MTO-grade methanol production device

Abstract

The utility model discloses an MTO-grade methanol production device, which relates to the technical field of methanol production, and comprises a base, the left side of the upper end of the base is fixedly connected with a shell, the right side of the upper end of the base is fixedly connected with a supporting plate, the upper end of the supporting plate is provided with an impurity removal assembly, and the impurity removal assembly comprises an impurity removal box. The lower end of the impurity removal box is fixedly connected with the upper end of the supporting plate, a limiting groove is formed in the front end of the impurity removal box, a movable frame slides in the limiting groove, and separated and purified methanol enters the impurity removal box from the interior of a second cavity through a connecting pipe under the action of a second air pump; residual trace organic impurities and metal ions can be further separated by an organic membrane arranged in the impurity removal box, so that the purity of the methanol is improved again, and then the methanol is conveyed into external storage equipment through a second gas inlet pipe and a second gas outlet pipe, so that the methanol can reach the strict MTO-grade quality standard.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of methanol production technology, specifically to a kind of MTO grade methanol production device. BACKGROUND

[0002] MTO grade methanol production device is the device that raw material such as natural gas or coal is converted into the methanol product meeting the requirement of MTO process after a series of complex physical and chemical processes, in the MTO grade methanol production process, it needs to be converted into synthesis gas, synthesis gas synthesis methanol, and carry out separation and purification etc., among them, the methanol synthesized by synthesis gas is crude methanol, and the crude methanol contains dimethyl ether, higher alcohol and other impurities, so it needs to be separated and purified.

[0003] Although the purity has been greatly improved after separation and purification in most production devices, trace amounts of organic impurities and metal ions may remain in methanol, thereby directly affecting the purity of methanol, so that it cannot meet the strict quality standards of MTO grade methanol, and further depth impurity removal is required, based on this, the present scheme provides a kind of MTO grade methanol production device to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, a MTO grade methanol production device is provided, which solves the problem that in the background art, most production devices have greatly improved purity after separation and purification, but trace amounts of organic impurities and metal ions may remain in methanol, thereby directly affecting the purity of methanol, so that it cannot meet the strict quality standards of MTO grade methanol, and further depth impurity removal is required.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of: a kind of MTO grade methanol production device, including base, the upper end left side of the base is fixedly connected with shell, the upper end right side of the base is fixedly connected with support plate, the upper end of the support plate is equipped with impurity removal assembly, the impurity removal assembly includes impurity removal box, the lower end of the impurity removal box is fixedly connected with the upper end of support plate, the front end of the impurity removal box is equipped with limiting slot, the inside of the limiting slot is slidably provided with movable frame, the inside of the movable frame is equipped with organic membrane, the front end of the movable frame is fixedly connected with handle, the upper end of the support plate is fixedly connected with the right side of impurity removal box and is equipped with second air pump, the output end of the second air pump is fixedly communicated with second air outlet pipe, the input end of the second air pump is fixedly communicated with second air inlet pipe, the left end of the second air inlet pipe is communicated with the inside of impurity removal box, the left end of the connecting pipe is fixedly communicated with the impurity removal box, the outer surface of the connecting pipe is fixedly installed with the fifth electromagnetic valve, the inside upper and lower sides of the shell are fixedly connected with baffle, first cavity is equipped between the two baffle, second cavity is equipped between the lower side baffle and the inside lower end of shell, the left end of the connecting pipe is communicated with the inside of second cavity.

[0006] Preferably, the upper end of the upper partition is fixedly connected with a water tank, the inner side walls of the left and right ends of the water tank are provided with temperature adjusting devices, the inner side wall of the rear end of the water tank is provided with a first temperature sensor, and the inside of the water tank is provided with a serpentine conveying pipe.

[0007] Preferably, the upper end of the right side of the shell is fixedly provided with a first air pump, the input end of the first air pump is fixedly communicated with a first air inlet pipe, the output end of the first air pump is fixedly communicated with a first air outlet, the lower end of the first air outlet penetrates into the inside of the water tank and is communicated with the upper end of the serpentine conveying pipe, the lower end of the serpentine conveying pipe is fixedly communicated with a first guide pipe, and the first guide pipe penetrates into the inside of the first cavity.

