阅读说明：本技术 一种干混加热粉的方法 (Method for dry mixing heating powder ) 是由 赵川 刘江涛 文桥 刘丹 张华� 张永会 翟明恩 卢崇庆 于 2021-08-13 设计创作，主要内容包括：本方案公开了火工品混合技术领域的一种干混加热粉的方法,具体为：使用混料机对加热粉进行混匀,混料机内设有搅拌桨,搅拌桨与混料机内壁之间的距离为3～10mm；混料机为水循环冷却混料机,循环水的温度为0℃～5℃,混料机内压力为0.1Kpa～3.0Kpa,搅拌桨的转速为200r/min～230r/min,混料时间为20min～60min。本申请使用混料机对加热粉进行混匀,大大提高了对加热粉的混匀效率,另外,采用机械化的混匀方式,使得加热粉的混匀过程可以进行标准化设定,确保产品批次的一致性和稳定性。另外,在加热粉混匀过程中,由于混料机的温度保持在0℃～5℃,可以对混料机内的加热粉实现快速降温,进而避免加热粉出现燃烧或爆炸的情况发生。(The scheme discloses a method for dry mixing heating powder in the technical field of initiating explosive device mixing, which specifically comprises the following steps: uniformly mixing the heating powder by using a mixer, wherein a stirring paddle is arranged in the mixer, and the distance between the stirring paddle and the inner wall of the mixer is 3-10 mm; the mixer is a water circulation cooling mixer, the temperature of the circulating water is 0-5 ℃, the pressure in the mixer is 0.1-3.0 Kpa, the rotating speed of a stirring paddle is 200-230 r/min, and the mixing time is 20-60 min. This application uses the blendor to carry out the mixing to heating powder, has improved the mixing efficiency to heating powder greatly, in addition, adopts mechanized mixing mode for the mixing process of heating powder can carry out standardized setting, ensures the uniformity and the stability of product batch. In addition, in the process of uniformly mixing the heating powder, the temperature of the mixer is kept between 0 and 5 ℃, so that the heating powder in the mixer can be rapidly cooled, and the situation that the heating powder is burnt or exploded is avoided.)

1. A method for dry mixing heating powder, characterized in that: uniformly mixing the heating powder by using a mixer, wherein a stirring paddle is arranged in the mixer, and the distance between the stirring paddle and the inner wall of the mixer is 3-10 mm; the mixer is a water circulation cooling mixer, the temperature of the circulating water is 0-5 ℃, the pressure in the mixer is 0.1-3.0 Kpa, the rotating speed of a stirring paddle is 200-230 r/min, and the mixing time is 20-60 min.

2. A method for dry-mixing a heating powder according to claim 1, characterized in that: be equipped with temperature sensor in the blendor, temperature sensor is connected with the controller, controller electrical signal connection temperature sensor and blendor, when the temperature in the blendor reaches more than 40 ℃, the controller control blendor stop work.

3. A method for dry-mixing a heating powder according to claim 2, characterized in that: the external environment humidity of the mixer is 0.2-2.5%.

4. A method for dry-mixing a heating powder according to claim 3, characterized in that: and feeding the heating powder into the mixer by adopting an automatic feeding machine.

5. A method for dry-blending a heating powder according to claim 4, characterized in that: and after the heating powder is uniformly mixed, bottling the heating powder by adopting an automatic filling machine.

6. A method for dry-blending a heating powder according to claim 5, characterized in that: after the materials are uniformly mixed by the mixer, the discharging speed is 20 g/s-400 g/s.

7. A method for dry-blending a heating powder according to claim 6, characterized in that: and after the heating powder is automatically filled by the filling machine, automatically feeding the bottles by using an automatic bottle arranging machine.

8. A method for dry-mixing a heating powder according to claim 7, characterized in that: the automatic bottle arranging machine conveys bottles through a conveyor belt, and the speed of the conveyor belt is 2-20 cm/s.

Technical Field

The invention belongs to the technical field of initiating explosive device mixing, and particularly relates to a method for dry mixing heating powder.

