CN218079527U - Odor collecting system for sand casting workshop - Google Patents

Abstract

The application relates to the field of industrial waste gas collection and treatment, and provides a sand casting workshop odor collection system which comprises a side suction system, a top suction system, a collection pipe network and a collection header pipe; the side suction system and the top suction system are both connected with the collecting pipe network, the tail end of the collecting pipe network is connected with the collecting main pipe, and the collecting main pipe is connected into a subsequent waste gas purification treatment device; the application provides an odor collecting system to the actual space condition in sand casting trade casting shop, designs the side suction and the top suction system pertinently to form good airtight space and distribution pattern, thereby improve the efficiency that waste gas was collected greatly, purified the operational environment in shop, reduced the emission of unorganized waste gas and revealed and the atmosphere pollution that causes.

Description

Odor collecting system for sand casting workshop

Technical Field

The application relates to the technical field of industrial waste gas collection and treatment, in particular to a workshop odor collection system in sand casting industry.

Background

The waste gas generated in the sand casting industry mainly comes from a casting line, and the waste gas of the casting line mainly comes from the technological links of casting, sand core cooling, manipulator transportation and the like. The main pollutants in the waste gas are particles, odor and volatile organic compounds, wherein the particles are mainly viscous resin and dust particles, and the odor and the volatile organic compounds are from core-making raw materials, release agents and the like. The odor is typified by ammonia, triethylamine, and the like, and the volatile organic compounds are typified by aromatic hydrocarbons, esters, alcohols, olefins, and the like.

On a casting production line, due to process requirements, inorganization odor emission exists in the links of casting, cooling, manipulator transportation and the like. In order to reduce air pollution, it is necessary to collect and treat these odors as intensively as possible. In the actual production of a workshop, the space environment of the process links cannot be wholly sealed, the top suction covers are difficult to be arranged at all positions, and the centralized collection is realized only by the top suction covers, so that certain difficulty is brought to the full collection and the subsequent treatment of the waste gas in the workshop. Exhaust gas discharged by production cannot be completely collected, and the leaked exhaust gas can bring air pollution to a production workshop and the periphery of a factory and cause harm to workers in the workshop and residents around the factory.

In the prior art, the collection method of these inorganically discharged waste gases usually adopts the arrangement of a gas-collecting hood in a certain space or the arrangement of an air-sucking hood at a certain station for local collection. However, the collection modes are often poor in sealing effect, large in local cover size and far away from a workpiece, and the problems that odor cannot be collected when a manipulator works in an open space and the like exist, so that waste gas collection efficiency is low, waste gas is leaked and discharged outwards, and the workshop working environment and the peripheral environment of a factory are still harmed.

SUMMERY OF THE UTILITY MODEL

The application provides a sand casting workshop odor collecting system to solve in the sand casting trade casting workshop, waste gas is difficult to fully collect the processing, causes the atmosphere pollution, influences the problem of workshop operational environment and peripheral people living environment.

The utility model provides a sand casting workshop odor collection system, including side suction system, top suction system, collection pipe network, collection house steward; the side suction system and the top suction system are both connected with the collecting pipe network, the tail end of the collecting pipe network is connected with the collecting main pipe, and the collecting main pipe is connected into a subsequent waste gas purification treatment device;

the side suction system comprises a side suction cover connected with an axial flow fan; the side suction covers are arranged on the station operating platform, the manipulator area and the cooling area; the top suction system comprises a top suction cover connected with an axial flow fan, and the top suction cover is arranged at the top of a building structure in each area of a workshop.

Optionally, the side suction system is further connected to a thermometer and an automatic valve, and the thermometer monitors the exhaust gas temperature and is used for triggering the automatic valve to close when the temperature is abnormal.

Optionally, a fire damper is further disposed in the collection pipe network, and is used for automatically closing the running of the odor collection system when a fire occurs.

