A lime feeder

Abstract

The utility model discloses a lime feeder, which relates to the technical field of material adding equipment, including a fixed frame, a conical hopper, a star feeder, a conveyor belt and at least one vibrator; the conical hopper is fixedly arranged on the fixed frame; the conical hopper has a large mouth end and a small mouth end, and the small mouth end is lower than the large mouth end; the input port of the star feeder is connected and communicated with the small mouth end; the output port of the star feeder is located above the conveyor belt; a vibrator is fixedly arranged on at least one outer side wall of the conical hopper. By adding a star feeder below the conical hopper, it can realize efficient, uniform, continuous and stable addition amount control; and the vibrator arranged on the conical hopper can realize the vibrating effect on the internal material, reduce the occurrence of blockage, and thus improve production efficiency and safety.

Description

Technical Field

[0001] The utility model relates to the technical field of material adding equipment, in particular to a lime feeder. Background Art

[0002] The sulfur melting process in the sulfur-making acid plant is a process in which sulfur is produced by using sulfur to melt sulfur. During the melting process, lime needs to be added to the sulfur melting tank for neutralization to reduce corrosion to the equipment. Since the acidity and alkalinity fluctuations in the sulfur melting tank cannot be too large, it is necessary to ensure that the lime powder is evenly added to the sulfur melting tank.

[0003] The existing lime dosing device has the following disadvantages:

[0004] (1) There is no adjustment control method for the lime hopper discharge port, resulting in the uncontrollable addition amount and a large range of variation;

[0005] (2) Lime powder has a fine particle size and is easy to absorb air and moisture to become compacted. It has poor fluidity and the feed port of the hopper is easily blocked. Utility Model Content

[0006] The utility model aims to provide a lime feeder to solve the problems existing in the above-mentioned prior art, realize uniform and stable addition amount control, reduce the occurrence of blockage, and improve production efficiency and safety.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a lime feeder, comprising a fixed frame, a conical hopper, a star feeder, a conveyor belt and at least one rapper; the conical hopper is fixedly arranged on the fixed frame; the conical hopper has a large mouth end and a small mouth end, and the small mouth end is lower than the large mouth end; the input port of the star feeder is connected and communicated with the small mouth end; the output port of the star feeder is located above the conveyor belt; and the rapper is fixedly arranged on at least one outer side wall of the conical hopper.

[0009] Preferably, a frequency converter is connected to the motor of the star-shaped feeder.

[0010] Preferably, one of the rappers is fixedly disposed on two opposite outer side walls of the conical hopper, respectively.

[0011] Preferably, the conveyor belt is driven to rotate by a conveyor belt driving mechanism; the star feeder, the conveyor belt driving mechanism and each of the rappers are connected to a distributed control system.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The lime feeder provided by the utility model can realize efficient, uniform, continuous and stable addition amount control by adding a star feeder under the conical hopper; and the vibrator arranged on the conical hopper can realize the vibration effect on the internal material, reduce the occurrence of blockage, and thus improve production efficiency and safety.

[0014] Furthermore, the frequency converter provided on the motor of the star feeder can realize accurate speed control of the star feeder, thereby ensuring stability and uniformity during material conveying.

[0015] Furthermore, vibrators are provided on two opposite outer side walls, which can achieve sufficient vibration of the material, reduce the phenomenon of material bridging, prevent material compaction before unloading, and reduce blockage.

[0016] Furthermore, a distributed control system is used for control to improve the automation level of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the lime feeder provided by the utility model;

[0019] Figure 2 Schematic diagram of the distributed control system controlling the lime feeder.

