阅读说明：本技术 热空干法脱蜡系统 (Hot-air dry dewaxing system ) 是由 邵建栋 于 2019-12-04 设计创作，主要内容包括：本发明涉及热空干法脱蜡系统,包括：模壳固定台、脱蜡处理室、焙烧炉、风机和集蜡池,模壳固定台用于放置模壳,焙烧炉设置在脱蜡处理室旁,风机的进风口连通焙烧炉,风机的出风口连通脱蜡处理室,模壳固定台能够通过滑轮转动进入脱蜡处理室内,集蜡池位于水平地表面下方,脱蜡处理室的排蜡口,将流体蜡经排蜡通道进入集蜡池中。本发明所述的热空干法脱蜡系统,焙烧炉风机将热风送至传送管道,并由散热管将热量传达至模壳上,这种方式使得焙烧炉焙烧时间变短,通过高温融化获得的流体蜡通过三层140目的过滤网,又可以再次进入蜡模车间重复使用,减少了能耗、满足了环保要求、节省了原料、降低了原料成本。(The invention relates to a hot air dry dewaxing system, comprising: the device comprises a mould shell fixing platform, a dewaxing treatment chamber, a roasting furnace, a fan and a wax collecting pool, wherein the mould shell fixing platform is used for placing a mould shell, the roasting furnace is arranged beside the dewaxing treatment chamber, an air inlet of the fan is communicated with the roasting furnace, an air outlet of the fan is communicated with the dewaxing treatment chamber, the mould shell fixing platform can enter the dewaxing treatment chamber through the rotation of a pulley, the wax collecting pool is positioned below the horizontal ground surface, and a wax discharging port of the dewaxing treatment chamber is used for enabling fluid wax to enter the wax collecting pool through a wax discharging channel. According to the hot air dry dewaxing system, the fan of the roasting furnace sends hot air to the conveying pipeline, and the heat is transmitted to the mould shell through the radiating pipe, so that the roasting time of the roasting furnace is shortened, fluid wax obtained through high-temperature melting can enter a wax mould workshop again through the three layers of 140-mesh filter screens for reuse, the energy consumption is reduced, the environment-friendly requirement is met, raw materials are saved, and the raw material cost is reduced.)

1. A hot air dry dewaxing system, comprising: a mould shell fixing platform, a dewaxing treatment chamber, a roasting furnace, a fan and a wax collecting tank,

the formwork fixing table comprises a formwork fixing frame for placing a formwork, an th wax storage disc for collecting fluid wax and a mobile station, the formwork fixing frame is placed on the th wax storage disc, the th wax storage disc is placed on the mobile station, a plurality of pulleys are arranged below the mobile station,

the roasting furnace is arranged beside the dewaxing treatment chamber, the air inlet of the fan is communicated with the roasting furnace, the air outlet of the fan is communicated with the dewaxing treatment chamber,

the dewaxing treatment chamber comprises a chamber body, a conveying pipeline, a plurality of radiating pipes, an air outlet, a wax discharge port and a plurality of tracks, wherein the conveying pipeline and the plurality of radiating pipes are arranged on the inner wall of the chamber body, the end of the conveying pipeline is connected with the air outlet of the fan, the other end of the conveying pipeline is communicated with the radiating pipes, each radiating pipe is provided with a plurality of radiating ports, the radiating ports face to the central area of the chamber body, the air outlet is positioned at the top of the chamber body and is communicated with the outside, the wax discharge port is positioned at the bottom of the side wall of the chamber body, the tracks are arranged on the inner surface of the bottom of the chamber body, the tracks are matched with the pulleys, and the formwork fixing table can enter the chamber body through the rotation of the pulleys,

the wax collecting pool is positioned below the horizontal ground surface, the end of the wax discharge channel is connected with the wax discharge port, the end is positioned above the wax collecting pool, and fluid wax enters the wax collecting pool from the wax discharge port through the wax discharge channel.

2. The hot-air dry dewaxing system of claim 1, wherein the formwork holder has a rectangular fixing frame, a plurality of fixing strips and a plurality of fixing feet, the bottoms of the fixing feet stand on the th wax storage disc, the tops of the fixing feet are connected with the rectangular fixing frame, the fixing strips are arranged in the rectangular fixing frame in parallel, and two ends of the fixing strips are respectively connected with the rectangular fixing frame.

3. The hot air dry dewaxing system of claim 1, wherein:

fluid wax outlets are formed in the bottom of the wax storage disc, and when the formwork fixing table is pushed into the dewaxing processing chamber, the fluid wax outlets are located right above the wax discharge port.

