Improved sand raking device of large air separation plant

Abstract

The utility model discloses an improved sand raking device of large-scale air separation equipment, and particularly relates to the field of air separation equipment, which comprises a movable base, a water tank is supported at the top end of the movable base, a heater is connected onto the water tank, a support plate is supported on one side of the top end of the water tank, and a water conveying pipe is mounted on the support plate. One end of the water conveying pipe is rotatably connected with a sand raking assembly, the other end of the water conveying pipe is provided with a connecting pipe, one end of the connecting pipe is connected with a water pump, the water pumping end of the water pump is arranged in the water tank, a driving assembly is installed on the supporting plate, and the output end of the driving assembly is in meshed connection with the outside of one end of the sand raking assembly. The connecting pipe is a stainless steel pipe, and a shaft sleeve is connected between the connecting pipe and the sand raking assembly. The device can directly and conveniently move and directly go deep into a pearlife discharging end, pearlife can be rapidly raked out in the mode that stirring conveying is matched with hot water melting, and sand raking convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation equipment, and more specifically, to an improved sand scraping device for large-scale air separation equipment. Background Art

[0002] In recent years, with the continuous expansion of steel enterprises and the rapid development of the chemical industry, air separation units have gradually become larger and larger. Currently, the largest oxygen production equipment has reached 90,000m 3 / h level. As the air separation unit is gradually enlarged, the height of the air separation cold box is getting higher and higher, 20000m 3 / h-level air separation towers have reached more than 50 meters. Therefore, it is not easy to control the flow rate of pearl sand when sand stripping from the first platform. If the flow rate is too fast or contains cryogenic liquid, it may cause irreversible consequences during the sand stripping process. At the same time, the extension of the equipment operation cycle and maintenance cycle makes the internal situation of the equipment more and more complicated during each equipment maintenance. During the sand stripping maintenance of large air separation units, air separation cold box sand explosion accidents may occur, causing many personal injuries and deaths. In order to ensure safety in production, it is very necessary to solve the safety hazards in the sand stripping maintenance of air separation equipment in the steel and metallurgical industry.

[0003] In the prior art, there are methods of discharging cold air and preventing freezing by setting a fan that exhausts air downwards at the pearl sand discharge end, and removing the frozen pearl sand by impacting it. However, in the above prior art, there are still problems such as poor cold air discharge efficiency, failure to ensure that the pearl sand will not freeze, insufficient removal during impacting, and easy omission of corners, so further improvement is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an improved sand scraping device for large-scale air separation equipment.

[0005] The utility model is realized through the following technical solutions:

[0006] An improved sand scraping device for large air separation equipment comprises a mobile base, a water tank is supported on the top of the mobile base, a heater is connected to the water tank, a support plate is supported on one side of the top of the water tank, a water pipe is installed on the support plate, one end of the water pipe is rotatably connected to a sand scraping assembly, a connecting pipe is installed on the other end of the water pipe, one end of the connecting pipe is connected to a water pump, the water pumping end of the water pump is arranged in the water tank, a driving assembly is installed on the support plate, and the output end of the driving assembly is externally meshed with one end of the sand scraping assembly.

[0007] By moving the mobile base, the end of the sand scraping assembly is inserted into the pearl sand discharge place, and then the heater is used to heat the water in the water tank, and the water pump is used to pump the hot water. After the hot water enters the connecting pipe, it is transported from the water pipe to the sand scraping assembly and sprayed out from the sand scraping assembly. In the process of the driving assembly driving the sand scraping assembly to rotate, the sprayed hot water can accelerate the melting speed of the frozen pearl sand, thereby improving the sand scraping efficiency, and allowing the hot water to be sprayed to the dead corner, so as to melt the frozen pearl sand in the dead corner of the discharge end of the air separation equipment, thereby facilitating cleaning.

[0008] According to the above technical solution, preferably, the connecting pipe is a stainless steel pipe, and a sleeve is connected between the connecting pipe and the sand scraping assembly.

[0009] According to the above technical solution, preferably, the sand scraping assembly includes a rotating drum, one end of which is sleeved on the outside of the shaft sleeve; an auger, which is arranged on the outside of the rotating drum; a gear sleeve, which is welded to one end of the rotating drum; and a plurality of water spray outlets, each of which is evenly arranged on the rotating drum.