[0008] Preferably, the lower end of the right side of the two partitions is provided with a second temperature sensor, and the lower end of the left side of the two partitions is provided with a heating assembly, the heating assembly comprises a fixed frame, the upper end of the fixed frame is fixedly connected with the lower end of the partition, a heater is fixedly installed in the inside of the fixed frame, and a heat-conducting plate is fixedly connected with the lower end of the fixed frame.

[0009] Preferably, the inside of the lower partition is fixedly provided with a second guide pipe, the upper and lower ends of the second guide pipe are respectively communicated with the inside of the first cavity and the second cavity, and a second electromagnetic valve is fixedly installed on the outer surface of the second guide pipe and the lower end of the lower partition.

[0010] Preferably, the left end of the water tank is fixedly communicated with a water outlet pipe, the water outlet pipe penetrates into the outside of the shell, a first electromagnetic valve is fixedly installed on the outer surface of the water outlet pipe, the upper end of the right side of the water tank is fixedly communicated with a water inlet pipe, and the upper end of the water inlet pipe penetrates into the upper part of the shell and is threadedly connected with a sealing cover.

[0011] Preferably, the inside of the left end of the shell and the lower part of the water outlet pipe are fixedly provided with a first exhaust pipe, the right end of the first exhaust pipe is communicated with the inside of the first cavity, and a third electromagnetic valve is fixedly installed on the outer surface of the first exhaust pipe.

[0012] Preferably, the inside of the left end of the shell and the lower part of the first exhaust pipe are fixedly provided with a third guide pipe, the right end of the third guide pipe is communicated with the inside of the second cavity, and a fourth electromagnetic valve is fixedly installed on the outer surface of the third guide pipe.

[0013] Compared with the prior art, the MTO-grade methanol production device has the following beneficial effects:

[0014] The purified methanol is under the action of the second air pump, enters the inside of the impurity removal box from the connecting pipe, the organic film arranged in the inside of the impurity removal box can further separate the trace organic impurities and metal ions, so that the purity of the methanol is improved again, and then the methanol is transported to the external storage device through the second air inlet pipe and the second air outlet pipe, so that the methanol can reach the strict quality standard of MTO level. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a structure schematic view of the inside of the shell in the utility model;

[0017] Figure 3 It is a structure schematic view of the partition plate in the utility model;

[0018] Figure 4 It is a structure schematic view of the impurity removal assembly in the utility model;

[0019] Figure 5 It is a structure schematic view of the heating assembly in the utility model.

[0020] Reference numerals in the drawing are:

[0021] 1, base; 2, shell; 3, first cavity; 4, impurity removal assembly; 41, impurity removal box; 42, limiting groove; 43, movable frame; 44, organic film; 45, handle; 5, second cavity; 6, water tank; 7, temperature adjusting device; 8, first temperature sensor; 9, serpentine conveying pipe; 10, water outlet pipe; 11, first electromagnetic valve; 12, water inlet pipe; 13, sealing cover; 14, first air pump; 15, first air outlet; 16, first air inlet pipe; 17, first conduit; 18, partition plate; 19, second temperature sensor; 20, heating assembly; 201, fixed frame; 202, heater; 203, heat-conducting plate; 21, second conduit; 22, second electromagnetic valve; 23, first air outlet pipe; 24, third electromagnetic valve; 25, third conduit; 26, fourth electromagnetic valve; 27, second air pump; 28, second air outlet pipe; 29, second air inlet pipe; 30, connecting pipe; 31, fifth electromagnetic valve; 32, support plate. DETAILED DESCRIPTION

