阅读说明：本技术 煤焦油精制工业萘的方法 (Method for refining industrial naphthalene from coal tar ) 是由 高学频 徐孝廉 付进 孙宝平 张小宝 于 2021-07-14 设计创作，主要内容包括：本发明涉及检测仪技术领域,且公开了煤焦油精制工业萘的方法,包括底座,所述底座的上表面固定设有L型支撑板,所述L型支撑板的顶部固定设有气缸,所述气缸的活塞杆末端固定设有固定杆,所述固定杆的下端固定设有检测探头,所述固定杆的杆壁设有滑动设有两个L型连接杆,两个所述L型连接杆的下端固定设有盖板,所述盖板的上表面开设有用于所述检测探头穿过的插孔,所述底座的上表面且位于检测探头的下方固定设有样品罐,所述样品罐的内部设有搅拌机构。该煤焦油精制工业萘的方法,能够自动配制煤焦油溶液,且煤焦油溶液均匀度高,提高了检测精准度,同时能够避免煤焦油溶液飞溅的现象。(The invention relates to the technical field of detectors and discloses a method for refining industrial naphthalene from coal tar, which comprises a base, wherein an L-shaped supporting plate is fixedly arranged on the upper surface of the base, an air cylinder is fixedly arranged at the top of the L-shaped supporting plate, a fixed rod is fixedly arranged at the tail end of a piston rod of the air cylinder, a detection probe is fixedly arranged at the lower end of the fixed rod, two L-shaped connecting rods are slidably arranged on the rod wall of the fixed rod, a cover plate is fixedly arranged at the lower ends of the two L-shaped connecting rods, an insertion hole for the detection probe to penetrate through is formed in the upper surface of the cover plate, a sample tank is fixedly arranged on the upper surface of the base and below the detection probe, and a stirring mechanism is arranged inside the sample tank. The method for refining industrial naphthalene from coal tar can automatically prepare the coal tar solution, the coal tar solution is high in uniformity, the detection precision is improved, and meanwhile the phenomenon that the coal tar solution splashes can be avoided.)

1. The method for refining the industrial naphthalene from the coal tar is characterized by comprising the following steps: comprises an on-line detection device, the on-line detection device comprises a base (1), an L-shaped supporting plate (2) is fixedly arranged on the upper surface of the base (1), the top of the L-shaped supporting plate (2) is fixedly provided with an air cylinder (3), the tail end of a piston rod of the air cylinder (3) is fixedly provided with a fixed rod (4), the lower end of the fixed rod (4) is fixedly provided with a detection probe (5), the rod wall of the fixed rod (4) is provided with two L-shaped connecting rods (6) in a sliding manner, the lower ends of the two L-shaped connecting rods (6) are fixedly provided with a cover plate (7), the upper surface of the cover plate (7) is provided with a jack for the detection probe (5) to pass through, a sample tank (8) is fixedly arranged on the upper surface of the base (1) and below the detection probe (5), and a stirring mechanism is arranged in the sample tank (8);

the fixing rod (4) is of a hollow structure, a sliding block (9) is arranged inside the fixing rod (4) in a sliding mode, the upper side of the sliding block (9) is fixedly connected with the inside of the fixing rod (4) through a first spring (10), strip-shaped openings are formed in the left side and the right side of the fixing rod (4), and end portions of the two L-shaped connecting rods (6) respectively extend into the fixing rod (4) and are fixedly connected with the left side and the right side of the sliding block (9);

the steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material solution a, putting the raw material a into a sample tank (8) as it is, adding a reagent into the sample tank (8), and fully and uniformly stirring the raw material a and the reagent in the sample tank (8) by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder (3) is opened to work, the cylinder (3) stretches out to drive the detection probe (5) on the fixing rod (4) to move downwards and stretch into the sample tank (8), meanwhile, the cover plate (7) can also be in contact with the opening of the sample tank (8) and seal the opening of the sample tank (8), the detection probe (5) can continuously move downwards and stretch into the sample tank (8) to detect the content of naphthalene, then, external detection equipment records the content of the naphthalene, in the moving process, the sliding block (9) in the fixing rod (4) can extrude the first spring (10), so that the cover plate (7) can be in contact with the opening of the sample tank (8) all the time and seal the opening of the sample tank (8), and the phenomenon that a solution of raw materials splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

