62 can effectively cut and move the material between the slide bar 6 and the side plates, preventing the material from accumulating on the inclined side plates and further reducing the risk of blockage.

[0047] The feeding section 2 is equipped with a fixing frame 9, which is located below the feeding hopper 4. The fixing frame 9, fixed below the feeding hopper 4, enhances the overall structural stability of the feeding hopper 4 and prevents excessive vibration or displacement when materials slide up and down. This helps improve the operational safety and reliability of the equipment.

[0048] The upper side of the feed hopper 4 is provided with a flange 42, on which at least 8 through holes are arranged. The flange 42 on the upper side of the feed hopper 4 can effectively prevent material from overflowing during the feeding process and provide a stable interface for connection or docking with other fly ash adding equipment.

[0049] In use, the feed hopper 4 is equipped with support frames 41 on both sides, through which bearings 8 are installed, creating a gap between the bearings 8 and the feed hopper 4 to ensure that the bearings 8 are not stuck by fly ash in the feed hopper 4. Two guide posts 7 are symmetrically distributed on both sides of the electric screw rod 5, which can evenly distribute the load, thereby improving the stability of the slide rod 6 and ensuring that the slide rod 6 can smoothly cut and move the fly ash. Two inclined side plates facilitate the entry of fly ash material. The upper flange 42 of the feed hopper 4 provides a stable interface, effectively preventing material from overflowing during the feeding process. The scraper 62 can effectively cut and move the material between the slide rod 6 and the side plates, preventing material from accumulating on the inclined side plates. The fixing frame 9 is fixed below the feed hopper 4, which can enhance the overall structural stability of the feed hopper 4.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A granulator with center-feed, comprising a screw shaft and an outer cylinder, characterized in that: The spiral shaft outer cylinder includes a discharge section, a feed section and a drive section, wherein the feed section is disposed between the discharge section and the drive section; The feeding section is equipped with a feeding hopper, which is connected to the inner cavity of the feeding section and is located on the upper side of the feeding section. An electric screw is provided in the feed hopper, and both ends of the electric screw pass through the side wall of the feed hopper and are rotatably engaged with the side wall of the feed hopper; The feed hopper is also equipped with a guide column, which is arranged parallel to the axis of the electric screw. The electric screw is equipped with a sliding rod, which is slidably engaged with the guide post; The two ends of the slide rod extend to the inner walls of the feed hopper on both sides.

2. The granulator with central feeding according to claim 1, characterized in that: The slide bar is provided with vertical columns, and at least four columns are arranged along the extension direction of the slide bar; The upper end of the column is sharpened.

3. The granulator with central feeding according to claim 1, characterized in that: Support frames are provided on both sides of the feed hopper, and bearings are provided in both support frames. The bearings have a gap with the feed hopper. The electric screw is mounted in two bearings at both ends.

4. The granulator with central feeding according to claim 1, characterized in that: The electric screw is located in the middle of the feed hopper; At least two guide posts are provided, and the at least two guide posts are symmetrically distributed on both sides of the electric screw rod.

5. The granulator with central feeding according to claim 1, characterized in that: The feed hopper is configured such that the opening gradually widens from bottom to top, and the feed hopper is formed by four side plates surrounding it. The feed hopper has two vertically mounted side plates supporting the electric screw rod, and the other two side plates are mounted at an angle.

6. The granulator with center-feed according to claim 5, characterized in that: The slide bar is provided with scrapers at both ends, and the scrapers are fitted to the inclined side plate.

7. The granulator with center-feed according to claim 1, characterized in that: The feeding section is equipped with a fixing frame, which is located below the feeding hopper.

8. The granulator with center-feed according to claim 1, characterized in that: The upper side of the feed hopper is provided with a flange, and at least 8 through holes are arranged on the flange.

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