High-efficient formaldehyde oxidation ware
Technical Field
The invention relates to the field of chemical industry, in particular to a high-efficiency formaldehyde oxidizer.
Background
Formaldehyde has wide application, belongs to a popular chemical product with simple production process and sufficient raw material supply, is the main stem of a downstream product tree of methanol, about 30 percent of methanol in the world is used for producing formaldehyde, the annual output is about 2500 million tons, a formaldehyde solution is a water solution with lower concentration, and is inconvenient for long-distance transportation from the economic point of view, so a factory is generally arranged near a main consumer market for production, the methanol oxidation method and a natural gas direct oxidation method are mainly adopted for production in the industry, the oxidation temperature of an oxidizer is difficult to quickly rise in the oxidation process when the methanol oxidation method and the natural gas oxidation method are used for oxidation reaction in the oxidizer in the prior art, the substance reaction speed is too slow, the temperature in the oxidizer is difficult to keep a constant value when substances enter the reaction temperature, side reactions are increased, energy consumption is accelerated, and therefore, a high-efficiency formaldehyde oxidizer needs to be developed, therefore, the problems that the oxidation temperature of the oxidizer is difficult to quickly rise in the oxidation process, the substance reaction speed is too slow, and the temperature in the oxidizer is difficult to keep a constant value when the substance enters the reaction temperature, so that the side reactions are increased and the energy consumption is accelerated in the oxidation reaction of the existing methanol oxidation method and natural gas oxidation method in the oxidizer are solved.
Summary of the invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a high-efficiency formaldehyde oxidizer structurally comprises a feeding ring cylinder, a motor, a formaldehyde oxidation reaction tank, a bracket, a controller, a discharge valve, a base and a formaldehyde solution collecting box, the top of the formaldehyde oxidation reaction tank is provided with a feeding ring cylinder which is connected with the formaldehyde oxidation reaction tank, a motor is arranged under the feeding ring cylinder, the motor is matched with the feeding ring cylinder, a formaldehyde solution collecting box is arranged at the bottom of the formaldehyde oxidation reaction tank, the formaldehyde solution collecting box is matched with the formaldehyde oxidation reaction tank, a controller is arranged at the center of the front end of the formaldehyde solution collecting box, a discharge valve is arranged at the central position of the bottom of the formaldehyde solution collecting box and is connected with the formaldehyde solution collecting box, the formaldehyde solution collection box is provided with a base below, the top of the base is provided with a support, and the base is connected with the formaldehyde solution collection box through the support.
As the further optimization of this technical scheme, formaldehyde oxidation retort constitute by rabbling mechanism, blast gate, reaction mechanism, heating constant temperature mechanism, reaction mechanism top central point put and be equipped with rabbling mechanism, rabbling mechanism and reaction mechanism cooperate, rabbling mechanism around both ends be equipped with the blast gate, the reaction mechanism outer lane on be equipped with heating constant temperature mechanism, rabbling mechanism pass through the blast gate and heat constant temperature mechanism and cooperate.
As a further optimization of the technical scheme, the stirring mechanism comprises a fan housing, an impeller, a shaft rod, a stirring round rod and a heat exchange turntable, wherein the impeller is arranged inside the fan housing, an air inlet formed in the bottom of the fan housing is connected with an air valve, the shaft rod is arranged below the fan housing, the top end of the shaft rod is connected with the impeller, the heat exchange turntable is arranged at the bottom end of the shaft rod, the heat exchange turntable is connected with the shaft rod, the stirring round rod is arranged in the middle section of the shaft rod, and the stirring round rod is connected with the shaft rod.