2. The method for refining industrial naphthalene from coal tar according to claim 1, characterized in that: first motor (11), first (mixing) shaft (12) and first stirring leaf (20) that rabbling mechanism includes, first motor (11) fixed set up in the inside of base (1), the output shaft end of first motor (11) extends to the inside of sample jar (8), the slot has been seted up to the output shaft end of first motor (11), the fixed inserted block (13) that is equipped with of lower extreme of first (mixing) shaft (12), inserted block (13) and slot cooperate, be equipped with the disassembly body between the output shaft of first motor (11) and first (mixing) shaft (12), first stirring leaf (20) are fixed to be set up on the axle wall of first (mixing) shaft (12).

3. The method for refining industrial naphthalene from coal tar according to claim 2, characterized in that: the disassembly mechanism comprises a connecting block (14), a second spring (15), a pressing rod (16) and an L-shaped clamping rod (17), a cavity is formed in the tail end of an output shaft of the first motor (11), the connecting block (14) is located in the cavity in a bilateral symmetry mode, the two connecting blocks (14) are fixedly connected through the second spring (15), the pressing rod (16) is fixedly arranged on one side, away from the second spring (15), of the connecting block (14), the other end of the pressing rod (16) penetrates through the outer portion of the output shaft of the first motor (11), the L-shaped clamping rod (17) is fixedly arranged on the upper side of the connecting block (14), and a clamping groove matched with the L-shaped clamping rod (17) is formed in the lower side of the inserting block (13).

4. The method for refining industrial naphthalene from coal tar according to claim 2, characterized in that: the disassembling mechanism comprises a bolt (18) and a spiral ring (19), a mounting hole is formed between an output shaft of the first motor (11) and the inserting block (13), and the bolt (18) penetrates through the mounting hole and is fixedly connected with the spiral ring (19).

5. The method for refining industrial naphthalene from coal tar according to claim 4, characterized in that: the spiral ring (19) is arranged in a T-shaped structure.

6. The method for refining industrial naphthalene from coal tar according to claim 2, wherein: the disassembly mechanism comprises an external thread arranged on the side wall of the insertion block (13), an internal thread is arranged on the inner side wall of the insertion groove, and the insertion block (13) is fixedly connected with the insertion groove through the matching of the external thread and the internal thread.

7. The method for refining industrial naphthalene from coal tar according to claim 1, characterized in that: the stirring mechanism comprises a second motor (21), a second stirring shaft (22) and a second stirring blade (23), the second motor (21) is fixedly arranged on the left side of the upper surface of the cover plate (7), the second stirring shaft (22) is fixedly arranged at the output end of the second motor (21), and the second stirring blade (23) is fixedly arranged on the shaft wall of the second stirring shaft (22).

8. The method for refining industrial naphthalene from coal tar according to claim 1, characterized in that: rabbling mechanism still includes third motor (24), third (mixing) shaft (25) and third stirring leaf (26), third motor (24) are fixed to be set up in the upper surface left side of apron (7), third (mixing) shaft (25) are bilateral symmetry and rotate and set up in the lower surface of apron (7), third stirring leaf (26) fixed mounting is in the lower extreme of third (mixing) shaft (25), two the axle wall of third (mixing) shaft (25) all fixes being equipped with belt pulley (27), two connect through belt (28) transmission between belt pulley (27).

9. The method for refining industrial naphthalene from coal tar according to claim 1, characterized in that: the detection probe (5) is electrically connected with external detection equipment.

Technical Field

The invention relates to the technical field of industrial naphthalene preparation, in particular to a method for refining industrial naphthalene from coal tar.

Background

Coal tar contains tens of thousands of organic compounds, and only over 500 species can be identified at present. The coal tar obtained by coking generally contains 6 to 20 percent of naphthalene, and is a good source of naphthalene industrial raw materials. As the coal tar is rich in polycyclic aromatic hydrocarbons such as naphthalene, naphthalene is one of important products in coal tar processing.