Optionally, the top suction system is further disposed at a top of a station operating platform formed by a sliding door in a non-vertical direction.

Optionally, the collecting pipe network further comprises an air suction opening, the air suction opening is respectively arranged in a melting area and an unloading area which are formed by automatic opening and closing of the door, and the top suction system collects waste gas in the melting area and the unloading area through the air suction opening.

According to the scheme, the odor collecting system provided by the application has the advantages that the odor collecting system is distributed and collected through the side suction pipe, the top suction pipe and the collecting pipe network, then, the concentrated exhaust gas enters the main pipe and is discharged into the exhaust gas treatment system, and a good airtight collecting effect is formed; aiming at the actual space condition of a casting workshop in the sand casting industry, the side suction system and the top suction system are designed in a targeted manner, and a good closed space and a good distribution pattern are formed, so that the waste gas collection efficiency is greatly improved, the working environment of the workshop is purified, and the air pollution caused by the emission and leakage of unorganized waste gas is reduced. In addition, the collecting system is provided with the axial flow fan, so that backflow of odor can be avoided; a thermometer and a fire-proof valve are also arranged to prevent abnormal high-temperature risks; when a fire disaster occurs, the collecting system can be automatically closed, the safety of the production environment is protected, and the effects of disaster prevention and reduction are achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the odor collection system of an embodiment of the present application;

FIG. 2 is a schematic top view of a side-view suction system according to an embodiment of the present application;

fig. 3 is a schematic front view direction spatial position diagram of the side suction system according to the embodiment of the present application.

In the figure, 1-a first station, 2-a second station, 3-a third station, 4-a mechanical arm, 5-a cooling zone, 6-a melting zone, 7-a discharging zone, 8-a collecting header pipe, 9-a top suction cover, 10-an axial flow fan, 11-a side suction cover, 12-a first automatic opening and closing door, 13-a second automatic opening and closing door, 14-a sliding door and 15-a production zone.

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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the system for collecting odor in a sand casting plant according to the embodiment of the present invention comprises a top suction system, a side suction system, a collecting pipe network and a collecting main pipe 8. In this embodiment, the collecting system mainly collects odors of the first station 1, the second station 2, the third station 3, the manipulator 4, the cooling zone 5, the melting zone 6, the discharging zone 7, the production zone 15, and the like.

In the actual production workshop environment of this embodiment, the robot 4 is operated at the top of the building structure of the three stations 1, 2 and 3, so that the top suction hood 9 cannot be arranged in the top space in the direction perpendicular to the operation table, the robot 4 cannot collect odor during the movement, the cooling area 5 and the melting area 6 cannot be sealed due to the transportation of workpieces, and the unloading area 7 cannot be sealed and collected due to the unloading of workpieces. In the embodiment, in combination with actual production needs, a side suction system including a side suction cover 11 and an axial flow fan 10 is arranged near operation tables of a first station 1, a second station 2 and a third station 3, and is connected to a collection header pipe 8 through a collection pipe network; meanwhile, in the areas of the first station 1, the second station 2 and the third station 3, a sliding door 14 is arranged, and the casting workshop is integrally sealed. In the embodiment, the size of the side suction hood opening is 200-500mm, the horizontal distance between the hood opening and the workpiece is 200-400mm, the height difference between the hood opening and the workpiece is 200-400mm, the flow rate of the hood opening is 6-15 m/s, and the odor collection efficiency is more than 85%.

The top suction system is arranged at the top of a building structure in each area of a workshop and comprises a top suction cover 9, an axial flow fan 10 is arranged at the position of a main pipe, and the top suction system is connected into a collection pipe network and then connected into a collection main pipe 8. In this embodiment, the top suction system is distributed on the top of the closed space where the first station 1, the second station 2 and the third station 3 formed by arranging the sliding doors are located, and is located in the non-vertical direction of the station operating platform, so as to avoid the moving manipulator 4.

