A uniform dosing device for viscous materials and a method thereof

Abstract

The application provides a viscous material uniform batching device and method, relates to the technical field of cold briquetting, and comprises a conveying belt and a screw feeder. The screw feeder is arranged above the conveying belt. The screw feeder comprises a base and a material conveying pipe. The base is arranged above the conveying belt. The material conveying pipe is arranged above the base and is internally rotatably provided with a screw shaft. One side of the top of the material conveying pipe is provided with a collecting hopper. The other side of the bottom of the material conveying pipe is provided with a discharge port. The collecting hopper is in communication with the material conveying pipe. The discharge port is in communication with the material conveying pipe. The output end of the discharge port faces the conveying belt. The application makes the screw feeder and changes the batching mode. The binder and the heat generating agent in the collecting hopper are conveyed to the discharge port and uniformly conveyed in a linear shape to the surface of the material on the conveying belt. The subsequent stirring is matched to achieve the purpose of uniform batching and improve the digestion effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cold briquetting production, and in particular to a uniform feeding device for viscous materials and a method thereof. BACKGROUND

[0002] The main raw materials for producing cold briquetting are converter mud, steelmaking dust, furnace dust and machine head dust, etc. containing iron materials, plus a certain proportion of lime and binders and heat generating agents, which are cold-pressed into balls by a ball press. Specifically, a certain proportion of converter mud and steelmaking dust and furnace dust are mixed and digested on the ground by a forklift. After the water is consumed, the belt feeding is used to feed the machine head dust and lime into the digestion bin for digestion. After digestion, the belt feeding is used to feed the binders and heat generating agents into the double-shaft mixer for uniform mixing. The mixer is then fed into the ball press by a bucket elevator, and the cold briquetting is formed by the ball press.

[0003] Due to the high water content and high viscosity of the converter mud, and the unevenness of the belt feeding itself, the materials are often in the form of clumps and piles, which cannot be fed in a linear form. As a result, it is difficult to uniformly mix the steelmaking dust, furnace dust, machine head dust, lime, binders and heat generating agents, resulting in unqualified cold briquetting with high powder rate and low compressive strength, which leads to high dust and fire during the use of the steelmaking converter and the ironmaking blast furnace. Therefore, the present application proposes a uniform feeding device for viscous materials and a method thereof to solve the problems in the prior art. SUMMARY

[0004] To solve the above problems, the present application provides a uniform feeding device for viscous materials and a method thereof. The device transports the binders and heat generating agents in the hopper to the discharge port and uniformly feeds them in a linear form to the surface of the material on the conveying belt, which cooperates with the subsequent mixing to achieve uniform feeding and improve the digestion effect.

[0005] To achieve the purpose of the present application, the following technical solutions are used: a uniform feeding device for viscous materials, comprising a conveying belt and a screw feeder, wherein the screw feeder is arranged above the conveying belt, the screw feeder comprises a base and a material conveying pipe, the base is installed above the conveying belt, the material conveying pipe is arranged above the base, and a screw shaft is rotatably arranged in the material conveying pipe.

[0006] One side of the top of the material conveying pipe is provided with a hopper, the other side of the bottom of the material conveying pipe is provided with a discharge port, the hopper is in communication with the material conveying pipe, the discharge port is in communication with the material conveying pipe, and the output end of the discharge port faces the conveying belt.

[0007] Further improvement lies in that one side of the top of the base is provided with a variable frequency motor, one side of the spiral rotating shaft extends out of the material conveying pipe, and the output end of the variable frequency motor is connected with one side of the spiral rotating shaft through a flange.

[0008] A method for uniformly mixing viscous materials, comprising the following steps:

[0009] Step one: mix and digest the converter mud, steelmaking dust and pre-dust on the ground by a forklift;

[0010] Step two: divide the binder and the heating agent into two equal parts, one part is added to the auxiliary material bin for later use, and the other part is added to the material collecting hopper;

[0011] Step three: add the converter mud, steelmaking dust and pre-dust to the conveying belt, and simultaneously add the machine head dust and lime;

[0012] Step four: convey the materials through the conveying belt, simultaneously, start the spiral feeder, convey the binder and the heating agent in the material collecting hopper to the discharge port, and distribute the discharged materials on the surface of the materials on the conveying belt;

[0013] Step five: convey the materials to the mixer through the conveying belt, mix and stir the materials, and then convey the materials to the digestion bin for digestion;

[0014] Step six: after the digestion is completed, mix and stir the materials in the digestion bin and the binder and the heating agent in the auxiliary material bin through the mixer to obtain mixed materials;

[0015] Step seven: add the mixed materials to the ball press machine to cold-press the mixed materials into balls.