Background

The heating powder consists of an oxidizing agent and a reducing agent, has high sensitivity, and can cause combustion and explosion by carelessness in the production process. The mixing of the heating powder is an important process in the production of the heating powder, and the safety accidents in the mixing process account for more than 80 percent of the accidents in the whole industry.

The traditional dry mixing of the heating powder is purely manual operation, people are in direct contact with the medicine, and the safety of workers is not guaranteed in the manufacturing process. During manufacturing, the medicament is repeatedly rubbed with a manual sieving and mixing tool, static electricity and heat are easily generated, and dust in the air is large, so that the environment is polluted, and the health of workers is influenced. In addition, only 1-2 kg of the raw materials can be mixed manually at a time, so that the production efficiency is low and the labor intensity is high. In addition, because manual blending is mainly realized by the proficiency and the operation skill of workers, the consistency and the stability of product batches cannot be ensured.

In order to overcome the drawback of artifical mixing heating powder, current main method is to use the blendor to add the hot powder mixing, but in order to ensure the efficiency of stirring, the stirring leaf of present blendor generally contacts with the inner wall of blendor, the in-process that the stirring leaf stirred to adding the hot powder, the friction between oxidant and the reductant can produce a large amount of heats in the hot powder, meanwhile, because stirring leaf and the contact of blendor inner wall, produce the spark very easily, and then lead to adding the hot powder and take place burning or explosion, thereby seriously threaten staff's safety.

Disclosure of Invention

The invention aims to provide a method for dry mixing of heating powder, which aims to solve the problem that the heating powder is easy to combust or explode due to the fact that a mixer is used for uniformly mixing the heating powder at present.

The method for dry mixing and heating the powder in the scheme specifically comprises the following steps: uniformly mixing the heating powder by using a mixer, wherein a stirring paddle is arranged in the mixer, and the distance between the stirring paddle and the inner wall of the mixer is 3-10 mm; the mixer is a water circulation cooling mixer, the temperature of the circulating water is 0-5 ℃, the pressure in the mixer is 0.1-3.0 Kpa, the rotating speed of a stirring paddle is 200-230 r/min, and the mixing time is 20-60 min.

The beneficial effect of this scheme: the mixer is used for mixing the heating powder, so that the mixing efficiency of the heating powder is greatly improved, and in addition, a mechanized mixing mode is adopted, so that the mixing process of the heating powder can be standardized and set, and the consistency and stability of the product batch are ensured. In addition, in the process of uniformly mixing the heating powder, the temperature of the mixer is kept between 0 and 5 ℃, so that the heating powder in the mixer can be rapidly cooled, and the situation that the heating powder is burnt or exploded is avoided.

Further, be equipped with temperature sensor in the blendor, temperature sensor is connected with the controller, controller electric signal connection temperature sensor and blendor, when the temperature in the blendor reaches more than 40 ℃, the controller control blendor stop work. After the temperature in the blender mixer reaches more than 40 ℃, the heating powder in the blender mixer is easy to combust or explode, and through the arrangement of the temperature sensor and the controller, when the temperature in the blender mixer reaches more than 40 ℃, the controller controls the blender mixer to stop working, so that the safety accidents can be greatly reduced.

Further, the external environment humidity of the mixer is 0.2% -2.5%. Avoiding the heating powder from absorbing moisture.

And further, feeding the heating powder into the mixer by adopting an automatic feeding machine. Adopt automatic feeding machine to carry out the material loading to heating powder, avoid staff and heating powder contact, further ensure safety, in addition, automatic feeding's mode can improve the material loading speed of heating powder by a wide margin, improves material loading efficiency.

Further, after the heating powder is uniformly mixed, the heating powder is bottled by an automatic filling machine. Adopt automatic filling machine to bottle heating powder, avoid staff and heating powder contact, further ensure safety, in addition, automatic filling's mode can improve the filling speed of heating powder by a wide margin, improves filling efficiency.

Further, after the mixer is uniformly mixed, the discharging speed is 20 g/s-400 g/s.