[0022] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0023] Reference Figures 1-5As shown, an MTO grade methanol production device includes a base 1, the upper end of the base 1 is fixedly connected with a shell 2 on the left side, the upper end of the base 1 is fixedly connected with a support plate 32 on the right side, the upper end of the support plate 32 is provided with a impurity removal assembly 4, the impurity removal assembly 4 includes a impurity removal box 41, the lower end of the impurity removal box 41 is fixedly connected with the upper end of the support plate 32, the front end of the impurity removal box 41 is provided with a limiting groove 42, the inside of the limiting groove 42 is slidably provided with a movable frame 43, the inside of the movable frame 43 is provided with an organic membrane 44, the organic membrane 44 can prevent impurities from passing through according to the pore size and selectivity of the membrane, while allowing methanol molecules to pass through, realizing efficient separation, and further separating trace amounts of organic impurities and metal ions, thereby further improving the purity of the methanol, the front end of the movable frame 43 is fixedly connected with a handle 45, the movable frame 43 can be taken out from the inside of the limiting groove 42 through the handle 45, thereby facilitating replacement of the organic membrane 44, the upper end of the support plate 32 is fixedly connected with a second air pump 27 on the right side of the impurity removal box 41, the output end of the second air pump 27 is fixedly communicated with a second gas outlet pipe 28, the input end of the second air pump 27 is fixedly communicated with a second gas inlet pipe 29, the left end of the second gas inlet pipe 29 is in communication with the inside of the impurity removal box 41, the left end of the impurity removal box 41 is fixedly communicated with a connecting pipe 30, the outer surface of the connecting pipe 30 is fixedly installed with a fifth electromagnetic valve 31, the inside of the shell 2 is fixedly connected with a partition plate 18 on both sides, a first cavity 3 is arranged between the two partition plates 18, a second cavity 5 is arranged between the lower partition plate 18 and the lower end of the inside of the shell 2, dimethyl ether is separated through the first cavity 3, methanol and higher alcohols are separated out through the second cavity 5, the left end of the connecting pipe 30 is in communication with the inside of the second cavity 5, the upper end of the upper partition plate 18 is fixedly connected with a water tank 6, the upper end of the water tank 6 is in abutment with the inner side wall of the upper end of the shell 2, the left and right ends of the water tank 6 are in abutment with the left and right inner side walls of the shell 2 respectively, temperature adjusting devices 7 are arranged on the left and right inner side walls of the water tank 6, a first temperature sensor 8 is arranged on the rear inner side wall of the water tank 6, the cooling water in the water tank 6 can be adjusted to above 194.4°C through the temperature adjusting devices and the temperature sensor, at this time, the methanol, dimethyl ether and higher alcohols all become liquid and fall into the inside of the first cavity 3 from the first conduit 17, the inside of the water tank 6 is provided with a serpentine conveying pipe 9, the upper end of the right side of the shell 2 is fixedly installed with a first air pump 14, the input end of the first air pump 14 is fixedly communicated with a first gas inlet pipe 16, the output end of the first air pump 14 is fixedly communicated with a first gas outlet 15, the lower end of the first gas outlet 15 penetrates into the inside of the water tank 6 and is in communication with the upper end of the serpentine conveying pipe 9, the lower end of the serpentine conveying pipe 9 is fixedly communicated with a first conduit 17, the first conduit 17 penetrates into the inside of the first cavity 3.

[0024] Referring to Figure 2 , Figure 3 and Figure 5As shown, the lower right side of the two partitions 18 is provided with a second temperature sensor 19, the second temperature sensor 19 and the first temperature sensor 8 can adopt the model: WZP-230, the sensor can adopt the sensor that can realize the function in the prior art, not limited, the lower left side of the two partitions 18 is provided with a heating assembly 20, the heating assembly 20 and the second temperature sensor 19 on the upper and lower sides are respectively independently operated, the heating assembly 20 comprises a fixed frame 201, the upper end of the fixed frame 201 is fixedly connected with the lower end of the partition 18, the inside of the fixed frame 201 is fixedly installed with a heater 202, the lower end of the fixed frame 201 is fixedly connected with a heat conduction plate 203, the heat conduction plate 203 is provided with a sealing gasket between the fixed frame 201, the inside of the lower partition 18 is fixedly installed with a second conduit 21, the upper and lower ends of the second conduit 21 are respectively connected with the inside of the first cavity 3 and the second cavity 5, the outer surface of the second conduit 21 is fixedly installed with a second electromagnetic valve 22 at the lower end of the lower partition 18, the left end of the water tank 6 is fixedly communicated with a water outlet pipe 10, the water outlet pipe 10 penetrates to the outside of the shell 2, the outer surface of the water outlet pipe 10 is fixedly installed with a first electromagnetic valve 11, the upper right side of the water tank 6 is fixedly communicated with a water inlet pipe 12, the upper end of the water inlet pipe 12 penetrates to the upper side of the shell 2 and is threadedly connected with a sealing cover 13, the temperature inside the first cavity 3 is higher than-24.9℃ and lower than 64.7℃ through the upper heating assembly 20 and the upper temperature sensor, at this time, the dimethyl ether in the liquid can be separated, then discharged through the first exhaust pipe 23, the remaining liquid is transported to the inside of the second cavity 5 through the second conduit 21, the temperature inside the second cavity 5 is higher than 64.7℃ and lower than 194.4℃ through the lower heating assembly 20 and the lower second temperature sensor 19, the methanol gas can be separated, collected and stored after impurity removal through the second pump, then the remaining higher alcohol is discharged through the third conduit 25, the left end inside the shell 2 is fixedly installed with a first exhaust pipe 23 below the water outlet pipe 10, the right end of the first exhaust pipe 23 is communicated with the inside of the first cavity 3, the outer surface of the first exhaust pipe 23 is fixedly installed with a third electromagnetic valve 24, the left end inside the shell 2 is fixedly installed with a third conduit 25 below the first exhaust pipe 23, the right end of the third conduit 25 is communicated with the inside of the second cavity 5, the outer surface of the third conduit 25 is fixedly installed with a fourth electromagnetic valve 26.