At present, the on-line detection of the industrial naphthalene refined from the coal tar needs to manually prepare a solution of a raw material a (the raw material a is obtained by performing flash evaporation on the coal tar raw material through a tar distillation tower and then performing dehydration and dephenolization treatment), and after the preparation, a detection probe on an on-line detection device is inserted into the solution of the raw material a for detection, so that the detection efficiency is low, and the phenomenon that the solution of the raw material a splashes easily occurs in the detection process. The invention provides a method for refining industrial naphthalene from coal tar, which is improved aiming at an online detection process.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a method for refining industrial naphthalene by coal tar, which can automatically prepare a raw material solution a, has high uniformity and high detection accuracy, can avoid the phenomenon of splashing in the process of re-detection of the raw material solution a, and solves the problems that the raw material solution a needs to be prepared in advance manually, and after the raw material solution a is prepared, a detection probe on an online detector is inserted into the raw material solution a for detection, so that the detection efficiency is low, and the phenomenon of splashing of the raw material solution a is easy to occur in the detection process in the existing online detection of the industrial naphthalene refined by coal tar.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the method for refining the industrial naphthalene from the coal tar is characterized by comprising the following steps: the device comprises online detection equipment, wherein the online detection equipment comprises a base, an L-shaped supporting plate is fixedly arranged on the upper surface of the base, an air cylinder is fixedly arranged at the top of the L-shaped supporting plate, a fixed rod is fixedly arranged at the tail end of a piston rod of the air cylinder, a detection probe is fixedly arranged at the lower end of the fixed rod, two L-shaped connecting rods are slidably arranged on the rod wall of the fixed rod, a cover plate is fixedly arranged at the lower ends of the two L-shaped connecting rods, a jack for the detection probe to penetrate through is formed in the upper surface of the cover plate, a sample tank is fixedly arranged on the upper surface of the base and below the detection probe, and a stirring mechanism is arranged inside the sample tank;

the fixing rod is of a hollow structure, a sliding block is arranged inside the fixing rod in a sliding mode, the upper side of the sliding block is fixedly connected with the inside of the fixing rod through a first spring, strip-shaped openings are formed in the left side and the right side of the fixing rod, and the end portions of the two L-shaped connecting rods respectively extend into the fixing rod and are fixedly connected with the left side and the right side of the sliding block;

the steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material solution a, putting the raw material a into a sample tank, adding a reagent into the sample tank, and fully and uniformly stirring the raw material a and the reagent in the sample tank by a stirring mechanism;

b2: the detection process comprises the steps that a cylinder is opened to work, the cylinder stretches out to drive a detection probe on a fixing rod to move downwards and stretch into a sample tank, meanwhile, a cover plate can be in contact with an opening of the sample tank and plug the opening, the detection probe can continuously move downwards and stretch into the sample tank to detect the content of naphthalene, then external detection equipment records the content of the naphthalene, in the moving process, a sliding block inside the fixing rod can extrude a first spring, so that the cover plate can be in contact with the opening of the sample tank all the time and plug the opening, and the phenomenon that a solution of a raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

Preferably, first motor, (mixing) shaft and first stirring leaf that rabbling mechanism includes, first motor is fixed to be set up in the inside of base, the output shaft end of first motor extends to the inside of sample jar, the slot has been seted up to the output shaft end of first motor, the fixed inserted block that is equipped with of lower extreme of first (mixing) shaft, the inserted block cooperatees with the slot, be equipped with the disassembly body between the output shaft of first motor and the first (mixing) shaft, first stirring leaf is fixed to be set up on the axle wall of first (mixing) shaft.

Preferably, the disassembly mechanism includes connecting block, second spring, presses depression bar and L type kelly, the output shaft end of first motor is equipped with the cavity, the connecting block is bilateral symmetry and lies in the inside of cavity, two pass through second spring fixed connection between the connecting block, press the fixed one side of keeping away from the second spring that sets up in the connecting block of depression bar, and the other end of pressing the depression bar runs through to the output shaft of first motor outside, L type kelly is fixed to be set up in the upside of connecting block, the draw-in groove with L type kelly matched with has been seted up to the downside of inserted block.