As a further optimization of the technical scheme, the heat exchange turntable comprises a heat transfer jacket, a heat transfer ring, a heat transfer inner ring, a heat transfer rod and a stirring straight rod, wherein the heat transfer jacket is arranged on the outer ring of the heat transfer ring, the heat transfer jacket and the heat transfer ring are in sliding fit, the heat transfer rod is arranged on the inner ring of the heat transfer ring, the heat transfer rod and the heat transfer ring are welded, the heat transfer inner ring is arranged below the heat transfer ring, the heat transfer inner ring is connected with the heat transfer ring through the heat transfer rod, the stirring straight rod is arranged at the bottom of the heat transfer inner ring, and the stirring straight rod is vertically fixed at the bottom of the heat transfer inner ring.
As a further optimization of the technical scheme, the reaction mechanism comprises a ceramic inner container, a heat insulation tank, a filtrate cover and a bottom ring, the ceramic inner container is arranged in the heat insulation tank, the ceramic inner container and the heat insulation tank are in sliding fit, the bottom ring is arranged at the bottom of the heat insulation tank, the bottom ring is buckled with the heat insulation tank, the filtrate cover is arranged at the center of the bottom ring, and the filtrate cover is buckled with the bottom ring.
As a further optimization of the technical scheme, the heating constant temperature mechanism consists of a heating rod, an air pipe, air inlet fins and a connecting pipe, the heating rod is arranged on the inner wall of the air pipe, the air pipe is connected with the outer ring of the ceramic inner container through the heating rod, the connecting pipe is arranged on the air pipe, the air inlet fins are distributed at the front end of the connecting pipe, and the air inlet fins are connected with the connecting pipe.
As a further optimization of the technical scheme, the air pipes are of a circular ring structure and are arranged on the outer ring of the heat insulation tank in parallel one by one.
As a further optimization of the technical scheme, the air inlet fins are obliquely arranged on the air inlet at the front end of the connecting pipe from top to bottom.
Advantageous effects
The efficient formaldehyde oxidizer disclosed by the invention is reasonable in design and strong in functionality, and has the following beneficial effects:
the formaldehyde oxidation reaction tank mainly comprises a stirring mechanism, a reaction mechanism and a heating constant temperature mechanism, the temperature in the tank can be quickly raised to 600-;
the heat transfer ring is connected with the shaft rod through a central clamping point surrounded by the four heat transfer rods, and the heat transfer ring is in sliding fit with the heat transfer clamping sleeve fixed on the inner wall of the ceramic liner, so that heat generated by the ceramic liner through the heating rods can be quickly transferred to the shaft rod, the stirring round rod and the stirring straight rod have higher heat in the stirring process, the generated heat can be timely transferred to substances and oxides required for preparing formaldehyde, the heating degree and the reaction speed of materials are improved, and the materials are prevented from being bonded on the surface of a stirring part;
the air pipes are of a circular structure and are arranged on the outer ring of the heat insulation tank in parallel one by one, the ceramic inner container is directly heated through the built-in heating rod, the temperature in the tank is quickly raised, heat is uniformly distributed at each position in the tank through the formed stirring structure, the temperature difference dead angle is reduced, the generation of side reactants is reduced, when the temperature in the tank is stabilized at a reaction temperature value, the air valve is automatically opened, the impeller rotates along with the shaft rod to generate air negative pressure in the fan cover, air is fed through the air inlet fins arranged on the connecting pipe, air is discharged through the air outlet arranged at the top of the fan cover, flowing air is quickly subjected to heat exchange through the air pipes and the connecting pipe under a heat transfer structure formed by the air pipes, the air inlet fins and the connecting pipe, and redundant waste heat generated by the heating rod is discharged along with the air, so that the temperature in the tank is ensured to be stabilized at the reaction, providing part of the energy consumption for the heating rod.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of a front view of a high efficiency formaldehyde oxidizer of the present invention;
FIG. 2 is a schematic diagram showing the front view of the formaldehyde oxidation reaction tank according to the present invention;
FIG. 3 is a schematic side sectional view of the stirring mechanism of the present invention;
FIG. 4 is a schematic bottom plan view of the heat exchange rotary disk of the present invention;
FIG. 5 is a schematic side sectional view of a reaction mechanism according to the present invention;
FIG. 6 is a schematic side sectional view of the heating thermostat of the present invention.