[0020] In the figure: 100-lime feeder; 1-fixed frame; 2-conical hopper; 3-star feeder; 4-conveyor belt; 5-vibrator. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model aims to provide a lime feeder to solve the problems existing in the prior art, realize uniform and stable addition amount control, reduce the occurrence of blockage, and improve production efficiency and safety.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1

[0025] This embodiment provides a lime feeder 100, such as Figure 1 and Figure 2 As shown, it includes a fixed frame 1, a conical hopper 2, a star feeder 3, a conveyor belt 4 and at least one rapper 5; the conical hopper 2 is fixedly arranged on the fixed frame 1; the conical hopper 2 has a large mouth end and a small mouth end, and the small mouth end is lower than the large mouth end; the input port of the star feeder 3 is connected and communicated with the small mouth end; the output port of the star feeder 3 is located above the conveyor belt 4; a rapper 5 is fixedly arranged on at least one outer side wall of the conical hopper 2. By adding the star feeder 3 below the conical hopper 2, it can realize efficient, uniform, continuous and stable addition amount control; and the rapper 5 arranged on the conical hopper 2 can realize the rapping effect on the internal material, reduce the occurrence of blockage, and thus improve production efficiency and safety.

[0026] Among them, about the conical hopper 2:

[0027] In the optional scheme of this embodiment, it is more preferred that a vibrator 5 is fixedly provided on the two opposite outer side walls of the conical hopper 2. The vibrator 5 is provided on the two opposite outer side walls, which can fully vibrate the material, reduce the phenomenon of material bridging, prevent the material from being compacted before unloading, and reduce the blockage phenomenon.

[0028] Among them, about star feeder 3:

[0029] In the optional scheme of this embodiment, it is more preferred that a frequency converter is connected to the motor of the star feeder 3. The frequency converter provided on the motor of the star feeder 3 can realize accurate speed control of the star feeder 3 and ensure stability and uniformity during material conveying.

[0030] Specifically, a star-shaped feeder 3 is arranged below the conical hopper 2, and the diameter of the original feed opening is changed to facilitate long-term and uniform addition of lime.

[0031] Specifically, the model of the star-shaped feeder 3 may be YJD02.

[0032] Among them, regarding automation control:

[0033] Among the optional solutions of this embodiment, it is more preferred that Figure 2As shown, the conveyor belt 4 is driven to rotate by the conveyor belt 4 driving mechanism; the star feeder 3, the conveyor belt 4 driving mechanism and each rapper 5 are all connected to the distributed control system. The distributed control system is used for control to improve the automation of the equipment.

[0034] Specifically, the inverter is also connected to the distributed control system, and after the initial startup, the inverter automatically runs at the set percentage, such as Figure 2 5% etc. shown in .

[0035] Specifically, the star feeder 3 and each rapper 5 are controlled by on-site start-stop and distributed control system (DCS) to achieve precise adjustment of feeding amount and vibration frequency; the DCS system can control the synchronous activation and deactivation of the rapper 5, such as Figure 2 shown.

[0036] Specifically, a timed opening and closing function can be added through the DCS system to dissipate heat from the motor of the star feeder 3 .

[0037] Specifically, the rapper 5 is started only when the star-shaped feeder 3 is feeding, so as to prevent the material from being compacted when the material is not fed.

[0038] Specifically, the DCS system has a human-machine interface, and the operator can set the running duration and stop duration of the lime feeder 100 in a single cycle on the human-machine interface. The DCS system controls "stop time to automatic activation" and "duration to automatic deactivation", such as Figure 2 shown.

[0039] Specifically, when the driving mechanism of the conveyor belt 4 is in a stopped state, the star feeder 3 and the vibrator 5 cannot be started. Figure 2 "Cannot be enabled when belt is stopped" in.

[0040] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A lime feeder, characterized in that: It includes a fixed frame, a conical hopper, a star feeder, a conveyor belt and at least one rapper; The conical hopper is fixedly arranged on the fixing frame; the conical hopper has a large opening end and a small opening end, and the small opening end is lower than the large opening end; The input port of the star-shaped feeder is connected and communicated with the small-mouth end; the output port of the star-shaped feeder is located above the conveyor belt; The rapper is fixedly provided on at least one outer side wall of the conical hopper.

2. The lime feeder according to claim 1, characterized in that: The motor of the star-shaped feeder is connected with a frequency converter.

3. The lime feeder according to claim 1, characterized in that: One rapper is fixedly provided on two opposite outer side walls of the conical hopper respectively.

4. The lime feeder according to claim 1, characterized in that: The conveyor belt is driven to rotate by a conveyor belt driving mechanism; The star-shaped feeder, the conveyor belt driving mechanism and each of the rappers are all connected to a distributed control system.

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