4. The hot air dry dewaxing system of claim 3, wherein: the mould shell fixing station also comprises a second wax storage disc, and when the mould shell fixing station is pushed out of the dewaxing treatment chamber, the fluid wax outlet is positioned right above the second wax storage disc.

5. The hot-air dry dewaxing system of claim 3, wherein the pan on the th wax storage pan is inclined toward the outlet of the fluid wax.

6. The hot air dry dewaxing system of claim 1, wherein the chamber body has three side walls, top walls and sides , the plurality of heat pipes are respectively located on the three side walls and top walls of the chamber body, and the heat pipes located on the three side walls are communicated with each other.

7. The hot-air dry dewaxing system of claim 1, wherein the wax collecting tank comprises th, second and third filtering sub-tanks, the th, second and third filtering sub-tanks are arranged in sequence, a th partition plate is arranged between the th and second filtering sub-tanks, a th filter screen is embedded in the th partition plate, a second partition plate is arranged between the second and third filtering sub-tanks, a second filter screen is embedded in the second partition plate, a filter basket is arranged in the th filtering sub-tank, the basket wall of the filter basket consists of a third filter screen, the end of the wax discharge channel is located above the filter basket, fluid wax passes through the th, second and third filtering sub-tanks from the wax discharge channel in sequence, and the third filtering sub-tank is led to the wax pattern workshop through a pipeline.

8. The hot air dry dewaxing system of claim 7, wherein: and a pump body for pumping the fluid wax is arranged on the pipeline.

9. The hot air dry dewaxing system of claim 7, wherein the apertures of the th filter screen, the second filter screen and the third filter screen are all 140 meshes.

10. The hot air dry dewaxing system of claim 7, further comprising a control device controlling the opening and closing of the side of the chamber body, wherein the moving table is provided with a motor for driving the pulley to rotate, the motor is electrically connected with the control device, the formwork fixing table moves into or out of the dewaxing treatment chamber when the motor is started, and the pump body is electrically connected with the control device, and the fluid wax is fed into the wax formwork workshop from the wax collecting pool when the pump body is started.

Technical Field

The invention belongs to the technical field of casting of precision castings, and particularly relates to a hot air dry method dewaxing system.

Background

The dewaxing process of the high-pressure autoclave comprises the steps of putting a formwork in an autoclave, melting all the formwork wax, and discharging the wastewater, wherein the formwork is easy to damage due to large pressure of the formwork, 2, silica sol is easy to generate return, 3, high-pressure steam needs to be injured, and the like, and a high-temperature steam generator is easy to cause high temperature of a steam generator, so that workers are easy to pass through a high-pressure autoclave.

Therefore, the invention aims to obtain a hot air dry dewaxing system by changing the structure of processing equipment so as to replace the dewaxing method in the prior art.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the problems of poor quality of casting products, non-conformity with national environmental protection requirements, high cost and the like in the prior art are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a hot air dry dewaxing system comprising: a mould shell fixing platform, a dewaxing treatment chamber, a roasting furnace, a fan and a wax collecting tank,

the formwork fixing table comprises a formwork fixing frame for placing a formwork, an th wax storage disc for collecting fluid wax and a mobile station, the formwork fixing frame is placed on the th wax storage disc, the th wax storage disc is placed on the mobile station, a plurality of pulleys are arranged below the mobile station,

the roasting furnace is arranged beside the dewaxing treatment chamber, the air inlet of the fan is communicated with the roasting furnace, the air outlet of the fan is communicated with the dewaxing treatment chamber,

the dewaxing treatment chamber comprises a chamber body, a conveying pipeline, a plurality of radiating pipes, an air outlet, a wax discharge port and a plurality of tracks, wherein the conveying pipeline and the plurality of radiating pipes are arranged on the inner wall of the chamber body, the end of the conveying pipeline is connected with the air outlet of the fan, the other end of the conveying pipeline is communicated with the radiating pipes, each radiating pipe is provided with a plurality of radiating ports, the radiating ports face to the central area of the chamber body, the air outlet is positioned at the top of the chamber body and is communicated with the outside, the wax discharge port is positioned at the bottom of the side wall of the chamber body, the tracks are arranged on the inner surface of the bottom of the chamber body, the tracks are matched with the pulleys, and the formwork fixing table can enter the chamber body through the rotation of the pulleys,

the wax collecting pool is positioned below the horizontal ground surface, the end of the wax discharge channel is connected with the wax discharge port, the end is positioned above the wax collecting pool, and fluid wax enters the wax collecting pool from the wax discharge port through the wax discharge channel.