Preferably, the dismounting mechanism comprises a bolt and a spiral ring, a mounting hole is formed between the output shaft of the first motor and the insert block, and the bolt penetrates through the mounting hole and is fixedly connected with the spiral ring.

Preferably, the spiro ring is arranged in a T-shaped structure.

Preferably, the disassembly mechanism comprises an external thread arranged on the side wall of the insertion block, an internal thread is arranged on the inner side wall of the insertion groove, and the insertion block is fixedly connected with the insertion groove through the matching of the external thread and the internal thread.

Preferably, the stirring mechanism comprises a second motor, a second stirring shaft and a second stirring blade, the second motor is fixedly installed on the left side of the upper surface of the cover plate, the second stirring shaft is fixedly arranged at the output end of the second motor, and the second stirring blade is fixedly installed on the shaft wall of the second stirring shaft.

Preferably, the stirring mechanism further comprises a third motor, a third stirring shaft and a third stirring blade, the third motor is fixedly arranged on the left side of the upper surface of the cover plate, the third stirring shaft is bilaterally symmetrical and is rotatably arranged on the lower surface of the cover plate, the third stirring blade is fixedly arranged at the lower end of the third stirring shaft, and a belt pulley is fixedly arranged on the shaft wall of the third stirring shaft and is connected with the third stirring shaft through a belt transmission.

Preferably, the detection probe is electrically connected with an external detection device.

(III) advantageous effects

Compared with the prior art, the invention provides an on-line detector and a detection method for industrial naphthalene refined from coal tar, which have the following beneficial effects:

1. this on-line measuring equipment of refined industry naphthalene of coal tar through first motor, first (mixing) shaft and the first stirring leaf that is equipped with, can prepare the coal tar solution in the inside automation of sample tank, through inserted block, connecting block, second spring, the pressure lever and the L type kelly of being equipped with, the staff of being convenient for dismantles first (mixing) shaft from the output shaft of first motor and gets off the washing.

2. This on-line measuring equipment of coal tar refining industry naphthalene through the bolt and the spiro that are equipped with, is convenient for the staff and dismantles first (mixing) shaft from the output shaft of first motor and gets off the washing.

3. This on-line measuring equipment of coal tar refining industry naphthalene through setting up the external screw thread on the inserted block and setting up the internal thread in the inside slot, is convenient for the staff and dismantles first (mixing) shaft from the output shaft of first motor and gets off the washing.

4. This on-line measuring equipment of coal tar refining industry naphthalene through second motor, second (mixing) shaft and the second stirring leaf that is equipped with, can set up second (mixing) shaft and second stirring leaf on the apron, is convenient for lift second (mixing) shaft and second stirring leaf and wash.

5. This on-line measuring equipment of refined industry naphthalene of coal tar through third motor, third (mixing) shaft, third stirring leaf, belt pulley and the belt that is equipped with, has not only improved the mixed degree of consistency to the coal tar solution, and is convenient for lift up third (mixing) shaft and third stirring leaf and wash.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is an enlarged view of a portion B of FIG. 1;

FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 6 is an enlarged view of a portion C of FIG. 5;

FIG. 7 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a fifth embodiment of the present invention.

In the figure: the device comprises a base 1, a 2L-shaped supporting plate, a 3 air cylinder, a 4 fixing rod, a 5 detection probe, a 6L-shaped connecting rod, a 7 cover plate, an 8 sample tank, a 9 sliding block, a 10 first spring, a 11 first motor, a 12 first stirring shaft, a 13 inserting block, a 14 connecting block, a 15 second spring, a 16 pressing rod, a 17L-shaped clamping rod, an 18 bolt, a 19 spiral ring, a 20 first stirring blade, a 21 second motor, a 22 second stirring shaft, a 23 second stirring blade, a 24 third motor, a 25 third stirring shaft, a 26 third stirring blade, a 27 belt pulley and a 28 belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 protection scope of the present invention.

