Formaldehyde control device and fabric processing technology for preparing flame-retardant fabrics based on ammonia fumigation

Abstract

The invention relates to the field of textile technology, and in particular to a formaldehyde control device and a fabric processing process for preparing flame-retardant fabrics based on an ammonia fumigation method. The device comprises a bracket, a tank body is arranged on the bracket, a heating mechanism is arranged on the inner wall of the tank body, a stirring mechanism is arranged inside the tank body, a feed inlet, a dosing port and a water inlet are respectively arranged on the top of the tank body, a sewage outlet is also arranged on the bottom of the tank body, and a formaldehyde efficient removal device for cleaning formaldehyde in the fabric is also included. The formaldehyde efficient removal device comprises a lifting rod and a drainage mechanism, the lifting rod is coaxially arranged on the tank body, the lifting rod can move vertically in the tank body, a lifter for driving the lifting rod to move is arranged on the top of the tank body, the drainage mechanism is arranged at the lower end of the lifting rod, the drainage mechanism is located in the tank body, and the stirring mechanism is arranged on the lifting rod. The application achieves better discharge of formaldehyde in the fabric by guiding the fabric and squeezing the fabric by the drainage mechanism, thereby improving the cleaning effect of the fabric.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method and a fabric processing technology. Background Art

[0002] After the fabric is finished with flame retardants, in order to achieve the effect of washing resistance, it is necessary to cross-link the fibers in the fabric with the flame retardant. There are usually two methods: ammonia fumigation and baking. The ammonia fumigation method is to pass the fabric through an ammonia fumigation chamber filled with gasified liquid ammonia, so that the fibers in the fabric and the flame retardant are cross-linked through NH3 molecules, and then use hydrogen peroxide to oxidize the P3+ in the flame retardant into a more stable P5+ state, thereby achieving the effect of washing resistance. The shortcomings of the existing ammonia fumigation fabric formaldehyde control device are: 1. The residual formaldehyde content of the fabric produced by the device is much higher than that of the baking method, and the hydroxymethyl in the molecular structure of the flame retardant on the fabric is broken, which will release formaldehyde. 2. The structure is complex and the operation is inconvenient. At the same time, the formaldehyde in the sewage can be filtered, and the sewage containing formaldehyde is directly discharged, affecting the surrounding environment. 3. The fabric cleaning effect is not good.

[0003] The currently disclosed Chinese patent CN201921980299.6 is a formaldehyde control device for flame-retardant fabrics finished by ammonia fumigation, including a tank body, a filter tube and a water pump. A reduction motor is installed on the top of the tank body through a mounting frame, and the power output shaft at the bottom of the reduction motor is connected to a stirring rod through a connecting sleeve, a three-way valve is connected to the other end of the top of the tank body through a threaded groove, a metering pump is installed on one end of the tank body through a mounting frame, and a water pump is installed on the lower end of the metering pump through the mounting frame, a formaldehyde detector is installed on the other end of the tank body through a mounting seat, a connecting pipe is welded to the bottom of the tank body, and an electric valve is sleeved on the outside of the connecting pipe, a filter tube is welded to the bottom of the connecting pipe, and the inside of the filter tube is filled with activated carbon, a heating plate is fixed to the inner wall of the tank body by bolts, and an electric heating wire is fixed to the inside of the heating plate by bolts.

[0004] According to the above patent, the patent stirs the fabric by a stirring rod to remove formaldehyde on the fabric. However, the patent's fabric cleaning method makes it impossible for the formaldehyde to be completely volatilized, and a large amount of sewage will remain on the fabric when the sewage is finally discharged, which cannot be discharged. Therefore, there is a need for a device that can efficiently treat formaldehyde on fabric. Summary of the invention

[0005] Based on this, it is necessary to provide a formaldehyde control device for preparing flame-retardant fabrics based on the ammonia fumigation method to address the existing technical problems. The present application achieves better discharge of formaldehyde inside the fabric by guiding the fabric through a drainage mechanism and squeezing the fabric, thereby improving the cleaning effect of the fabric.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] The present invention provides a formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method, comprising a bracket, a tank body is arranged on the bracket, a heating mechanism is arranged on the inner wall of the tank body, a stirring mechanism is also arranged inside the tank body, a feed inlet, a dosing inlet and a water inlet are respectively arranged on the top of the tank body, a sewage outlet is also arranged on the bottom of the tank body, and a formaldehyde efficient removal device for cleaning formaldehyde in the fabric is also included, the formaldehyde efficient removal device comprises a lifting rod and a drainage mechanism, the lifting rod is coaxially arranged on the tank body, the lifting rod can move vertically in the tank body, a lifter for driving the lifting rod to move is arranged on the top of the tank body, the drainage mechanism is arranged at the lower end of the lifting rod, the drainage mechanism is located in the tank body, and the stirring mechanism is arranged on the lifting rod.