[0025] The utility model discloses a working principle and use flow: specific, external control device and first pump machine, second pump machine, first temperature sensor 8, second temperature sensor 19, first electromagnetic valve 11, second electromagnetic valve 22, third electromagnetic valve 24, fourth electromagnetic valve 26, temperature regulating device 7 and heater 202 are electrically connected, when using, first air pump 14 passes through first air inlet pipe 16 and first air outlet 15 and sends methanol gas to the inside of serpentine delivery pipe 9, and the cooling water in water tank 6 reduces methanol gas in the inside of serpentine delivery pipe 9 through temperature regulating device 7, thereby making gaseous methanol condense into liquid, then falls to the inside of first cavity 3 from first pipe 17, then heats the inside of first cavity 3 using upside heating assembly 20 and upside second temperature sensor 19, after heating to the suitable temperature, dimethyl ether in methanol liquid becomes gas, then opens third 24, makes it discharge casing 2 through first exhaust pipe 23, then opens second electromagnetic valve 22, and the residual methanol liquid falls to the inside of second cavity 5 through second pipe 21, and then heats the inside of second cavity 5 using downside heating assembly 20 and downside second temperature sensor 19, after heating to the suitable temperature, methanol liquid becomes gas, at this time, opens fifth electromagnetic valve 31, then uses external control device control second air pump 27 starts, under the negative pressure effect of second air pump 27, the gas in the inside of second cavity 5 enters the inside of impurity removal tank 41 through connecting pipe 30, and the organic membrane 44 arranged in the inside of impurity removal tank 41 intercepts organic impurity and metal ion on the left side of organic membrane 44, thereby can further carry out depth impurity removal to methanol gas, and the methanol gas after impurity removal is sent to storage device through second air outlet pipe 28, finally, opens fourth electromagnetic valve 26, and the high-grade alcohol liquid left in the inside of second cavity 5 is discharged casing 2 through third pipe 25.

[0026] The utility model discloses a working principle, main features and the advantages of the utility model are shown and described above. The technical personnel of this industry should understand, the utility model is not limited by above-mentioned embodiment, and above-mentioned embodiment and the description in specification are only the principle of the utility model, and the utility model still has various changes and improvements under the premise of not departing from the spirit and scope of the utility model, and these changes and improvements all fall into the range of the utility model claimed to be protected. The protection scope required by the utility model is defined by the attached claims and its equivalents.