In the figure: a feeding ring cylinder-1, a motor-2, a formaldehyde oxidation reaction tank-3, a stirring mechanism-31, a fan cover-31 a, an impeller-31 b, a shaft rod-31 c, a stirring round rod-31 d, a heat exchange turntable-31 e, a heat transfer jacket-31 e1, a heat transfer ring-31 e2, a heat transfer inner ring-31 e3, a heat transfer rod-31 e4, a stirring straight rod-31 e5, an air valve-32, a reaction mechanism-33, a ceramic liner-33 a, a heat insulation tank-33 b, a filtrate cover-33 c, a bottom ring-33 d, a heating constant temperature mechanism-34, a heating rod-34 a, an air pipe-34 b, an air inlet fin-34 c, a connecting pipe-34 d, a support-4, a controller-5, a discharge valve-6, a base-7, a vacuum pump and a vacuum pump, A formaldehyde solution collection box-8.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Example 1
Referring to fig. 1-4, the present invention provides an embodiment of a high efficiency formaldehyde oxidizer:
referring to fig. 1, a high-efficiency formaldehyde oxidizer structurally comprises a feeding ring cylinder 1, a motor 2, a formaldehyde oxidation reaction tank 3, a support 4, a controller 5, a discharge valve 6, a base 7 and a formaldehyde solution collecting box 8, wherein the feeding ring cylinder 1 is arranged at the top of the formaldehyde oxidation reaction tank 3, the feeding ring cylinder 1 is connected with the formaldehyde oxidation reaction tank 3, the motor 2 is arranged under the feeding ring cylinder 1, the motor 2 is matched with the feeding ring cylinder 1, the formaldehyde solution collecting box 8 is arranged at the bottom of the formaldehyde oxidation reaction tank 3, the formaldehyde solution collecting box 8 is matched with the formaldehyde oxidation reaction tank 3, the controller 5 is arranged at the center of the front end of the formaldehyde solution collecting box 8, the discharge valve 6 is arranged at the center of the bottom of the formaldehyde solution collecting box 8, the discharge valve 6 is connected with the formaldehyde solution collecting box 8, the base 7 is arranged below the formaldehyde solution collecting box 8, the top of the base 7 is provided with a support 4, and the base 7 is connected with a formaldehyde solution collection box 8 through the support 4.
Referring to fig. 2, the formaldehyde oxidation reaction tank 3 is composed of a stirring mechanism 31, an air valve 32, a reaction mechanism 33, and a heating constant temperature mechanism 34, the stirring mechanism 31 is disposed at the center of the top of the reaction mechanism 33, the stirring mechanism 31 is matched with the reaction mechanism 33, two air valves 32 are disposed at the front and rear ends of the stirring mechanism 31 in an axisymmetric structure, the heating constant temperature mechanism 34 is disposed on the outer ring of the reaction mechanism 33, and the stirring mechanism 31 is matched with the heating constant temperature mechanism 34 through the air valve 32.
Referring to fig. 3, the stirring mechanism 31 is composed of a fan housing 31a, an impeller 31b, a shaft rod 31c, stirring round rods 31d and a heat exchange turntable 31e, the impeller 31b is arranged inside the fan housing 31a, an air inlet formed in the bottom of the fan housing 31a is connected with an air valve 32, the shaft rod 31c is arranged below the fan housing 31a, the top end of the shaft rod 31c is connected with the impeller 31b, the shaft rod 31c rotates through a driving torque generated by the motor 2, the heat exchange turntable 31e is arranged at the bottom end of the shaft rod 31c, the heat exchange turntable 31e is connected with the shaft rod 31c, the three stirring round rods 31d are arranged in the middle position of the shaft rod 31c in parallel at equal intervals, and the stirring round rods 31d are connected with the shaft rod 31 c.