Example 1

Referring to fig. 1-2, the method for refining industrial naphthalene from coal tar comprises an online detection device, wherein the online detection device comprises a base 1, an L-shaped support plate 2 is fixedly arranged on the upper surface of the base 1, an air cylinder 3 is fixedly arranged at the top of the L-shaped support plate 2, a fixed rod 4 is fixedly arranged at the tail end of a piston rod of the air cylinder 3, a detection probe 5 is fixedly arranged at the lower end of the fixed rod 4, two L-shaped connecting rods 6 are slidably arranged on the rod wall of the fixed rod 4, a cover plate 7 is fixedly arranged at the lower ends of the two L-shaped connecting rods 6, an insertion hole for the detection probe 5 to penetrate through is formed in the upper surface of the cover plate 7, a sample tank 8 is fixedly arranged on the upper surface of the base 1 and below the detection probe 5, and a stirring mechanism is arranged inside the sample tank 8;

the fixing rod 4 is of a hollow structure, a sliding block 9 is arranged inside the fixing rod 4 in a sliding mode, the upper side of the sliding block 9 is fixedly connected with the inside of the fixing rod 4 through a first spring 10, strip-shaped openings are formed in the left side and the right side of the fixing rod 4, and the end portions of the two L-shaped connecting rods 6 respectively extend to the inside of the fixing rod 4 and are fixedly connected with the left side and the right side of the sliding block 9.

The steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material a solution, putting the raw material a into the sample tank 8, adding a reagent into the sample tank 8, and stirring the raw material a and the reagent in the sample tank 8 by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder 3 is opened to work, the cylinder 3 extends out to drive the detection probe 5 on the fixing rod 4 to move downwards and extend into the sample tank 8, meanwhile, the cover plate 7 can also be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8, the detection probe 5 can continuously move downwards and extend into the sample tank 8 to detect the naphthalene content at the moment, then, external detection equipment records the naphthalene content, in the moving process, the sliding block 9 in the fixing rod 4 can extrude the first spring 10, so that the cover plate 7 can be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8 all the time, and the phenomenon that a solution of the raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

First motor 11 that rabbling mechanism includes, first (mixing) shaft 12 and first stirring leaf 20, first motor 11 is fixed to be set up in the inside of base 1, the output shaft end of first motor 11 extends to the inside of sample tank 8, the slot has been seted up to the output shaft end of first motor 11, the fixed inserted block 13 that is equipped with of lower extreme of first (mixing) shaft 12, inserted block 13 cooperatees with the slot, be equipped with detaching mechanism between the output shaft of first motor 11 and first (mixing) shaft 12, first stirring leaf 20 is fixed to be set up on the axle wall of first (mixing) shaft 12.

The disassembling mechanism comprises connecting blocks 14, a second spring 15, a pressing rod 16 and an L-shaped clamping rod 17, a cavity is arranged at the tail end of an output shaft of the first motor 11, the connecting blocks 14 are bilaterally symmetrically positioned in the cavity, the two connecting blocks 14 are fixedly connected through the second spring 15, the pressing rod 16 is fixedly arranged on one side of the connecting block 14 far away from the second spring 15, the other end of the pressing rod 16 penetrates the outer part of the output shaft of the first motor 11, the L-shaped clamping rod 17 is fixedly arranged at the upper side of the connecting block 14, the lower side of the inserting block 13 is provided with a clamping groove matched with the L-shaped clamping rod 17, the two pressing rods 16 are pushed by the hand of a person, so that the two connecting blocks 14 move relatively and press the second spring 15, at the moment, the two L-shaped clamping rods 17 are moved out of the clamping grooves on the inserting blocks 13, thereby facilitating the worker to detach and clean the first stirring shaft 12 from the output shaft of the first motor 11.

The detection probe 5 is electrically connected with external detection equipment.

