CN211284260U

CN211284260U - Wax catching device

Info

Publication number: CN211284260U
Application number: CN201922324606.1U
Authority: CN
Inventors: 杨迅
Original assignee: Zigong Changcheng Equipment Technology Co ltd
Current assignee: Zigong Changcheng Equipment Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-18
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a catch wax device, include and set gradually and first dewaxing jar, second dewaxing jar, the third dewaxing jar that communicate from upwards setting gradually down, set up the air inlet on the first dewaxing jar, set up the export of wax gas on the third dewaxing jar, wherein, the external portion of jar of first dewaxing jar, second dewaxing jar, third dewaxing jar is overlapped respectively and is established the cover and press from both sides, and the space that presss from both sides between the cover and the jar body is the heat exchange chamber, the heat exchange chamber is connected with cold source or heat source. In the wax catching device provided by the utility model, the gaseous paraffin is liquefied for the first time when passing through the first dewaxing pot, and most of the paraffin gas is converted into liquid paraffin to be stored in the first dewaxing pot; the other part of the gaseous paraffin passes through the second dewaxing tank, is further liquefied into liquid paraffin by cooling in the second dewaxing pipe and flows back to the first dewaxing tank along the inner wall surface of the second dewaxing tank, and finally, a small part of the gaseous paraffin is collected by the third dewaxing tank, and the collected liquid paraffin also flows back to the first dewaxing tank through the second dewaxing tank.

Description

Wax catching device

Technical Field

The utility model relates to a catch the wax device, especially relate to a wax device is caught to low pressure fritting furnace high efficiency.

Background

In the process of sintering products by metallurgical equipment, in order to enable the products to be molded better, a molding agent paraffin is usually required to be added into the products, but after molding is completed, the paraffin stays in the products to influence the quality of the products, so the products need to be subjected to a dewaxing process in a pressure sintering furnace, and the specific operation is to extract paraffin gas from a furnace body and collect the paraffin in the paraffin gas.

Therefore, chinese patent document CN201721911157.5 proposes a three-stage wax catching structure, which includes a dewaxing device and a wax collecting barrel, wherein the dewaxing device is disposed at an inlet end of the wax collecting barrel, the dewaxing device includes four sets of mutually inclined dewaxing tank bodies, a first set of dewaxing tank bodies is vertically fixed on the wax collecting barrel, a second set of dewaxing tank bodies is obliquely disposed on the first set of dewaxing tank bodies, a third set of dewaxing tank bodies is vertically fixed on the second set of dewaxing tank bodies, and a fourth set of dewaxing tank bodies is obliquely disposed on the third set of dewaxing tank bodies.

However, the three-stage wax trapping structure disclosed in the above patent document has the following disadvantages: the first group of dewaxing tank bodies are vertically fixed on the wax collecting barrel, the second group and the fourth group of dewaxing tank bodies respectively have an inclination angle of 30-45 degrees with the horizontal plane, the structure is complex, and the manufacturing and installation requirements are high; an electric heating pipe is arranged in the dewaxing tank body, the temperature is rapid cooling and rapid heating, the wax content of the product by the structure of the wax catching blade reaches more than 4%, the wax catching effect of the wax catching structure on paraffin is poor and is about 70%, and the use requirement of a user on the wax catching rate of more than 95% cannot be met.

Therefore, it is necessary to provide a trapping device which has a simple structure and efficiently collects paraffin.

SUMMERY OF THE UTILITY MODEL

Based on the above problem, an object of the utility model is to provide a wax device of catching of paraffin is collected to simple structure, high efficiency.

In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a catch wax device, includes and sets gradually and first dewaxing jar, second dewaxing jar, the third dewaxing jar that communicate from upwards setting gradually down, set up the air inlet on the first dewaxing jar, set up the gas outlet on the third dewaxing jar, wherein, the external portion of jar that first dewaxing jar, second dewaxing jar, third dewaxing jar sets up respectively and presss from both sides the cover, presss from both sides the space between cover and the jar body and is the heat exchange chamber, the heat exchange chamber is connected with cold source or heat source.

When the paraffin removing device is used, a gaseous paraffin outlet of the furnace body is connected with an air inlet of the paraffin removing device, gaseous paraffin is liquefied for the first time when passing through a first paraffin removing tank, and most of paraffin gas is converted into liquid paraffin to be stored in the first paraffin removing tank; the other part of the gaseous paraffin passes through the second dewaxing tank, is further liquefied into liquid paraffin through cooling at the second dewaxing pipe and flows back to the first dewaxing tank along the inner wall surface of the second dewaxing tank, and finally, a small part of the gaseous paraffin is collected through the third dewaxing tank, and the collected liquid paraffin also flows back to the first dewaxing tank through the second dewaxing tank.