The formwork fixing frame comprises preferred embodiments of the invention, the formwork fixing frame comprises a rectangular fixing frame, a plurality of fixing strips and a plurality of fixing feet, the bottoms of the fixing feet stand on the wax storage disc, the tops of the fixing feet are connected with the rectangular fixing frame, the fixing strips are arranged in the rectangular fixing frame in parallel, and two ends of the fixing strips are respectively connected with the rectangular fixing frame.

In preferred embodiments of the present invention, fluid wax outlets are provided at the bottom of the wax tray, and the outlets are located right above the wax outlet when the formwork holding platform is pushed into the dewaxing chamber.

As an preferred embodiment of the present invention, the formwork holding station further comprises a second wax storage tray, and the fluid wax outlet is located directly above the second wax storage tray after the formwork holding station is pushed out of the dewaxing treatment chamber.

As preferred embodiments of the present invention, the bottom plate of the th wax storage plate is inclined towards the outlet of the fluid wax.

As preferred embodiments of the present invention, the chamber body has three side walls, top walls and sides , the plurality of radiating pipes are respectively located on the three side walls and the top walls of the chamber body, and the radiating pipes located on the three side walls are communicated with each other.

The preferred embodiments of the present invention include that the wax collecting tank includes a filter sub-tank, a second filter sub-tank, and a third filter sub-tank, the filter sub-tank, the second filter sub-tank, and the third filter sub-tank are sequentially arranged, a th partition plate is disposed between the filter sub-tank and the second filter sub-tank, a th filter screen is embedded in the th partition plate, a second partition plate is disposed between the second filter sub-tank and the third filter sub-tank, a second filter screen is embedded in the second partition plate, a filter basket is disposed in the filter sub-tank, a basket wall of the filter basket is composed of the third filter screen, the end of the wax discharge channel is located above the filter basket, the fluid wax passes through the filter sub-tank, the second filter sub-tank, and the third filter sub-tank from the wax discharge channel, and the third filter sub-tank is led to the wax pattern workshop through a pipeline.

As preferred embodiments of the invention, the conduit is provided with a pump for drawing fluid wax.

As preferred embodiments of the present invention, the apertures of the filter, the second filter and the third filter are all 140 meshes.

As preferred embodiments of the present invention, the hot air dry dewaxing system further includes a control device, the control device controls opening and closing of the side of the chamber body, the mobile station is provided with a motor for driving the pulley to rotate, the motor is electrically connected to the control device, when the motor is started, the formwork fixing station moves into or out of the dewaxing treatment chamber, the pump body is electrically connected to the control device, and when the pump body is started, the fluid wax is fed into the wax pattern workshop from the wax collecting pool.

The invention has the beneficial effects that:

1. the hot air dry dewaxing system consists of a mould shell fixing platform, a dewaxing treatment chamber, a burning chamber and a wax collecting pool, and has simple structure and low equipment manufacturing cost;

2. the fluid wax can be recycled after being filtered, so that the energy consumption is reduced;

3. in the dewaxing process, hydrochloric acid is not required to be added for treatment, so that the method is pollution-free and environment-friendly;

5. and the dewaxed casting product does not contact with water vapor, so that the casting product does not need to be dried again, and the cost is saved.

Drawings

FIG. 1 is a schematic structural diagram of a formwork fixing table, a dewaxing treatment chamber and a roasting furnace of a hot air dry dewaxing system according to the present invention;

FIG. 2 is a schematic structural diagram of a dewaxing treatment chamber, a roasting furnace and a wax collecting tank of the hot air dry dewaxing system according to the present invention;

fig. 3 is a schematic structural diagram of a dewaxing processing chamber of the hot air dry dewaxing system according to the present invention.

Wherein, 1 is a formwork fixing table, 11 is a formwork fixing frame, 111 is a rectangular fixing frame, 112 is a fixing strip, 113 is a fixing foot, 12 is an th wax storage disc, 121 is a fluid wax outlet, 13 is a moving table, 14 is a pulley, 15 is a second wax storage disc, 2 is a dewaxing treatment chamber, 21 is a chamber body, 22 is a conveying pipeline, 23 is a radiating pipe, 24 is an exhaust port, 25 is a wax discharge port, 26 is a rail, 27 is a radiating port, 28 is a wax discharge channel, 3 is a roasting furnace, 4 is a wax collecting tank, 41 is a th filtering sub-tank, 42 is a second filtering sub-tank, 43 is a third filtering sub-tank, 44 is a th partition plate, 45 is a second partition plate, 46 is a filtering basket, and 47 is a pump body.

Detailed Description

The invention will now be described in further with reference to specific examples, but the scope of the invention is not limited to these examples.