Referring to fig. 4, the heat exchange turntable 31e is composed of a heat transfer jacket 31e1, heat transfer rings 31e2, heat transfer inner rings 31e3, heat transfer rods 31e4 and stirring straight rods 31e5, eight heat transfer jackets 31e1 are uniformly and equidistantly arranged on the outer ring of the heat transfer ring 31e2, the heat transfer jacket 31e1 and the heat transfer rings 31e2 are in sliding fit, four heat transfer rods 31e4 are uniformly and equidistantly arranged on the inner ring of the heat transfer rings 31e2, the heat transfer rods 31e4 and the heat transfer rings 31e2 are welded, heat transfer inner rings 31e3 are arranged below the heat transfer rings 31e2, the heat transfer inner rings 31e3 are connected with the heat transfer rings 31e2 through heat transfer rods 31e4, eight stirring straight rods 31e5 are uniformly and equidistantly arranged at the bottom of the heat transfer inner rings 31e3, and the stirring straight rods 31e5 are vertically fixed on the bottom of the heat transfer inner rings 31e 3.
The heat transfer jackets 31e1 are enclosed into a ring wall structure along the heat transfer rings 31e2, and the heat transfer jackets 31e1 are fixed on the inner wall of the ceramic inner container 33 a.
The heat transfer ring 31e2 is connected with the shaft rod 31c through a central clamping point surrounded by four heat transfer rods 31e 4.
During the use, because heat transfer ring 31e2 and the heat transfer jacket 31e1 sliding fit who fixes on ceramic inner bag 33a inner wall, make ceramic inner bag 33a pass through the heat that heating rod 34a produced, can transmit to axostylus axostyle 31c fast, let stirring round bar 31d and stirring straight-bar 31e5 possess higher heat at the stirring in-process, make the heat of production can in time transmit to on preparing required material of formaldehyde and the oxide, improve the heated degree and the reaction rate of material, prevent that the material from bonding on the stirring part surface.
Example 2
Referring to fig. 1-6, the present invention provides an embodiment of a high efficiency formaldehyde oxidizer:
referring to fig. 1, a high-efficiency formaldehyde oxidizer structurally comprises a feeding ring cylinder 1, a motor 2, a formaldehyde oxidation reaction tank 3, a support 4, a controller 5, a discharge valve 6, a base 7 and a formaldehyde solution collecting box 8, wherein the feeding ring cylinder 1 is arranged at the top of the formaldehyde oxidation reaction tank 3, the feeding ring cylinder 1 is connected with the formaldehyde oxidation reaction tank 3, the motor 2 is arranged under the feeding ring cylinder 1, the motor 2 is matched with the feeding ring cylinder 1, the formaldehyde solution collecting box 8 is arranged at the bottom of the formaldehyde oxidation reaction tank 3, the formaldehyde solution collecting box 8 is matched with the formaldehyde oxidation reaction tank 3, the controller 5 is arranged at the center of the front end of the formaldehyde solution collecting box 8, the discharge valve 6 is arranged at the center of the bottom of the formaldehyde solution collecting box 8, the discharge valve 6 is connected with the formaldehyde solution collecting box 8, the base 7 is arranged below the formaldehyde solution collecting box 8, the top of the base 7 is provided with a support 4, and the base 7 is connected with a formaldehyde solution collection box 8 through the support 4.
Referring to fig. 2, the formaldehyde oxidation reaction tank 3 is composed of a stirring mechanism 31, an air valve 32, a reaction mechanism 33, and a heating constant temperature mechanism 34, the stirring mechanism 31 is disposed at the center of the top of the reaction mechanism 33, the stirring mechanism 31 is matched with the reaction mechanism 33, two air valves 32 are disposed at the front and rear ends of the stirring mechanism 31 in an axisymmetric structure, the heating constant temperature mechanism 34 is disposed on the outer ring of the reaction mechanism 33, and the stirring mechanism 31 is matched with the heating constant temperature mechanism 34 through the air valve 32.