[0016] Further improvement lies in that in step one, the purpose of mixing and digesting by the forklift is to exhaust the water in the materials.

[0017] Further improvement lies in that in step two, the division into two equal parts is an average distribution, one half is added to the auxiliary material bin, and the auxiliary material bin is provided with a conveyor belt for conveying the binder and the heating agent.

[0018] Further improvement lies in that in step four, when the materials on the conveying belt start to be conveyed, the inductive device is triggered by the force of the materials, the inductive device automatically starts the spiral feeder, and the spiral feeder is automatically turned off when the material conveying is interrupted.

[0019] Further improvement lies in that in step four, during the starting of the spiral feeder, the rotating speed of the spiral rotating shaft is controlled by the variable frequency motor, so that the materials discharged from the discharge port are uniformly distributed in a linear shape on the surface of the materials on the conveying belt.

[0020] Further improvement lies in that in step six, the material in the digestion bin is put into the mixer, and at the same time, the binder and the heat agent in the auxiliary material bin are introduced into the mixer through the conveying belt of the auxiliary material bin, and in step six, the mixer and the mixer are both double-shaft mixers.

[0021] Further improvement lies in that in step seven, the mixed material from the mixer is put into the ball press through the bucket elevator, and is cold-pressed into balls through the ball press.

[0022] The present application has the following advantages:

[0023] 1. The present application makes the spiral feeder, changes the batching method, and transports the binder and the heat agent in the collecting hopper to the discharge port, uniformly transports them to the surface of the material on the conveying belt in a linear shape, cooperates with the subsequent mixing, achieves the purpose of uniform batching, and improves the digestion effect.

[0024] 2. The present application adopts the secondary batching method, divides the binder and the heat agent into two parts, one part is added into the auxiliary material bin, and the other part is added into the spiral feeder and is added into the digestion bin in advance, achieves the purpose of uniform batching, and ensures that the cold-pressed block produced has qualified quality, less powder and high strength.

[0025] 3. The present application is beneficial to improve the quality of the cold-pressed block, avoids the dust influence on the environment and the fire accident caused by the ignition during use, and improves the product competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the front view of the present application;

[0027] Figure 2 It is the flow chart of the present application.

[0028] 1, conveying belt; 2, base; 3, material conveying pipe; 4, spiral rotating shaft; 5, collecting hopper; 6, discharge port; 7, frequency conversion motor; 8, flange. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present application, the present application will be further described in combination with the embodiments below, and the present embodiments are only used to explain the present application, and do not constitute the limitation on the protection scope of the present application.

[0030] Embodiment one

[0031] According to Figure 1As shown, this embodiment provides a device for uniformly distributing viscous materials, comprising a conveyor belt 1 and a screw feeder, wherein the screw feeder is arranged above the conveyor belt 1, and the screw feeder comprises a base 2 and a conveying pipe 3, wherein the base 2 is mounted above the conveyor belt 1, and the conveying pipe 3 is arranged above the base 2, and a spiral shaft 4 is provided inside the conveying pipe 3 for rotation;

[0032] A collecting hopper 5 is provided on one side of the top of the conveying pipe 3, and a discharge port 6 is provided on the other side of the bottom of the conveying pipe 3. The collecting hopper 5 is connected to the conveying pipe 3, and the discharge port 6 is connected to the conveying pipe 3, and the output end of the discharge port 6 faces the conveyor belt 1.

[0033] A variable frequency motor 7 is provided on one side of the top of the base 2 , the feed pipe 3 extends from one side of the spiral shaft 4 , and the output end of the variable frequency motor 7 is connected to one side of the spiral shaft 4 via a flange 8 .