[0008] Optionally, the drainage mechanism includes an end plate, a sliding sleeve and an umbrella support member, the end plate is fixed to the lower end of the lifting rod, the sliding sleeve is arranged on the lifting rod, the umbrella support member is arranged between the end plate and the sliding sleeve, the sliding sleeve can move on the lifting rod along its axial direction, and the lifting rod is also provided with a driving member for driving the sliding sleeve to slide.

[0009] Optionally, the umbrella support member has a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod have multiple pairs, and the multiple pairs of first connecting rods and the second connecting rods are evenly distributed along the circumferential direction of the lifting rod, one end of each pair of the first connecting rod and the second connecting rod is respectively hinged on the sliding sleeve and the end plate, and the other end of each pair of the first connecting rod and the second connecting rod is hinged by a pin shaft, and the hinged end of each pair of the first connecting rod and the second connecting rod is in contact with the inner wall of the tank body, and a first flexible panel and a second flexible panel are respectively connected between every two adjacent first connecting rods and between every two adjacent second connecting rods.

[0010] Optionally, the driving member has a hollow column, a movable column and an airbag, the hollow column is coaxially sleeved on the lifting rod, the end of the hollow column is fixedly connected to the end plate, the movable column is coaxially and slidably inserted in the hollow column, one end of the movable column is fixedly connected to the sliding sleeve, the airbag is sleeved on the lower end of the lifting rod and the airbag is located in the hollow column, a pipe opening is opened on the lifting rod along its axial direction, and an air hole connected to the pipe opening is also opened at the position of the airbag on the lifting rod.

[0011] Optionally, an electric fan is sleeved on the hollow column, and the output direction of the electric fan is toward the first flexible panel.

[0012] Optionally, a compression spring is provided on the movable column, and two ends of the compression spring are respectively fixedly connected to the lower end surface of the sliding sleeve and the upper end surface of the hollow column.

[0013] Optionally, a seal is also provided on the umbrella support member, and the seal has a sealing ring sleeve and a sealing gasket. The sealing ring sleeve is connected between the edge of each first flexible panel and the corresponding second flexible panel. There are two sealing gaskets, which are respectively arranged on the lower surface of the sliding sleeve and the upper surface of the end plate, and each sealing gasket is also respectively connected to the corresponding first flexible panel and the second flexible panel.

[0014] Optionally, the stirring mechanism includes a sleeve rod, a first stirring rod and a second stirring rod, the sleeve rod is sleeved on the lifting rod, the first stirring rod is arranged at the lower end of the sleeve rod, the rod length direction of the first stirring rod is parallel to the rod length direction of the first connecting rod, the first stirring rod is located at a position close to the outer surfaces of the multiple first flexible panels, the second stirring rod has multiple, the multiple second stirring rods are arranged on the sleeve rod at equal intervals along the axial direction of the sleeve rod, the multiple second stirring rods are located above the first stirring rod, the sleeve rod can rotate on the lifting rod, and a rotating drive for driving the sleeve rod to rotate is also provided on the top of the tank body.

[0015] Optionally, the heating mechanism includes a heat conducting plate and a heating wire, the heat conducting plate is cylindrical, the heat conducting plate is coaxially arranged in the tank body, a heating space is left between the heat conducting plate and the tank body, there are a plurality of heating wires, the plurality of heating wires are sleeved on the heat conducting plate at equal intervals along the axial direction of the heat conducting plate, and the heating space between every two adjacent heating wires is also filled with magnesium oxide powder;

[0016] A plurality of activated carbon nets are arranged in the sewage outlet of the tank.

[0017] Optionally, a fabric processing process uses a formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method as described in any of claims 1-9 during the processing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This application achieves better discharge of formaldehyde inside the fabric and improves the cleaning effect of the fabric by guiding and squeezing the fabric through the drainage mechanism.