Example 2

Referring to fig. 3-4, the method for refining industrial naphthalene from coal tar includes an on-line detection device, the on-line detection device includes a base 1, an L-shaped support plate 2 is fixedly disposed on an upper surface of the base 1, an air cylinder 3 is fixedly disposed at a top of the L-shaped support plate 2, a fixing rod 4 is fixedly disposed at a tail end of a piston rod of the air cylinder 3, a detection probe 5 is fixedly disposed at a lower end of the fixing rod 4, two L-shaped connecting rods 6 are slidably disposed on a rod wall of the fixing rod 4, a cover plate 7 is fixedly disposed at lower ends of the two L-shaped connecting rods 6, an insertion hole for the detection probe 5 to pass through is formed in an upper surface of the cover plate 7, a sample tank 8 is fixedly disposed on an upper surface of the base 1 and below the detection probe 5, and a stirring mechanism is disposed inside the sample tank 8;

the fixing rod 4 is of a hollow structure, a sliding block 9 is arranged inside the fixing rod 4 in a sliding mode, the upper side of the sliding block 9 is fixedly connected with the inside of the fixing rod 4 through a first spring 10, strip-shaped openings are formed in the left side and the right side of the fixing rod 4, and the end portions of the two L-shaped connecting rods 6 respectively extend to the inside of the fixing rod 4 and are fixedly connected with the left side and the right side of the sliding block 9.

The steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material a solution, putting the raw material a into the sample tank 8, adding a reagent into the sample tank 8, and stirring the raw material a and the reagent in the sample tank 8 by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder 3 is opened to work, the cylinder 3 extends out to drive the detection probe 5 on the fixing rod 4 to move downwards and extend into the sample tank 8, meanwhile, the cover plate 7 can also be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8, the detection probe 5 can continuously move downwards and extend into the sample tank 8 to detect the naphthalene content at the moment, then, external detection equipment records the naphthalene content, in the moving process, the sliding block 9 in the fixing rod 4 can extrude the first spring 10, so that the cover plate 7 can be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8 all the time, and the phenomenon that a solution of the raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

First motor 11 that rabbling mechanism includes, first (mixing) shaft 12 and first stirring leaf 20, first motor 11 is fixed to be set up in the inside of base 1, the output shaft end of first motor 11 extends to the inside of sample tank 8, the slot has been seted up to the output shaft end of first motor 11, the fixed inserted block 13 that is equipped with of lower extreme of first (mixing) shaft 12, inserted block 13 cooperatees with the slot, be equipped with detaching mechanism between the output shaft of first motor 11 and first (mixing) shaft 12, first stirring leaf 20 is fixed to be set up on the axle wall of first (mixing) shaft 12.

The dismounting mechanism comprises a bolt 18 and a spiral ring 19, a mounting hole is formed between the output shaft of the first motor 11 and the insert block 13, the bolt 18 penetrates through the mounting hole and is fixedly connected with the spiral ring 19, and the spiral ring 19 is arranged in a T-shaped structure, so that a worker can conveniently dismount and clean the first stirring shaft 12 from the output shaft of the first motor 11.

The detection probe 5 is electrically connected with external detection equipment.

Example 3

Referring to fig. 5-6, the method for refining industrial naphthalene from coal tar comprises an online detection device, wherein the online detection device comprises a base 1, an L-shaped support plate 2 is fixedly arranged on the upper surface of the base 1, an air cylinder 3 is fixedly arranged at the top of the L-shaped support plate 2, a fixed rod 4 is fixedly arranged at the tail end of a piston rod of the air cylinder 3, a detection probe 5 is fixedly arranged at the lower end of the fixed rod 4, two L-shaped connecting rods 6 are slidably arranged on the rod wall of the fixed rod 4, a cover plate 7 is fixedly arranged at the lower ends of the two L-shaped connecting rods 6, an insertion hole for the detection probe 5 to pass through is formed in the upper surface of the cover plate 7, a sample tank 8 is fixedly arranged on the upper surface of the base 1 and below the detection probe 5, and a stirring mechanism is arranged inside the sample tank 8;

the fixing rod 4 is of a hollow structure, a sliding block 9 is arranged inside the fixing rod 4 in a sliding mode, the upper side of the sliding block 9 is fixedly connected with the inside of the fixing rod 4 through a first spring 10, strip-shaped openings are formed in the left side and the right side of the fixing rod 4, and the end portions of the two L-shaped connecting rods 6 respectively extend to the inside of the fixing rod 4 and are fixedly connected with the left side and the right side of the sliding block 9.

The steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material a solution, putting the raw material a into the sample tank 8, adding a reagent into the sample tank 8, and stirring the raw material a and the reagent in the sample tank 8 by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder 3 is opened to work, the cylinder 3 extends out to drive the detection probe 5 on the fixing rod 4 to move downwards and extend into the sample tank 8, meanwhile, the cover plate 7 can also be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8, the detection probe 5 can continuously move downwards and extend into the sample tank 8 to detect the naphthalene content at the moment, then, external detection equipment records the naphthalene content, in the moving process, the sliding block 9 in the fixing rod 4 can extrude the first spring 10, so that the cover plate 7 can be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8 all the time, and the phenomenon that a solution of the raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

First motor 11 that rabbling mechanism includes, first (mixing) shaft 12 and first stirring leaf 20, first motor 11 is fixed to be set up in the inside of base 1, the output shaft end of first motor 11 extends to the inside of sample tank 8, the slot has been seted up to the output shaft end of first motor 11, the fixed inserted block 13 that is equipped with of lower extreme of first (mixing) shaft 12, inserted block 13 cooperatees with the slot, be equipped with detaching mechanism between the output shaft of first motor 11 and first (mixing) shaft 12, first stirring leaf 20 is fixed to be set up on the axle wall of first (mixing) shaft 12.

The dismounting mechanism comprises an external thread arranged on the side wall of the insertion block 13, an internal thread is arranged on the inner side wall of the insertion groove, the insertion block 13 and the insertion groove are connected in a matched and fastened mode through the external thread and the internal thread, and therefore a worker can conveniently dismount and clean the first stirring shaft 12 from the output shaft of the first motor 11.

The detection probe 5 is electrically connected with external detection equipment.

Example 4

Referring to fig. 7, the method for refining industrial naphthalene from coal tar includes an on-line detection device, the on-line detection device includes a base 1, an L-shaped support plate 2 is fixedly disposed on an upper surface of the base 1, an air cylinder 3 is fixedly disposed at a top of the L-shaped support plate 2, a fixing rod 4 is fixedly disposed at a tail end of a piston rod of the air cylinder 3, a detection probe 5 is fixedly disposed at a lower end of the fixing rod 4, two L-shaped connecting rods 6 are slidably disposed on a rod wall of the fixing rod 4, a cover plate 7 is fixedly disposed at lower ends of the two L-shaped connecting rods 6, an insertion hole for the detection probe 5 to pass through is formed in an upper surface of the cover plate 7, a sample tank 8 is fixedly disposed on an upper surface of the base 1 and below the detection probe 5, and a stirring mechanism is disposed inside the sample tank 8;

the fixing rod 4 is of a hollow structure, a sliding block 9 is arranged inside the fixing rod 4 in a sliding mode, the upper side of the sliding block 9 is fixedly connected with the inside of the fixing rod 4 through a first spring 10, strip-shaped openings are formed in the left side and the right side of the fixing rod 4, and the end portions of the two L-shaped connecting rods 6 respectively extend to the inside of the fixing rod 4 and are fixedly connected with the left side and the right side of the sliding block 9.

The steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material a solution, putting the raw material a into the sample tank 8, adding a reagent into the sample tank 8, and stirring the raw material a and the reagent in the sample tank 8 by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder 3 is opened to work, the cylinder 3 extends out to drive the detection probe 5 on the fixing rod 4 to move downwards and extend into the sample tank 8, meanwhile, the cover plate 7 can also be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8, the detection probe 5 can continuously move downwards and extend into the sample tank 8 to detect the naphthalene content at the moment, then, external detection equipment records the naphthalene content, in the moving process, the sliding block 9 in the fixing rod 4 can extrude the first spring 10, so that the cover plate 7 can be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8 all the time, and the phenomenon that a solution of the raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

The stirring mechanism comprises a second motor 21, a second stirring shaft 22 and a second stirring blade 23, the second motor 21 is fixedly installed on the left side of the upper surface of the cover plate 7, the second stirring shaft 22 is fixedly arranged at the output end of the second motor 21, and the second stirring blade 23 is fixedly installed on the shaft wall of the second stirring shaft 22, so that the second stirring shaft 22 and the second stirring blade 23 can be arranged on the cover plate 7, and the second stirring shaft 22 and the second stirring blade 23 can be lifted and cleaned conveniently.