[0034] When in use, the amount of binder and exothermic agent added is divided into two and distributed evenly, half is added to the auxiliary material bin, which is equipped with a conveyor belt for conveying the binder and exothermic agent, and the other half is added to the collecting hopper 5; the converter mud, steelmaking dust removal powder and furnace dust removal ash are added to the conveyor belt 1, and the head ash and lime are added at the same time; the material is transported through the conveyor belt 1, and the synchronous screw feeder is started to transport the binder and exothermic agent in the collecting hopper 5 to the discharge port 6, and the speed of the spiral shaft 4 is controlled by the frequency conversion motor 7 so that the material sent out from the discharge port 6 is evenly distributed in a linear shape on the material surface of the conveyor belt 1; the conveyor belt 1 sends the material into the 1# mixer, mixes and stirs the material, and then transports it to the digestion bin for digestion.

[0035] The present invention achieves uniform batching by manufacturing a spiral feeder and changing the batching method, thereby ensuring that the produced cold-pressed blocks are of qualified quality (less powder and higher strength). First, by manufacturing a spiral feeder, the purpose of uniform batching is achieved, thereby improving the digestion effect; second, by changing the batching process, uniform batching is ensured, thereby improving the quality of the cold-pressed blocks; third, by improving the quality of the cold-pressed blocks, the environmental impact of dust during use and the occurrence of fire accidents caused by open flames are avoided, thereby improving the competitiveness of the product.

[0036] Example 2

[0037] according to Figure 2 As shown, this embodiment provides a method for uniformly dispensing viscous materials, comprising the following steps:

[0038] Use a forklift to mix and digest the converter mud, steelmaking dust removal powder and furnace dust removal ash on the ground to exhaust the moisture inside the material;

[0039] The binder and the heat generating agent are evenly divided into two parts, one part is added into the auxiliary material bin, and the auxiliary material bin is provided with a conveying belt for conveying the binder and the heat generating agent, and the other part is added into the collecting hopper 5;

[0040] The converter mud, the steelmaking dust and the preheating dust are added onto the conveying belt 1, and the machine head dust and the lime are also added;

[0041] The materials are conveyed by the conveying belt 1, when the conveying belt 1 starts to convey the materials, the inductive device is triggered by the force of the materials, the inductive device automatically starts the screw feeder, and the screw feeder is automatically closed when the discharging is interrupted, the screw feeder is started to convey the binder and the heat generating agent in the collecting hopper 5 to the discharge port 6, in this process, the rotating speed of the screw shaft 4 is controlled by the frequency conversion motor 7, so that the materials discharged from the discharge port 6 are uniformly distributed on the material surface of the conveying belt 1 in a linear shape, wherein, after the conveying belt 1 is started, the screw feeder starts to work by the signal sent by the inductive device, the working principle of the inductive device is that the inductive rod is lifted and inclined by the force of the materials, the inductive iron leaves the proximity switch, and the screw feeder starts to work, when the discharging is interrupted and the inductive rod is in the vertical filling state, the screw feeder immediately stops working to avoid the situation that the screw feeder continues to feed due to the interruption of discharging;

[0042] The materials are conveyed into the 1# mixer by the conveying belt 1, the materials are mixed and stirred, and then conveyed to the digestion bin for digestion;

[0043] After the digestion is completed, the materials in the digestion bin are added into the 2# mixer, at the same time, the binder and the heat generating agent in the auxiliary material bin are introduced into the 2# mixer through the conveying belt of the auxiliary material bin, and the mixture is obtained after being uniformly stirred by the 2# mixer and the 3# mixer, wherein, the 2# mixer and the 3# mixer are double-shaft mixers;

[0044] The mixture discharged from the mixer enters the ball press machine through the bucket elevator, and is cold-pressed into balls by the ball press machine.

[0045] The present application makes a spiral feeder, adopts secondary distribution method, and adds binder and heating agent in two parts, one part is added by raw material bin, and the other part is added into the spiral feeder, and is added before entering the digestion bin. The spiral feeder is installed on the conveying belt 1, and the spiral shaft 4 is rotated by the frequency conversion motor 7 and the flange 8, and the material is sent from the material hopper 5 to the conveying belt 1. The conveying belt 1 synchronously transmits other materials, the discharging speed of the discharging port 6 is controlled by the frequency conversion motor 7, the sent material is uniformly distributed on the material surface of the conveying belt 1 in linear shape, enters the 1# mixer together with the material, and then enters the digestion bin for digestion. The added binder and heating agent pass through a mixer, and the purpose of fully stirring is achieved. Then, the other part of the binder and heating agent is added for stirring. Through the above, the binder and heating agent are added in two times, the purpose of uniform distribution is achieved, and the quality of the produced cold pressed block is ensured to be qualified, the powder is less, and the strength is high.