[0020] 2. The present application realizes the guidance and squeezing of fabrics by setting up the umbrella support and driving the opening and closing of the umbrella support by the sliding sleeve, thereby improving the volatilization of formaldehyde from the fabrics and the effect of sewage discharge.

[0021] 3. The present application realizes the guidance and squeezing of fabrics through the structure of the umbrella support, thereby improving the effect of removing formaldehyde from the fabrics and the effect of discharging sewage.

[0022] 4. The present application realizes the sliding of the sliding sleeve on the lifting rod by pushing the movable column through the expansion of the airbag, thereby driving the opening and closing of the umbrella support and promoting the guidance of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0025] Figure 2 is a top view of the present application;

[0026] Figure 3 It is a right view of the present application;

[0027] Figure 4 yes Figure 2 A local three-dimensional structure cross-sectional view at AA;

[0028] Figure 5 yes Figure 3 Cross-sectional view at BB;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of a formaldehyde efficient removal device;

[0030] Figure 7 yes Figure 6 The main view;

[0031] Figure 8 yes Figure 7 Cross-sectional view at CC;

[0032] Fig. 9 It is a schematic diagram of the partial three-dimensional structure of a formaldehyde efficient removal device;

[0033] Fig.10 yes Fig. 9 The main view;

[0034] Fig.11 yes Figure 8 An enlarged schematic diagram of point D;

[0035] Fig.12 yes Figure 8 An enlarged schematic diagram of point E;

[0036] Fig.13 yes Figure 5 Enlarged schematic diagram of point F.

[0037] The numbers in the figure are:

[0038] 1- Bracket;

[0039] 2-tank body; 2a-feeding port; 2b-adding port; 2c-water adding port; 2d-draining port;

[0040] 3-heating mechanism; 3a-heat conducting plate; 3b-heating wire; 3c-magnesium oxide powder;

[0041] 4-stirring mechanism; 4a-sleeve rod; 4b-first stirring rod; 4c-second stirring rod; 4d-rotation drive;

[0042] 5-high-efficiency formaldehyde removal device; 5a-lifting rod; 5a1-lifter; 5a2-pipe mouth; 5a3-air hole; 5b-drainage mechanism; 5b1-end plate; 5b2-sliding sleeve; 5b3-umbrella support member; 5b31-first connecting rod; 5b32-second connecting rod; 5b33-first flexible panel; 5b34-second flexible panel;

[0043] 6-driving member; 6a-hollow column; 6b-movable column; 6b1-compression spring; 6c-air bag; 6d-electric fan;

[0044] 7-seal; 7a-seal ring sleeve; 7b-seal gasket;

[0045] 8- Activated carbon net. DETAILED DESCRIPTION

[0046] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] like Figure 1-Figure 5 As shown, this application provides:

[0048] A formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method comprises a bracket 1, a tank body 2 is arranged on the bracket 1, a heating mechanism 3 is arranged on the inner wall of the tank body 2, a stirring mechanism 4 is also arranged inside the tank body 2, a feed port 2a, a dosing port 2b and a water inlet 2c are respectively opened on the top of the tank body 2, a sewage outlet 2d is also opened at the bottom of the tank body 2, and a formaldehyde efficient removal device 5 for cleaning formaldehyde in the fabric is also included, the formaldehyde efficient removal device 5 comprises a lifting rod 5a and a drainage mechanism 5b, the lifting rod 5a is coaxially arranged on the tank body 2, the lifting rod 5a can move vertically in the tank body 2, a lifter 5a1 for driving the lifting rod 5a to move is arranged on the top of the tank body 2, the drainage mechanism 5b is arranged at the lower end of the lifting rod 5a, the drainage mechanism 5b is located in the tank body 2, and the stirring mechanism 4 is arranged on the lifting rod 5a.