[0010] According to the above technical solution, preferably, the driving assembly includes a motor, which is mounted on the support plate; a rotating rod, which is rotatably mounted on the support plate and one end of the rotating rod is connected to the output end of the motor; and a driving gear, which is coaxially mounted on the other end of the rotating rod.

[0011] According to the above technical solution, preferably, the driving gear is meshingly connected with the gear sleeve, and the rotating rod is arranged parallel to the rotating drum.

[0012] According to the above technical solution, preferably, four moving wheels are arranged at the bottom of the moving base, and the four moving wheels are respectively installed at the four corners of the bottom end of the moving base.

[0013] Technical effects and advantages of the utility model:

[0014] Compared with the prior art, the motor, the rotating rod, the driving gear, the rotating drum, the gear sleeve and the auger are arranged. The gear sleeve is driven by the driving assembly to rotate the rotating drum, thereby rotating the auger, so that the auger can crush the frozen pearl sand at the discharge end and automatically transport it outward, thereby improving the sand removal efficiency and the cleaning efficiency.

[0015] Through the arrangement of the water tank, heater, water pump, connecting pipe, delivery pipe, shaft sleeve, rotating drum and water spraying nozzle, compared with the prior art, the water in the water tank heated by the heater can enter the connecting pipe under the pumping of the water pump, then enter the rotating drum from the water delivery pipe, and be sprayed out from the water spraying nozzle, so that the hot water can be sprayed on the frozen pearl sand to accelerate the melting speed of the pearl sand, so that the auger can more easily crush and transport the pearl sand, thereby further improving the sand scraping efficiency, and at the same time, the hot water can be sprayed to the dead corner, so that the frozen pearl sand in the dead corner of the discharge end of the air separation equipment can be melted, so as to facilitate cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of the connection structure of the sand scraping component and the driving component of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the sand scraping component of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the drive assembly of the utility model.

[0021] The accompanying drawings are marked as follows: 1. Mobile base; 2. Water tank; 3. Heater; 4. Water pump; 5. Connecting pipe; 6. Support plate; 7. Water pipe; 8. Sand scraping assembly; 801. Rotating drum; 802. Auger; 803. Gear sleeve; 804. Water spray nozzle; 9. Driving assembly; 901. Motor; 902. Rotating rod; 903. Driving gear; 10. Bushing. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] As attached Figure 1-5 An improved large-scale air separation equipment sand scraping device is shown, comprising a mobile base 1, the top of the mobile base 1 supports a water tank 2, the water tank 2 is connected to a heater 3, the top side of the water tank 2 supports a support plate 6, a water pipe 7 is installed on the support plate 6, one end of the water pipe 7 is rotatably connected to a sand scraping assembly 8, the other end of the water pipe 7 is installed with a connecting pipe 5, one end of the connecting pipe 5 is connected to a water pump 4, the water pumping end of the water pump 4 is arranged in the water tank 2, a driving assembly 9 is installed on the support plate 6, the output end of the driving assembly 9 is externally meshed with one end of the sand scraping assembly 8, the connecting pipe 5 is a stainless steel pipe, a shaft sleeve 10 is connected between the connecting pipe 5 and the sand scraping assembly 8, and four moving wheels are arranged at the bottom of the mobile base 1, and the four moving wheels are respectively installed at the four corners of the bottom end of the mobile base 1.

[0026] During the specific implementation, the mobile base 1 is moved so that the end of the sand scraping component 8 is inserted into the pearl sand discharge place, and then the heater 3 is used to heat the water in the water tank 2, and the water pump 4 pumps the hot water so that the hot water enters the connecting pipe 5 and is transported from the water pipe 7 to the sand scraping component 8 and sprayed out from the sand scraping component 8. In the process of the driving component 9 driving the sand scraping component 8 to rotate, the sprayed hot water can accelerate the melting speed of the frozen pearl sand, thereby improving the sand scraping efficiency, and allowing the hot water to be sprayed to the dead corner, so that the frozen pearl sand in the dead corner of the discharge end of the air separation equipment can be melted, thereby facilitating cleaning.