Referring to fig. 3, the stirring mechanism 31 is composed of a fan housing 31a, an impeller 31b, a shaft rod 31c, stirring round rods 31d and a heat exchange turntable 31e, the impeller 31b is arranged inside the fan housing 31a, an air inlet formed in the bottom of the fan housing 31a is connected with an air valve 32, the shaft rod 31c is arranged below the fan housing 31a, the top end of the shaft rod 31c is connected with the impeller 31b, the shaft rod 31c rotates through a driving torque generated by the motor 2, the heat exchange turntable 31e is arranged at the bottom end of the shaft rod 31c, the heat exchange turntable 31e is connected with the shaft rod 31c, the three stirring round rods 31d are arranged in the middle position of the shaft rod 31c in parallel at equal intervals, and the stirring round rods 31d are connected with the shaft rod 31 c.
Referring to fig. 4, the heat exchange turntable 31e is composed of a heat transfer jacket 31e1, heat transfer rings 31e2, heat transfer inner rings 31e3, heat transfer rods 31e4 and stirring straight rods 31e5, eight heat transfer jackets 31e1 are uniformly and equidistantly arranged on the outer ring of the heat transfer ring 31e2, the heat transfer jacket 31e1 and the heat transfer rings 31e2 are in sliding fit, four heat transfer rods 31e4 are uniformly and equidistantly arranged on the inner ring of the heat transfer rings 31e2, the heat transfer rods 31e4 and the heat transfer rings 31e2 are welded, heat transfer inner rings 31e3 are arranged below the heat transfer rings 31e2, the heat transfer inner rings 31e3 are connected with the heat transfer rings 31e2 through heat transfer rods 31e4, eight stirring straight rods 31e5 are uniformly and equidistantly arranged at the bottom of the heat transfer inner rings 31e3, and the stirring straight rods 31e5 are vertically fixed on the bottom of the heat transfer inner rings 31e 3.
Referring to fig. 5, the reaction mechanism 33 is composed of a ceramic inner container 33a, a heat insulation tank 33b, a filtrate cover 33c and a bottom ring 33d, the ceramic inner container 33a is arranged inside the heat insulation tank 33b, the ceramic inner container 33a and the heat insulation tank 33b are in sliding fit, the bottom ring 33d is arranged at the bottom of the heat insulation tank 33b, the bottom ring 33d is buckled with the heat insulation tank 33b, the filtrate cover 33c is arranged at the center of the bottom ring 33d, the filtrate cover 33c is buckled with the bottom ring 33d, and the ceramic inner container 33a is connected with the formaldehyde solution collection box 8 through the filtrate cover 33 c.
Referring to fig. 6, the heating thermostat 34 is composed of a heating rod 34a, an air pipe 34b, air inlet fins 34c and a connecting pipe 34d, the heating rod 34a is arranged on the inner wall of the air pipe 34b, the heating rod 34a is in a circular ring structure and is embedded in the air pipe 34b, the air pipe 34b is connected with the outer ring of the ceramic liner 33a through the heating rod 34a, the air pipe 34b is provided with two connecting pipes 34d in an axisymmetric structure, the air inlet fins 34c are distributed at the front end of the connecting pipe 34d, the air inlet fins 34c are connected with the connecting pipe 34d, the air pipe 34b is in a circular ring structure and is arranged on the outer ring of the heat insulation tank 33b in parallel one by one, and the air inlet fins 34c are obliquely arranged on the air inlet at the front end of the connecting pipe 34d from top to.
The heat transfer jackets 31e1 are enclosed into a ring wall structure along the heat transfer rings 31e2, and the heat transfer jackets 31e1 are fixed on the inner wall of the ceramic inner container 33 a.
The heat transfer ring 31e2 is connected with the shaft rod 31c through a central clamping point surrounded by four heat transfer rods 31e 4.