[0049] Based on the above embodiments, the technical problem that the present application intends to solve is how to remove the formaldehyde on the fabric. To this end, the present application puts the fabric into the tank body 2 through the feed port 2a, and then puts the formaldehyde capture agent into the tank body 2 through the dosing port 2b, so that the fabric is immersed in the formaldehyde capture agent to remove the formaldehyde inside the fabric. As the fabric is stirred by the stirring mechanism 4, the fabric and the formaldehyde capture agent are fully contacted, which promotes the formaldehyde capture agent to penetrate into the fabric. After soaking for a period of time, clean water is added through the water inlet 2c to clean the fabric. The heating mechanism 3 is also turned on to heat the inside of the tank body 2. Due to the action of the drainage mechanism 5b, the fabric will contact the heating mechanism 3, which promotes the fabric to be better heated and the formaldehyde in the fabric to be better volatilized. As the stirring mechanism 4 stirs the fabric, the fabric and the formaldehyde capture agent are fully contacted, which promotes the formaldehyde capture agent to penetrate into the fabric. After soaking for a period of time, clean water is added through the water inlet 2c to clean the fabric. The heating mechanism 3 is also turned on to heat the inside of the tank body 2. Due to the action of the drainage mechanism 5b, the fabric will contact the heating mechanism 3, which promotes the fabric to be better heated and the formaldehyde in the fabric to be better volatilized. The fabric is stirred and fully cleaned. After the fabric has been cleaned for a period of time, the lifter 5a1 drives the lifting rod 5a to move upward, prompting the drainage mechanism 5b to move upward and leave the bottom of the tank body 2. As the drainage mechanism 5b is driven, the fabric is led to the bottom of the tank body 2. The fabric is still below the drainage mechanism 5b, and the sewage from cleaning the fabric is discharged through the sewage outlet 2d of the tank body 2. Since there is still sewage in the fabric that has not been discharged, the drainage mechanism 5b is driven to move downward under the action of the lifting rod 5a, and the drainage mechanism 5b squeezes the fabric at the bottom of the tank body 2, prompting the sewage therein to be discharged, and the fabric is also better treated.

[0050] Further, such as Figure 6-Figure 10 As shown:

[0051] The drainage mechanism 5b includes an end plate 5b1, a sliding sleeve 5b2 and an umbrella support member 5b3. The end plate 5b1 is fixed to the lower end of the lifting rod 5a, the sliding sleeve 5b2 is slidably mounted on the lifting rod 5a, and the umbrella support member 5b3 is arranged between the end plate 5b1 and the sliding sleeve 5b2. The sliding sleeve 5b2 can move on the lifting rod 5a along its axial direction. The lifting rod 5a is also provided with a driving member 6 for driving the sliding sleeve 5b2 to slide.

[0052] Based on the above embodiments, the technical problem that the present application intends to solve is how the drainage mechanism 5b guides the fabric toward the heating mechanism 3 and downward. To this end, the present application sets the umbrella support member 5b3, and the fabric will naturally flow toward the direction of the heating mechanism 3 after falling on the surface of the umbrella support member 5b3. The fabric is in contact with the heating mechanism 3, and when the heating mechanism 3 is heated, the formaldehyde in the fabric can also be better volatilized. As the driving member 6 drives the sliding sleeve 5b2, the sliding sleeve 5b2 slides on the lifting rod 5a, and the umbrella support member 5b3 is opened accordingly, and the fabric also slides along the umbrella support member 5b3 to the bottom of the tank body 2. After the fabric falls, the sliding sleeve 5b2 moves to drive the umbrella support member 5b3 back to a normal state, and the movement of the lifting rod 5a drives the umbrella support member 5b3 to move toward the fabric, and the umbrella support member 5b3 is squeezed on the fabric, so that the sewage in the fabric is further discharged.

[0053] Further, such as Figure 7 and Figure 8 As shown:

[0054] The umbrella support member 5b3 has a first connecting rod 5b31 and a second connecting rod 5b32, and the first connecting rod 5b31 and the second connecting rod 5b32 have multiple pairs, and the multiple pairs of first connecting rods 5b31 and second connecting rods 5b32 are evenly distributed along the circumferential direction of the lifting rod 5a, and one end of each pair of the first connecting rod 5b31 and the second connecting rod 5b32 is respectively hinged on the sliding sleeve 5b2 and the end plate 5b1, and the other ends of each pair of the first connecting rod 5b31 and the second connecting rod 5b32 are hinged through a pin shaft, and the hinged ends of each pair of the first connecting rod 5b31 and the second connecting rod 5b32 are in contact with the inner wall of the tank body 2, and a first flexible panel 5b33 and a second flexible panel 5b34 are respectively connected between every two adjacent first connecting rods 5b31 and between every two adjacent second connecting rods 5b32.