Further, after the heating powder is automatically filled through a filling machine, an automatic bottle arranging machine is used for automatically feeding bottles. Carry out the automation through automatic reason bottle machine and send the bottle, can show and improve and send bottle efficiency.

Further, the automatic bottle arranging machine conveys bottles through a conveyor belt, and the speed of the conveyor belt is 2-20 cm/s.

Detailed Description

The following is further detailed by way of specific embodiments:

example 1:

a method for dry-mixing heating powder is characterized in that a dry-mixing system is used for dry-mixing the heating powder, the dry-mixing system comprises an automatic feeding machine, a mixer, an automatic filling machine, an automatic bottle arranging machine and a controller, the mixer is a water circulation cooling mixer, and the method specifically comprises the following steps: the wall body of the mixer is of an interlayer structure, and the interlayer is connected with a cooling water circulation system so as to cool the heating powder in the mixer; a stirring paddle is arranged in the mixer and connected with a motor for driving the stirring paddle to rotate; the mixer of this application and the mixer difference among the prior art mainly lie in: the distance between the stirring paddle and the inner wall of the mixer is 10mm, and a temperature sensor is arranged in the mixer; the controller is connected with the motor, the cooling water circulation system, the automatic feeding machine, the automatic filling machine and the automatic bottle arranging machine through electric signals, and the controller controls the automatic feeding machine, the mixer, the automatic filling machine and the automatic bottle arranging machine to automatically work.

The specific operation is as follows: the controller controls the automatic feeding machine to automatically feed the mixer, after the feeding is finished, the controller controls the motor to drive the stirring paddle to uniformly mix the heating powder, and controls the cooling water circulation system to cool the heating powder in the mixer, wherein the temperature of condensed water is 5 ℃, the pressure in the mixer is 3.0Kpa, the rotating speed of the stirring paddle is 210r/min, and the mixing time is 60 min; in the process of heating the powder dry mixing, the temperature sensor feeds the temperature in the mixer back to the controller, and when the temperature is higher than 40 ℃, the controller controls the motor of the mixer to stop working. After the heating powder is uniformly mixed, the controller controls an automatic filling machine to fill and bottle the heating powder conveyed by the mixer, and the discharging speed of the mixer is 20g/s during bottle filling; meanwhile, the controller controls the automatic bottle arranging machine to automatically convey filled bottles, and the automatic bottle arranging machine conveys the bottles through a conveying belt at the speed of 2 cm/s.

Example 2:

a method of dry mixing heating powders which differs from example 1 only in that: the distance between the stirring paddle and the inner wall of the inner layer of the mixer is 6 mm; the temperature of the condensed water is 0 ℃, the pressure in the inner layer of the mixer is 1.2Kpa, the rotating speed of the stirring paddle is 200r/min, and the mixing time is 40 min; when bottling, the discharging speed of the mixer is 100 g/s; when the automatic bottle arranging machine sends bottles, the speed of the conveyor belt is 15 cm/s.

Example 3:

a method of dry mixing heating powders which differs from example 1 only in that: the distance between the stirring paddle and the inner wall of the inner layer of the mixer is 3 mm; the temperature of the condensed water is 3 ℃, the pressure in the inner layer of the mixer is 0.1Kpa, the rotating speed of the stirring paddle is 230r/min, and the mixing time is 20 min; during bottling, the discharging speed of the mixer is 400 g/s; when the automatic bottle arranging machine sends bottles, the speed of the conveyor belt is 20 cm/s.

In the application, the controller is selected as a plc controller, the host of the plc controller is selected as the agility XCC-32T-E, and the expansion module is selected as the agility XCL-E16X16 YR-E.

In this application, because automatic feeding machine, automatic filling machine and automatic reason bottle machine are prior art, no longer repeated in this text.

In the process method for dry-mixing the heating powder, the capacity of the dry-mixing heating powder is up to (30-50) kg/h, and the uniformity of the uniformly-mixed heating powder after bottling is 95-99.9%. Meanwhile, the number of staff members on the whole line is less than 2, and the labor personnel do not need to be in direct contact with the heating powder, so that the labor efficiency and the safety are obviously improved.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.