[0046] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for uniformly dispensing viscous materials, characterized in that: The invention comprises a device for uniformly distributing viscous materials, the device comprising a conveying belt (1) and a screw feeder, the screw feeder being arranged above the conveying belt (1), the screw feeder comprising a base (2) and a conveying pipe (3), the base (2) being installed above the conveying belt (1), the conveying pipe (3) being arranged above the base (2), and a spiral shaft (4) being provided inside the conveying pipe (3) for rotation; A collecting hopper (5) is provided on one side of the top of the conveying pipe (3), and a discharge port (6) is provided on the other side of the bottom of the conveying pipe (3). The collecting hopper (5) is in communication with the conveying pipe (3), and the discharge port (6) is in communication with the conveying pipe (3), and the output end of the discharge port (6) faces the conveying belt (1); A variable frequency motor (7) is provided on one side of the top of the base (2), the feed pipe (3) extends from one side of the spiral shaft (4), and the output end of the variable frequency motor (7) is connected to one side of the spiral shaft (4) via a flange (8); The method for uniformly dispensing viscous materials comprises the following steps: Step 1: Mix and digest the converter mud, steelmaking dust removal powder and furnace dust removal ash on the ground using a forklift; Step 2: Divide the amount of binder and heating agent into two parts, add one part to the auxiliary material bin for use, and add the other part to the collection hopper (5); Step 3: Add converter mud, steelmaking dust removal powder, and furnace dust removal ash to the conveyor belt (1), and add head ash and lime at the same time; Step 4: feeding the material through the conveyor belt (1), and synchronously starting the screw feeder to convey the binder and the heating agent in the collecting hopper (5) to the discharge port (6), and the discharged material is distributed on the material surface of the conveyor belt (1); Step 5: The conveyor belt (1) sends the material into the 1# mixer, mixes and stirs the material, and then sends it to the digestion bin for digestion; Step 6: After the digestion is completed, the materials in the digestion bin and the binder and heating agent in the auxiliary material bin are mixed evenly in the 2# mixer and the 3# mixer to obtain a mixed material; Step 7: Add the mixture into the ball press and cold press it into balls.

2. The method for uniformly dispensing viscous materials according to claim 1, characterized in that: In step 1, the purpose of using a forklift to mix and digest is to exhaust the moisture inside the material.

3. A method for uniformly dispensing viscous materials according to claim 2, characterized in that: In the step 2, the mixture is divided into two parts for equal distribution, and half of the mixture is added into the auxiliary material bin, which is equipped with a conveyor belt for conveying the adhesive and the heating agent.

4. A method for uniformly dispensing viscous materials according to claim 3, characterized in that: In the fourth step, when the material on the conveyor belt (1) starts to be conveyed, the sensing device is triggered by the force of the material, and the sensing device automatically starts the screw feeder and automatically shuts down the screw feeder when the discharge is interrupted.

5. A method for uniformly dispensing viscous materials according to claim 4, characterized in that: In the fourth step, during the start-up of the screw feeder, the speed of the screw shaft (4) is controlled by the variable frequency motor (7), so that the material discharged from the discharge port (6) is evenly distributed in a linear manner on the material surface of the conveyor belt (1).

6. A method for uniformly dispensing viscous materials according to claim 5, characterized in that: In the step six, when the material in the digestion bin enters the 2# mixer, the binder and the heating agent in the auxiliary material bin are synchronously introduced into the 2# mixer through the conveyor belt equipped with the auxiliary material bin, and in step six, the 2# mixer and the 3# mixer are both double-shaft mixers.

7. A method for uniformly dispensing viscous materials according to claim 6, characterized in that: In the step seven, the mixed material from the mixer enters the ball press through the bucket elevator and is cold-pressed into balls by the ball press.

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