[0027] As attached Figure 4As shown, the sand-scraping assembly 8 includes a rotating drum 801, one end of which is sleeved on the outside of the shaft sleeve 10; an auger 802, which is arranged on the outside of the rotating drum 801; a gear sleeve 803, which is welded on one end of the rotating drum 801; and a plurality of water spray outlets 804, each of which is evenly arranged on the rotating drum 801.

[0028] During specific implementation, the gear sleeve 803 is driven by the driving component 9 to rotate the drum 801, thereby causing the auger 802 to rotate, which can enable the auger 802 to crush the frozen pearlescent sand at the discharge end and automatically transport it outward, thereby improving the sand-scraping efficiency. The water spray port 804 is arranged so that the water heated in the water tank 2 by the heater 3 can enter the connecting pipe 5 under the pumping of the water pump 4, and then enter the drum 801 from the water pipe 7 and be sprayed out from the water spray port 804, so that the hot water can be sprayed on the frozen pearlescent sand, so as to accelerate the melting speed of the pearlescent sand, thereby making it easier for the auger 802 to crush and transport the pearlescent sand, thereby further improving the sand-scraping efficiency.

[0029] As attached Figure 5 As shown, the driving assembly 9 includes a motor 901, which is mounted on the support plate 6; a rotating rod 902, which is rotatably mounted on the support plate 6, and one end of the rotating rod 902 is connected to the output end of the motor 901; a driving gear 903, which is coaxially mounted on the other end of the rotating rod 902, the driving gear 903 is meshed with the gear sleeve 803, and the rotating rod 902 is arranged parallel to the rotating drum 801.

[0030] During specific implementation, the motor 901 is operated to rotate the rotating rod 902 , so that the driving gear 903 can drive the gear sleeve 803 to rotate, thereby causing the auger 802 to rotate.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An improved large-scale air separation equipment sand removal device, comprising a mobile base (1), characterized in that: The top of the mobile base (1) supports a water tank (2), a heater (3) is connected to the water tank (2), a support plate (6) is supported on one side of the top of the water tank (2), a water pipe (7) is installed on the support plate (6), one end of the water pipe (7) is rotatably connected to a sand scraping assembly (8), the other end of the water pipe (7) is installed with a connecting pipe (5), one end of the connecting pipe (5) is connected to a water pump (4), the water pumping end of the water pump (4) is arranged in the water tank (2), a driving assembly (9) is installed on the support plate (6), and the output end of the driving assembly (9) is externally meshed and connected with one end of the sand scraping assembly (8).

2. The improved large-scale air separation equipment sand-scraping device according to claim 1 is characterized in that: The connecting pipe (5) is a stainless steel pipe, and a shaft sleeve (10) is connected between the connecting pipe (5) and the sand scraping assembly (8).

3. An improved large-scale air separation equipment sand-scraping device according to claim 2, characterized in that: The sand scraping assembly (8) comprises a rotating drum (801), one end of which is sleeved on the outside of the shaft sleeve (10); An auger (802), wherein the auger (802) is arranged outside the drum (801); A gear sleeve (803), wherein the gear sleeve (803) is welded to one end of the rotating drum (801); A plurality of water spray ports (804) are evenly arranged on the rotating drum (801).

4. The improved large-scale air separation equipment sand scraping device according to claim 3 is characterized in that: The driving assembly (9) comprises a motor (901), and the motor (901) is mounted on a support plate (6); A rotating rod (902), wherein the rotating rod (902) is rotatably mounted on the support plate (6), and one end of the rotating rod (902) is connected to an output end of the motor (901); A driving gear (903) is coaxially mounted on the other end of the rotating rod (902).

5. An improved large-scale air separation equipment sand scraping device according to claim 4, characterized in that: The driving gear (903) is meshedly connected with the gear sleeve (803), and the rotating rod (902) is arranged in parallel with the rotating drum (801).

6. An improved large-scale air separation equipment sand scraping device according to claim 5, characterized in that: The bottom of the mobile base (1) is provided with four mobile wheels, which are respectively installed at the four corners of the bottom end of the mobile base (1).

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