CN217746922U

CN217746922U - Automatic water replenishing system for raw materials of extruded granular fertilizer

Info

Publication number: CN217746922U
Application number: CN202221360302.6U
Authority: CN
Inventors: 周少华; 高向南; 孙睿; 杨兵; 郭翔宇; 古超群
Original assignee: Tongling Guoxing Chemical Co ltd
Current assignee: Tongling Guoxing Chemical Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-11-08
Anticipated expiration: 2032-06-01

Abstract

The utility model belongs to the technical field of fertilizer production equipment, especially, extrusion granule fertilizer raw materials automatic water supply system. The utility model comprises a moisture detector for detecting the moisture of the raw material, a metering scale for weighing the raw material, a water replenishing pipe and a controller; the metering scale is positioned at the feed end of the scraper conveyor, the water replenishing pipe is provided with a flowmeter, an electromagnetic valve and an adjusting valve, and the water outlet of the water replenishing pipe is connected with the feed end of the stirrer; the metering scale, the flowmeter, the electromagnetic valve and the regulating valve are in signal connection with the controller. The utility model discloses a set up moisture detector, weigher and controller etc. and not only realized automatic ration moisturizing in order to satisfy the demand of production process to raw materials moisture, and this system can automatic cut off the water system putty that leads to the fact in order to avoid the system water content too high.

Description

Automatic water replenishing system for extruded granular fertilizer raw materials

Technical Field

The utility model belongs to the technical field of fertilizer production equipment, especially, relate to an extrusion granular fertilizer raw materials automatic water supply system.

Background

The production of the compound fertilizer adopts more processes at present, namely an ammonia-acid method granulation process, a steam drum granulation process, a slurry spraying granulation process, a high tower granulation process and an extrusion granulation process; the raw material moisture is required to be controlled in extrusion granulation, and a proper granulation raw material water distribution ratio is generally required to be found in a range of 1.0-2.0 according to different raw material formulas, but the raw materials have different moisture contents, and the production requirements are difficult to meet by only adjusting the raw material distribution ratio to control the moisture content of mixed raw materials.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the above-mentioned prior art, for this reason, the utility model provides an extrusion granular fertilizer raw materials automatic water supply system. The utility model discloses realize automatic quantitative moisturizing and can avoid the putty of system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic water replenishing system for extruded granular fertilizer raw materials comprises a scraper conveyor and a stirrer for mixing raw materials, wherein the discharge end of the scraper conveyor is connected with the feed end of the stirrer; the metering scale is positioned at the feed end of the scraper conveyor, the water replenishing pipe is provided with a flowmeter, an electromagnetic valve and an adjusting valve, and the water outlet of the water replenishing pipe is connected with the feed end of the stirrer; the metering scale, the flowmeter, the electromagnetic valve and the regulating valve are in signal connection with the controller.

Preferably, the mixer is a twin-shaft mixer.

Preferably, the controller is a DCS control system (distributed control system).

Preferably, the distance between the electromagnetic valve and the water outlet end of the water replenishing pipe is smaller than the distance between the flowmeter and the regulating valve and the water outlet end of the water replenishing pipe.

The utility model has the advantages that:

(1) The utility model discloses a set up moisture detector, weigher and controller etc. and not only realized automatic ration moisturizing in order to satisfy the demand of production process to raw materials moisture, and this system can automatic cut off the water system putty that leads to the fact in order to avoid the system water content too high.

(2) The utility model discloses can detect the moisture data that water content and raw materials hoped to reach after mixing according to the raw materials and carry out the moisturizing automatically in to the raw materials, realize dynamic moisturizing in order to reach the optimal raw materials for production moisture value, can be simultaneously according to the real-time total flow control moisturizing of raw materials and stop the moisturizing to prevent that the raw materials is expected absolutely or the material volume still continues the moisturizing when less and makes the too big putty that causes of raw materials moisture.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a flow chart of the present invention.

The notations in the figures have the following meanings:

1-scraper conveyer, 2-stirrer, 3-moisture detector, 4-weigher, 5-water supply pipe, 6-controller, 7-electromagnetic valve, 8-regulating valve and 9-flowmeter.