Specifically, heat exchange tubes are respectively arranged in the first dewaxing tank and the second dewaxing tank, wax catching blades are arranged outside the heat exchange tubes, and the heat exchange tubes are connected with a heat source or a cold source outside the wax catching device through pipelines; and a pall ring is arranged in the third dewaxing tank, a cold source is introduced into the heat exchange pipe to ensure that the gaseous paraffin is rapidly liquefied in the dewaxing process, or a heat source is introduced according to requirements to ensure that the liquid paraffin cannot be condensed, and the introduction of the heat source and the cold source is determined according to the liquefaction condition of the paraffin.

Specifically, set up coaxial inner tube in the heat exchange tube, form the heat transfer chamber between the pipe wall of inner tube and heat exchange tube, the one end of inner tube links firmly with the one end of heat exchange tube, the other end and heat transfer chamber intercommunication, the one end that inner tube and heat exchange tube linked firmly sets up the export with the inner tube intercommunication, the heat exchange tube is close to and links firmly the import that the department set up and heat transfer chamber intercommunication with the inner tube, import or export are passed through the pipeline and are connected with cold source or heat source, for example, when needs let in the cold source, let in cooling water from the import, cool down the heat exchange tube when cooling water flows in from the heat transfer chamber to guarantee gaseous state paraffin liquefaction fast, directly discharge from the export through the inner tube after the heat of wax gas is absorbed.

The wax catching blade is a circular flat bottom blade with a groove, a plurality of blades are vertically and evenly distributed outside the heat exchange tube and are arranged in the groove alternatively in the groove direction, the flowing speed of wax gas can be reduced when the wax gas is liquefied by the wax catching blade, the time for condensing the wax gas in the device is prolonged, the efficient wax catching effect is achieved, the groove is formed in the wax catching blade, the wax gas is prevented from being completely separated by the wax catching blade, and the liquefying efficiency is improved.

Specifically, the first dewaxing tank and the second dewaxing tank are respectively arranged in an inclined manner relative to a horizontal plane, the third dewaxing tank is vertically arranged, the lowest end of the bottom of the second dewaxing tank is communicated with the top of the first dewaxing tank through a short pipe, the bottom opening of the third dewaxing tank is communicated with the highest end of the top of the second dewaxing tank, and the top opening of the third dewaxing tank is an air outlet; the first dewaxing tank and the second dewaxing tank are obliquely arranged to ensure that the liquefied paraffin can smoothly flow to the bottom of the first dewaxing tank and avoid the accumulation of liquid paraffin in the second dewaxing tank; more specifically, the first dewaxing tank and the second dewaxing tank have inclination angles of 2-15 degrees relative to the horizontal plane, and the inclination angles of 2-15 degrees are convenient to install and are sufficient for flowing and gathering of liquid paraffin.

Specifically, the air inlet is arranged at the higher end of the right side part of the first dewaxing tank away from the horizontal plane, the liquid outlet is arranged at the lower end of the left side part of the first dewaxing tank away from the horizontal plane, wax gas enters from the air inlet, and liquid paraffin is discharged from the liquid outlet.

Specifically, the first dewaxing tank is obliquely installed relative to the horizontal plane through a bracket.

The utility model has the advantages that:

in the wax catching device provided by the utility model, the gaseous paraffin is liquefied for the first time when passing through the first dewaxing pot, and most of the paraffin gas is converted into liquid paraffin to be stored in the first dewaxing pot; the other part of the gaseous paraffin passes through the second dewaxing tank, is further liquefied into liquid paraffin through cooling at the second dewaxing pipe and flows back to the first dewaxing tank along the inner wall surface of the second dewaxing tank, and finally, a small part of the gaseous paraffin is collected through the third dewaxing tank, and the collected liquid paraffin also flows back to the first dewaxing tank through the second dewaxing tank.

Drawings

FIG. 1 is a schematic view of a wax trap provided by the present invention;

FIG. 2 is a schematic view of a heat exchange tube and wax catching blades.

Wherein, 1 is a first dewaxing tank, 2 is a second dewaxing tank, 3 is a third dewaxing tank, 4 is a jacket, 5 is a heat exchange pipe, 6 is a wax catching blade, 7 is a pall ring, and 8 is an inner pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1, the embodiment provides a wax catching device, which includes a first dewaxing tank 1, a second dewaxing tank 2, and a third dewaxing tank 3, which are sequentially arranged from bottom to top, wherein the first dewaxing tank 1 is installed obliquely relative to a horizontal plane through a support, the second dewaxing tank 2 is parallel to the first dewaxing tank 1, the third dewaxing tank 3 is vertically arranged, the lowest end of the bottom of the second dewaxing tank 2 is communicated with the top of the first dewaxing tank 1 through a short pipe, an air inlet is arranged at one end of the side of the first dewaxing tank 1, which is higher than the horizontal plane, a liquid outlet is arranged at one end of the side of the first dewaxing tank 1, which is lower than the horizontal plane, an opening at the bottom of the third dewaxing tank 3 is communicated with the highest end of the top of the second dewaxing tank 2, and an opening at the top of the third dewaxing tank 3 is a wax gas outlet; wherein, the tank bodies of the first dewaxing tank 1, the second dewaxing tank 2 and the third dewaxing tank 3 are respectively provided with a jacket 4 outside, a gap between the jacket 4 and the tank body is a heat exchange cavity, and the heat exchange cavity is connected with a hot water source; the internal heat exchange tubes 5 that set up respectively of first dewaxing jar 1, second dewaxing jar 2, set up coaxial inner tube 8 in the heat exchange tube 5, form the heat transfer chamber between the pipe wall of inner tube 8 and heat exchange tube 5, the one end of inner tube 8 links firmly with the one end of heat exchange tube 5, the other end communicates with heat transfer chamber, the one end that inner tube 8 links firmly with heat exchange tube 5 sets up the export with inner tube 8 intercommunication, heat exchange tube 5 is close to and sets up the import with heat transfer chamber intercommunication with inner tube 8 department of linking firmly, wherein, import or export are connected with cold water source or heat source through the pipeline, heat exchange tube 5 sets up wax catching blade 6 outward, as shown in figure 2, wax catching blade 6 is circular flat-bottomed and takes the notched blade, a plurality of blades perpendicular equipartition in the outside of heat exchange tube 5 and fluting direction set up in turn, set up pall.