The collecting pipe network further comprises an air suction opening, the air suction opening is arranged in a melting area 6 and an unloading area 7 which are formed by automatically opening and closing doors, and the top suction system collects waste gas of the melting area 6 and the unloading area 7 through the air suction opening.

A top suction hood 9 connected with the suction opening of the melting zone 6 is arranged at the top of the production zone 15; the size of the opening of the top suction cover 9 can be 500-800mm, and the diameter of the collecting pipe network pipeline is 400-600mm;

the top suction hood 9 connected with the suction inlet of the discharging area 7 is arranged at the top of the areas where the working area of the manipulator 4 and the cooling area 5 are located, and the flue gas in the areas where the manipulator 4 and the cooling area 5 are located is collected and absorbed through a collecting pipe network; in the actual production, the smoke amount is often large, the size of the opening of the top suction hood 9 can be 1200-1500mm, and the diameter of the collecting pipeline is 600-800mm. In addition, the side suction system including the side suction hood 11 and the axial flow fan is also arranged in the area where the cooling zone 5 is located, and is connected into the collection header 8 through a collection pipe network. In the area, by compressing the closed space, the odor collection efficiency is greatly improved under the condition that the whole tightness is well made when the flow rate of the section of the flue gas is 0.1-0.25 m/s.

In the embodiment, the caliber of the side suction hood 11 can be 200-500mm, the horizontal distance between the hood opening and the workpiece is 200-400mm, the height difference between the hood opening and the workpiece is 200-400mm, the flow rate of the hood opening is 6-15 m/s, and the odor collection efficiency is higher than 85% through tests.

In addition, a thermometer is also arranged on a main pipe of a collecting pipe network connected with the side suction system, and when the temperature exceeds 70 ℃, an automatic valve is closed in a linkage manner, so that the risk of abnormal high temperature is prevented; the collection pipe network is provided with a fire damper, and the fire damper is closed when the temperature exceeds 70 ℃, so that abnormal high-temperature risks are prevented. With the odor collection system of the present embodiment, the odor collection efficiency is greater than 90%.

The present application has been described in detail with reference to particular embodiments and illustrative examples, but the description is not intended to be construed as limiting the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the embodiments and implementations thereof without departing from the spirit and scope of the present application, and are within the scope of the present application. The protection scope of this application is subject to the appended claims.

Claims (5)

1. A sand casting workshop odor collecting system is characterized by comprising a side suction system, a top suction system, a collecting pipe network and a collecting main pipe; the side suction system and the top suction system are both connected with the collecting pipe network, the tail end of the collecting pipe network is connected with the collecting main pipe, and the collecting main pipe is connected into a subsequent waste gas purification treatment device;

the side suction system comprises a side suction cover connected with an axial flow fan; the side suction covers are arranged on the station operating platform, the manipulator area and the cooling area; the size of a side suction cover opening is 200-500mm, the horizontal distance between the cover opening and a workpiece is 200-400mm, and the height difference between the cover opening and the workpiece is 200-400mm;

the top suction system comprises a top suction cover connected with an axial flow fan, and the top suction cover is arranged at the top of building structures in each area of a workshop.

2. The odor collection system according to claim 1 wherein said side draw system is further connected to a thermometer and an automatic valve, said thermometer monitoring exhaust gas temperature for triggering closure of said automatic valve in the event of a high temperature anomaly.

3. The odor gas collection system according to claim 1 wherein a fire damper is further provided in said collection pipe network for automatically shutting down operation of said odor gas collection system in the event of a fire.

4. The odor collection system according to claim 1 wherein said ceiling suction system is further disposed at a non-vertical top portion of a workstation console formed with a sliding door.

5. The odor gas collection system according to claim 1 wherein said collection pipe network further comprises air suction openings disposed in said melting zone and said discharge zone formed by automatic opening and closing of said doors, respectively, said top suction system collecting said melting zone and said discharge zone of said exhaust gases through said air suction openings.

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