The heat insulation tank also comprises two connecting pipes 34d which form a triangular structure and are arranged and butted between two air pipes 34b, each air pipe 34b is connected one by one through the connecting pipe 34d, and the air pipe 34b arranged at the upper end of the heat insulation tank 33b is connected with the air valve 32.
When in use, in combination with the first embodiment, the air pipe 34b directly heats the ceramic inner container 33a through the built-in heating rod 34a, so that the temperature in the tank rises rapidly, the heat is uniformly distributed at each position in the tank through the formed stirring structure, the temperature difference dead angle is reduced, the generation of side reactants is reduced, when the temperature in the tank is stabilized at a reaction temperature value, the air valve 32 is automatically opened, the impeller 31b rotates along with the shaft rod 31c, air negative pressure is generated inside the air hood 31a, air is supplied through the air supply fins 34c arranged on the connection pipe 34d, the air is discharged through the air outlet arranged at the top of the air hood 31a, under the heat transfer structure formed by the air pipe 34b, the air supply fins 34c and the connection pipe 34d, the flowing air realizes rapid heat exchange between the air pipe 34b and the connection pipe 34d, and the surplus waste heat generated by the heating rod 34a follows the air, so that the temperature in the tank can be stabilized at, and the excess waste heat is used to generate electricity, providing part of the energy consumption for the heater rod 34 a.
The specific realization principle is as follows:
the formaldehyde oxidation reaction tank 3 can quickly raise the temperature in the tank to 600-plus-700 ℃ through the formed heating structure, and can quickly transmit much waste heat energy from one point to another point for utilization through the formed heat dissipation structure after the temperature in the tank rises to 600-plus-700 ℃ so as to continuously stabilize the temperature in the tank at 600-plus-700 ℃ and reduce energy consumption required in the oxidation reaction, because the air pipes 34b are in a circular structure and are arranged on the outer ring of the heat insulation tank 33b in parallel one by one, and the ceramic inner container 33a is directly heated through the built-in heating rods 34a so as to quickly raise the temperature in the tank, and through the formed stirring structure, the heat is uniformly distributed at each position in the tank, so that dead corners of temperature difference are reduced, the generation of side reactants is reduced, when the temperature in the tank is stabilized at a reaction temperature value, the air valve 32 is automatically opened, when the impeller 31b rotates along with the shaft rod 31c, air negative pressure is generated inside the fan cover 31a, air is fed by the air inlet fins 34c arranged on the connecting pipe 34d, air is discharged by the air outlet arranged on the top of the fan cover 31a, flowing air realizes rapid heat exchange between the air pipe 34b and the connecting pipe 34d under a heat transfer structure formed by the air pipe 34b, the air inlet fins 34c and the connecting pipe 34d, and redundant waste heat generated by the heating rod 34a is discharged along with the air, so that the temperature in the tank can be always stabilized at a reaction temperature value, the redundant waste heat is used for power generation, partial energy consumption is provided for the heating rod 34a, and the generated heat can be timely transferred to substances and oxides required for preparing formaldehyde through a formed stirring structure, the substances and the oxides required for preparing formaldehyde are fully oxidized to directly generate formaldehyde, and generation of secondary reactants is reduced, because the heat transfer ring 31e2 is connected with the shaft rod 31c through a central clamping point surrounded by four heat transfer rods 31e4, and heat transfer ring 31e2 and the heat transfer jacket 31e1 sliding fit who fixes on ceramic inner bag 33a inner wall for the heat that ceramic inner bag 33a produced through heating rod 34a can transmit to axostylus axostyle 31c fast, let stirring round bar 31d and stirring straight-bar 31e5 possess higher heat at the stirring in-process, make the heat that produces can in time transmit to the required material of preparation formaldehyde and oxide on, improve the heated degree and the reaction rate of material, prevent that the material from bonding on stirring part surface.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.