Claims

1. An MTO grade methanol production plant characterized by: Including the base (1), the upper end left side of the base (1) is fixedly connected with the shell (2), the upper end right side of the base (1) is fixedly connected with the support plate (32), the upper end of the support plate (32) is equipped with the impurity removal assembly (4), the impurity removal assembly (4) includes the impurity removal box (41), the lower end of the impurity removal box (41) is fixedly connected with the upper end of the support plate (32), the front end of the impurity removal box (41) is provided with the limiting slot (42), the inside of the limiting slot (42) is slidably provided with the movable frame (43), the inside of the movable frame (43) is equipped with the organic film (44), the front end of the movable frame (43) is fixedly connected with the handle (45), the upper end of the support plate (32) is fixedly connected with the right side of the impurity removal box (41) and is provided with the second air pump (27), the output end of the second air pump (27) is fixedly communicated with the second air outlet pipe (28), the input end of the second air pump (27) is fixedly communicated with the second air inlet pipe (29), the left end of the second air inlet pipe (29) is communicated with the inside of the impurity removal box (41), the left end of the impurity removal box (41) is fixedly communicated with the connecting pipe (30), the outer surface of the connecting pipe (30) is fixedly installed with the fifth electromagnetic valve (31), the inside of the shell (2) is fixedly connected with the baffle (18) on the upper and lower sides, the first cavity (3) is arranged between the two baffles (18), the second cavity (5) is arranged between the lower baffle (18) and the lower end of the inside of the shell (2), and the left end of the connecting pipe (30) is communicated with the inside of the second cavity (5).

2. The MTO grade methanol production plant according to claim 1, characterized in that: The upper end of the upper baffle (18) is fixedly connected with the water tank (6), the left and right end inner walls of the water tank (6) are provided with temperature adjusting devices (7), the rear end inner wall of the water tank (6) is provided with a first temperature sensor (8), and the inside of the water tank (6) is provided with a serpentine conveying pipe (9).

3. The MTO grade methanol production plant of claim 1, wherein: The upper end right side of the shell (2) is fixedly installed with the first air pump (14), the input end of the first air pump (14) is fixedly communicated with the first air inlet pipe (16), the output end of the first air pump (14) is fixedly communicated with the first air outlet (15), the lower end of the first air outlet (15) penetrates into the inside of the water tank (6) and is communicated with the upper end of the serpentine conveying pipe (9), and the lower end of the serpentine conveying pipe (9) is fixedly communicated with the first conduit (17), and the first conduit (17) penetrates into the inside of the first cavity (3).

4. The MTO grade methanol production plant of claim 1, wherein: The lower end right side of the two baffles (18) is provided with a second temperature sensor (19), and the lower end left side of the two baffles (18) is provided with a heating assembly (20), the heating assembly (20) includes a fixed frame (201), the upper end of the fixed frame (201) is fixedly connected with the lower end of the baffle (18), the inside of the fixed frame (201) is fixedly installed with a heater (202), and the lower end of the fixed frame (201) is fixedly connected with a heat conduction plate (203).

5. The MTO grade methanol production plant of claim 1, wherein: The lower side of the partition plate (18) is internally fixedly installed with a second conduit (21), the upper and lower ends of the second conduit (21) are respectively communicated with the interiors of the first cavity (3) and the second cavity (5), and the outer surface of the second conduit (21) is fixedly installed with a second electromagnetic valve (22) at the lower end of the lower side partition plate (18).

6. The MTO grade methanol production plant of claim 2, wherein: The left end of the water tank (6) is fixedly communicated with a water outlet pipe (10), the water outlet pipe (10) penetrates to the outside of the shell (2), the outer surface of the water outlet pipe (10) is fixedly installed with a first electromagnetic valve (11), the upper end of the right side of the water tank (6) is fixedly communicated with a water inlet pipe (12), and the upper end of the water inlet pipe (12) penetrates to the upper side of the shell (2) and is threadedly connected with a sealing cover (13).

7. The MTO grade methanol production plant of claim 1, wherein: The left end of the shell (2) is internally fixedly installed with a first exhaust pipe (23) below the water outlet pipe (10), the right end of the first exhaust pipe (23) is communicated with the interior of the first cavity (3), and the outer surface of the first exhaust pipe (23) is fixedly installed with a third electromagnetic valve (24).

8. The MTO grade methanol production plant of claim 1, wherein: The left end of the shell (2) is internally fixedly installed with a third conduit (25) below the first exhaust pipe (23), the right end of the third conduit (25) is communicated with the interior of the second cavity (5), and the outer surface of the third conduit (25) is fixedly installed with a fourth electromagnetic valve (26).

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