The detection probe 5 is electrically connected with external detection equipment.

Example 5

Referring to fig. 8, the method for refining industrial naphthalene from coal tar comprises an online detection device, wherein the online detection device comprises a base 1, an L-shaped support plate 2 is fixedly arranged on the upper surface of the base 1, an air cylinder 3 is fixedly arranged at the top of the L-shaped support plate 2, a fixed rod 4 is fixedly arranged at the tail end of a piston rod of the air cylinder 3, a detection probe 5 is fixedly arranged at the lower end of the fixed rod 4, two L-shaped connecting rods 6 are slidably arranged on the rod wall of the fixed rod 4, a cover plate 7 is fixedly arranged at the lower ends of the two L-shaped connecting rods 6, an insertion hole for the detection probe 5 to penetrate through is formed in the upper surface of the cover plate 7, a sample tank 8 is fixedly arranged on the upper surface of the base 1 and below the detection probe 5, and a stirring mechanism is arranged inside the sample tank 8;

the fixing rod 4 is of a hollow structure, a sliding block 9 is arranged inside the fixing rod 4 in a sliding mode, the upper side of the sliding block 9 is fixedly connected with the inside of the fixing rod 4 through a first spring 10, strip-shaped openings are formed in the left side and the right side of the fixing rod 4, and the end portions of the two L-shaped connecting rods 6 respectively extend to the inside of the fixing rod 4 and are fixedly connected with the left side and the right side of the sliding block 9.

The steps for refining the industrial naphthalene are as follows:

a: carrying out flash evaporation on the coal tar raw material through a tar distillation tower, and then carrying out dehydration and dephenolization treatment to obtain a raw material a;

b: carrying out online detection treatment on the raw material a:

b1: preparing a raw material a solution, putting the raw material a into the sample tank 8, adding a reagent into the sample tank 8, and stirring the raw material a and the reagent in the sample tank 8 by a stirring mechanism;

b2: the detection process comprises the steps that the cylinder 3 is opened to work, the cylinder 3 extends out to drive the detection probe 5 on the fixing rod 4 to move downwards and extend into the sample tank 8, meanwhile, the cover plate 7 can also be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8, the detection probe 5 can continuously move downwards and extend into the sample tank 8 to detect the naphthalene content at the moment, then, external detection equipment records the naphthalene content, in the moving process, the sliding block 9 in the fixing rod 4 can extrude the first spring 10, so that the cover plate 7 can be in contact with the opening of the sample tank 8 and seal the opening of the sample tank 8 all the time, and the phenomenon that a solution of the raw material splashes in the detection process is avoided;

c: and finally, carrying out flash evaporation treatment on the raw material a meeting the design requirement through a naphthalene distillation tower.

The stirring mechanism further comprises a third motor 24, a third stirring shaft 25 and a third stirring blade 26, the third motor 24 is fixedly arranged on the left side of the upper surface of the cover plate 7, the third stirring shaft 25 is bilaterally symmetrical and is rotatably arranged on the lower surface of the cover plate 7, the third stirring blade 26 is fixedly arranged at the lower end of the third stirring shaft 25, a belt pulley 27 is fixedly arranged on the shaft wall of each of the two third stirring shafts 25, the two belt pulleys 27 are in transmission connection through a belt 28, the mixing uniformity of the coal tar solution is improved, and the third stirring shaft 25 and the third stirring blade 26 are conveniently lifted and cleaned.

The detection probe 5 is electrically connected with external detection equipment.

It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.