Detailed Description

As shown in fig. 1-2, an automatic water replenishing system for extruded granular fertilizer raw materials comprises a scraper conveyor 1 and a stirrer 2 for mixing raw materials, wherein the discharge end of the scraper conveyor 1 is connected with the feed end of the stirrer 2, and the system comprises a moisture detector 3 for detecting moisture of raw materials, a metering scale 4 for weighing raw materials, a water replenishing pipe 5 and a controller 6; the metering scale 4 is positioned at the feed end of the scraper conveyor 1, the flow meter 9, the electromagnetic valve 7 and the regulating valve 8 are arranged on the water replenishing pipe 5, and the water outlet of the water replenishing pipe 5 is connected with the feed end of the stirrer 2; the metering scale 4, the flowmeter 9, the electromagnetic valve 7 and the regulating valve 8 are in signal connection with the controller 6.

Specifically, the mixer 2 is a double-shaft mixer 2 in order to improve the raw material mixing efficiency of the system. The controller 6 is a DCS control system.

The distance between the electromagnetic valve 7 and the water outlet end of the water replenishing pipe 5 is smaller than the distance between the flowmeter 9 and the water outlet end of the water replenishing pipe 5 and the regulating valve 8, so that the water quantity can be controlled to flow into the stirring machine 2 in time.

The operation of the device is described in detail below with reference to the drawings in the examples.

(1) Before the system is started, firstly, a moisture detector 3 is used for detecting moisture in each raw material to obtain A2, B2, C2, D2 and the like, and then the A2, B2, C2, D2 and the like are input into a DCS (distributed control System); and manually inputting a moisture set value F2 into the DCS, and calculating the values G, F1 and E by the DCS according to the following formulas. After the system is started, the program feeds the calculated E value back to the regulating valve 8 and the flowmeter 9, and the water adding quantity E is automatically adjusted in real time to ensure that F2 is constant, so that the water content of the raw materials meets the production requirement.

G＝A1+B1+C1+D1；

F1＝(A1*A2+B1*B2+C1*C2+D1*D2)/(A1+B1+C1+D1)；

F2＝(A1*A2+B1*B2+C1*C2+D1*D2+E)/(A1+B1+C1+D1+E)；

From the F2 calculation formula:

E＝[(A1*A2+B1*B2+C1*C2+D1*D2)-(A1+B1+C1+D1)*F2]/(F2-1)

note: a1, B1, C1 and D1 are real-time flow data of the metering scale 4, and G is the sum of real-time flow of all raw materials; a2, B2, C2 and D2 are water content data detected by each raw material and need to be manually input into a DCS control system; f2 is the desired moisture data after the raw materials are mixed by the double-shaft mixer 2; and E is the real-time water flow data of the flowmeter.

(2) Interlocking the G numerical value with the electromagnetic valve 7; when G is more than or equal to 2 tons/hour, the electromagnetic valve 7 is opened, and water is added into the double-shaft stirrer 2; when G < 2 tons/hour, the electromagnetic valve 7 is closed, and water is stopped being added into the double-shaft stirrer 2, so that the situation that water cannot be timely stopped when the material is cut off, and the material is blocked due to the fact that the water content of the system is too high is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an extrusion granule fertilizer raw materials automatic water supply system, includes scraper conveyor (1) and mixer (2) that are used for mixing the raw materials, the discharge end of scraper conveyor (1) is connected its characterized in that with the feed end of mixer (2): the system comprises a moisture detector (3) for detecting moisture of raw materials, a metering scale (4) for weighing the raw materials, a water supplementing pipe (5) and a controller (6); the metering scale (4) is positioned at the feed end of the scraper conveyor (1), the water replenishing pipe (5) is provided with a flowmeter (9), an electromagnetic valve (7) and an adjusting valve (8), and the water outlet of the water replenishing pipe (5) is connected with the feed end of the stirrer (2); the metering scale (4), the flowmeter (9), the electromagnetic valve (7) and the regulating valve (8) are in signal connection with the controller (6).

2. The extruded granular fertilizer raw material automatic water replenishing system of claim 1, wherein: the stirrer (2) is a double-shaft stirrer (2).

3. The extruded granular fertilizer raw material automatic water replenishing system of claim 1, wherein: the controller (6) is a DCS control system.

4. The extruded granular fertilizer raw material automatic water replenishing system of claim 1, wherein: the distance between the electromagnetic valve (7) and the water outlet end of the water replenishing pipe (5) is smaller than the distance between the flowmeter (9) and the regulating valve (8) and the water outlet end of the water replenishing pipe (5).