During the dewaxing process of the low-pressure sintering furnace, cold water is introduced into the heat exchange cavity, hot water is introduced into the heat exchange cavity, both the cold water and the hot water are provided by a mold temperature controller, a gas wax outlet of the furnace body is connected with an air inlet of the device, gaseous paraffin is liquefied for the first time when passing through the first dewaxing tank 1, and most of wax gas is converted into liquid paraffin to be stored in the first dewaxing tank 1; the other part of the gaseous paraffin passes through the second dewaxing tank 2, is further liquefied into liquid paraffin through cooling at the second dewaxing pipe and flows back to the first dewaxing tank 1 along the inner wall surface of the second dewaxing tank 2, and finally a small part of the gaseous paraffin is collected through the third dewaxing tank 3, the collected liquid paraffin also flows back to the first dewaxing tank 1 through the second dewaxing tank 2, and then hot water is introduced into heat exchange cavities of the first dewaxing tank 1, the second dewaxing tank 2 and the third dewaxing tank 3, so that the condensed paraffin in the device is melted into liquid paraffin, and all the liquid paraffin flows back to the first dewaxing tank 1 and is discharged through a liquid discharge port.

The device provided by the embodiment has the wax catching efficiency of more than 98%.

The above embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides a catch wax device, its characterized in that includes and sets gradually and first dewaxing jar, second dewaxing jar, the third dewaxing jar that communicate from making progress down, set up the air inlet on the first dewaxing jar, set up the wax gas export on the third dewaxing jar, wherein, the external portion of jar of first dewaxing jar, second dewaxing jar, third dewaxing jar overlaps respectively and establishes the cover that presss from both sides, and the space that presss from both sides between the cover and the jar body is the heat exchange chamber, the heat exchange chamber is connected with cold source or heat source.

2. The wax trap according to claim 1, wherein heat exchange tubes are respectively arranged in the first dewaxing tank and the second dewaxing tank, wax trapping blades are arranged outside the heat exchange tubes, and the heat exchange tubes are connected with a heat source or a cold source outside the wax trap through pipelines; and a pall ring is arranged in the third dewaxing tank.

3. The wax trap according to claim 2, wherein a coaxial inner tube is arranged in the heat exchange tube, a heat exchange cavity is formed between the inner tube and the tube wall of the heat exchange tube, one end of the inner tube is fixedly connected with one end of the heat exchange tube, the other end of the inner tube is communicated with the heat exchange cavity, one end of the inner tube fixedly connected with the heat exchange tube is provided with an outlet communicated with the inner tube, the heat exchange tube is provided with an inlet communicated with the heat exchange cavity near the fixedly connected part with the inner tube, and the inlet or the outlet is connected with a cold source or a heat source.

4. The wax catching device according to claim 2 or 3, wherein the wax catching blades are round flat-bottomed and grooved blades, and a plurality of blades are uniformly distributed outside the heat exchange tube and are alternately arranged in the grooving direction.

5. The wax trap according to claim 1, wherein the first dewaxing tank and the second dewaxing tank are respectively arranged in an inclined manner with respect to a horizontal plane, the third dewaxing tank is arranged vertically, a lowest bottom end of the second dewaxing tank is communicated with a top of the first dewaxing tank through a short pipe, a bottom opening of the third dewaxing tank is communicated with a highest top end of the second dewaxing tank, and a top opening of the third dewaxing tank is a wax gas outlet.

6. The wax trap of claim 5, wherein the first dewaxing tank and the second dewaxing tank are each inclined at an angle of 2 ° to 15 ° with respect to the horizontal plane.

7. The wax trap according to claim 5 or 6, wherein the air inlet is provided at an end of the first dewaxing pot side higher from the horizontal plane, and the liquid outlet is provided at an end of the first dewaxing pot side lower from the horizontal plane.

8. The wax trap of claim 7, wherein the first dewaxing tank is mounted at an incline to the horizontal by a bracket.