CN214065714U

CN214065714U - Used sand regeneration system

Info

Publication number: CN214065714U
Application number: CN202023061708.8U
Authority: CN
Inventors: 盛建春; 张小俊
Original assignee: Changzhou Kasitelv Precision Casting Technology Co ltd
Current assignee: Changzhou Kasitelv Precision Casting Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-27
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a used sand regeneration system, including the regeneration furnace body, inside high temperature flue gas layer and the roasting chamber of being provided with of regeneration furnace body to the oven wraps up thermal-insulated heat preservation, regeneration furnace body outer wall side sets up the inlet pipe, the inlet pipe is connected with the roasting chamber, regeneration furnace body top lid closes the bell, bell top facility flue gas discharge port, flue gas discharge port's the end of advancing the cigarette sets up the flue gas kuppe. The utility model discloses a department sets up the flue gas kuppe in the import of exhanst gas port for the flue gas increases at high temperature flue gas layer dwell time, fully burns the flue gas, reaches emission standard.

Description

Used sand regeneration system

Technical Field

The utility model relates to a used sand regeneration technology especially relates to used sand regeneration system.

Background

China is a big casting producing country, wherein sand casting accounts for 80-90%. 1.3-1.5 tons of new sand are consumed when 1 ton of qualified castings are produced, the same amount of waste sand is produced, high-quality ore sand resources in China are deficient, and excessive exploitation of the new sand causes huge damage to natural resources.

The high-temperature thermal regeneration is to heat the used sand to the burning point of the adhesive film so as to completely burn the used sand. The thermal method regeneration process has an improved effect on the sand, so that the regenerated sand has better performance than new sand. However, the thermal regeneration method generates exhaust gas, and if the exhaust gas is not sufficiently combusted in a high-temperature layer, the exhaust gas is directly discharged into the air, so that pollution is increased.

Disclosure of Invention

According to the technical problem to be solved, a used sand regeneration system is provided.

For realizing the above-mentioned purpose, the utility model discloses a used sand regeneration system, including the regeneration furnace body, inside high temperature flue gas layer and the roasting chamber of being provided with of regeneration furnace body to the oven wraps up the thermal-insulated heat preservation, regeneration furnace body outer wall side sets up the inlet pipe, the inlet pipe is connected with the roasting chamber, regeneration furnace body top lid closes the bell, bell top facility flue gas discharge port, flue gas discharge port's the end of advancing the cigarette sets up the flue gas kuppe.

Furthermore, the heat-insulating layer does not adopt materials with the density of 0-240 kg/m for carrying out thin film cultivation.

Furthermore, the feeding pipe is made of stainless steel and is fixed in an inclined mode.

Furthermore, the flue gas guide cover is rectangular, through holes are formed in four corners of the flue gas guide cover, connecting bolts penetrate through the through holes and are fixed through nuts, and the other ends of the connecting bolts are connected to the furnace wall.

Further, the area of the flue gas guide sleeve is at least 2 times of the cross section of the flue gas discharge opening.

Furthermore, the flue gas guide cover is in a quadrangular pyramid shape, the cone tip is opposite to the flue gas discharge port, and the cone opening is opposite to the roasting chamber.

Has the advantages that: the utility model discloses a regeneration furnace body among used sand regeneration system, the high temperature layer lasts the temperature and does not change basically, and the flue gas is long at high temperature layer dwell time. The internal heat insulation layer adopts modular heat-resistant fibers, the blocks are combined more tightly, the surface flatness is good, the heat insulation effect is excellent, and the assembly and the maintenance are convenient.

Drawings

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

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

In the figure: 1 is a smoke guide plate; 2 is a connecting bolt; 3 is a heat insulation layer; 4 is a feeding pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

As shown in fig. 1, the used sand regeneration system comprises a regeneration furnace body, wherein a high-temperature flue gas layer and a roasting chamber are arranged in the regeneration furnace body, a heat insulation layer 3 is wrapped on the furnace wall, a feeding pipe 4 is arranged on the side surface of the outer wall of the regeneration furnace body, the feeding pipe 4 is connected with the roasting chamber, the top end of the regeneration furnace body is covered with a furnace cover, a flue gas discharge port is arranged at the top of the furnace cover, and a flue gas guide cover 1 is arranged at the smoke inlet end of the flue gas discharge port.

Wherein, send the used sand to the roasting chamber through inlet pipe 4, fully burn at the roasting chamber and obtain the new sand that is more excellent than the used sand performance, the abandonment of production rises to high temperature flue gas layer, discharges after the burning of high temperature flue gas layer thoroughly volatilizes volatile organic compounds.

As shown in FIG. 1, the heat-insulating layer 3 is not prepared from materials with a density of 0-240 kg/m through cultivation.

Wherein, the material with the density of more than 240 kg/m has better heat preservation performance and air tightness.

As shown in fig. 1, the feeding pipe 4 is made of stainless steel and is fixed in an inclined manner.

Wherein, the stainless steel material inlet pipe 4 is good in heat-resisting effect and is not easy to corrode or rust.

As shown in figure 1, the flue gas guide cover 1 is rectangular, through holes are formed in four corners of the flue gas guide cover, connecting bolts 2 penetrate through the through holes and are fixed through nuts, and the other ends of the connecting bolts 2 are connected to the furnace wall.

Wherein, flue gas kuppe 1 accessible bolt is adjusted from top to bottom, adjusts to the optimum position according to actual conditions.

As shown in fig. 1, the area of the flue gas guide sleeve 1 is at least 2 times of the section of the flue gas discharge opening.

Wherein, the larger the area of the flue gas guide cover 1, the longer the stroke of the flue gas entering the discharge port.

As shown in fig. 1, the flue gas guide sleeve 1 is in a quadrangular pyramid shape, the cone tip is opposite to a flue gas discharge port, and the cone mouth is opposite to a roasting chamber.

Wherein, set up flue gas kuppe 1 into the quadrangular pyramid to there is the cavity inside, when waste gas gets into, at first irritates the cavity and just can spill over, and gets into the discharge port, utilizes the cavity further to increase the stroke that waste gas got into the discharge port.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. Used sand regeneration system, including the regeneration furnace body, its characterized in that: the furnace is characterized in that a high-temperature flue gas layer and a roasting chamber are arranged in the regeneration furnace body, a heat insulation layer (3) is wrapped on the furnace wall, a feeding pipe (4) is arranged on the side surface of the outer wall of the regeneration furnace body, the feeding pipe (4) is connected with the roasting chamber, the top end of the regeneration furnace body is covered with a furnace cover, a flue gas discharge port is arranged at the top of the furnace cover, and a flue gas guide cover (1) is arranged at the smoke inlet end of the flue gas discharge port.

2. The used sand reclamation system as recited in claim 1, wherein: the feeding pipe (4) is made of stainless steel and is obliquely fixed.

3. The used sand reclamation system as recited in claim 1, wherein: the flue gas guide sleeve (1) is rectangular, through holes are formed in four corners of the flue gas guide sleeve, connecting bolts (2) penetrate through the through holes and are fixed through nuts, and the other ends of the connecting bolts (2) are connected to the furnace wall.

4. The used sand reclamation system as recited in claim 1, wherein: the area of the flue gas guide sleeve (1) is at least 2 times of the section of the flue gas discharge port.

5. The used sand reclamation system as recited in claim 1, wherein: the flue gas guide sleeve (1) is in a quadrangular pyramid shape, the cone tip is opposite to a flue gas discharge port, and the cone opening is opposite to a roasting chamber.