[0055] Based on the above embodiments, the technical problem that the present application intends to solve is how the umbrella support member 5b3 moves through the sliding sleeve 5b2. To this end, the present application uses the hinged arrangement of the first connecting rod 5b31 and the second connecting rod 5b32 of the umbrella support member 5b3. When the sliding sleeve 5b2 moves upward, the first connecting rod 5b31 will be pulled upward, and the hinged ends of the first connecting rod 5b31 and the second connecting rod 5b32 will not contact the heating mechanism 3 on the inner wall of the tank body 2, and a gap will be opened, so that the fabric can slide down to the bottom of the tank body 2 along the first flexible panel 5b33 on the first connection. Due to the arrangement of the second flexible panel 5b34 on the second connecting rod 5b32, as the umbrella support member 5b3 moves downward, the second flexible panel 5b34 is squeezed on the fabric to discharge the sewage in the fabric.

[0056] Further, such as Fig.11 and Fig.12 As shown:

[0057] The driving member 6 comprises a hollow column 6a, a movable column 6b and an airbag 6c. The hollow column 6a is coaxially sleeved on the lifting rod 5a. The end of the hollow column 6a is fixedly connected to the end plate 5b1. The movable column 6b is coaxially and slidably inserted in the hollow column 6a. One end of the movable column 6b is fixedly connected to the sliding sleeve 5b2. The airbag 6c is sleeved on the lower end of the lifting rod 5a and is located in the hollow column 6a. A pipe opening 5a2 is opened on the lifting rod 5a along its axial direction, and an air hole 5a3 connected to the pipe opening 5a2 is also opened on the lifting rod 5a at the position of the airbag 6c.

[0058] Based on the above embodiments, the technical problem that the present application intends to solve is how the driving member 6 drives the sliding sleeve 5b2 to move. To this end, the present application vents air into the interior of the lifting rod 5a through the nozzle 5a2 of the lifting rod 5a, and the air is ejected through the air hole 5a3, causing the airbag 6c to expand. After the airbag 6c expands, it causes the movable column 6b to move upward in the hollow column 6a, and the hollow column 6a then pushes the sliding sleeve 5b2 upward, completing the sliding of the sliding sleeve 5b2.

[0059] Further, such as Figure 8-Figure 10 As shown:

[0060] An electric fan 6d is sleeved on the hollow column 6a, and the output direction of the electric fan 6d is toward the first flexible panel 5b33.

[0061] Based on the above embodiment, when the electric fan 6d is turned on, the electric fan 6d blows air in the direction of the first flexible panel 5b33. Each of the first connecting rod 5b31 and the second connecting rod 5b32 is provided with a heating rod. Due to the heating of the heating rod and the blowing of the electric fan 6d, the hot air floats in the direction of the first flexible panel 5b33. The hot air contacts the first flexible panel 5b33, causing the first flexible panel 5b33 to become hot, thereby better promoting the volatilization of formaldehyde inside the fabric.

[0062] Further, such as Fig.12 As shown:

[0063] A compression spring 6b1 is sleeved on the movable column 6b, and two ends of the compression spring 6b1 are fixedly connected to the lower end surface of the sliding sleeve 5b2 and the upper end surface of the hollow column 6a respectively.

[0064] Based on the above embodiment, when the sliding sleeve 5b2 slides upward, the fabric slides along the gap to the bottom of the tank body 2, the air in the lifting rod 5a is deflated, and the airbag 6c returns to a normal state. Under the action of the compression spring 6b1, the sliding sleeve 5b2 returns to its original position, and the umbrella support member 5b3 closes the gap with the tank body 2, and then squeezes the fabric to discharge the sewage therein.

[0065] Further, such as Figure 7-Figure 9 As shown:

[0066] A seal 7 is also provided on the umbrella support member 5b3. The seal 7 has a sealing ring sleeve 7a and a sealing gasket 7b. The sealing ring sleeve 7a is connected between the edge of each first flexible panel 5b33 and the corresponding second flexible panel 5b34. There are two sealing gaskets 7b. The two sealing gaskets 7b are respectively arranged on the lower surface of the sliding sleeve 5b2 and the upper surface of the end plate 5b1, and each sealing gasket 7b is also respectively connected to the corresponding first flexible panel 5b33 and the second flexible panel 5b34.

[0067] Based on the above embodiment, when the umbrella support member 5b3 changes its open or closed state, due to the arrangement of the sealing ring sleeve 7a and the sealing gasket 7b, sewage will not enter the space inside the umbrella support member 5b3 which is surrounded by the first flexible panel 5b33 and the second flexible panel 5b34, thereby avoiding affecting the opening and closing of the umbrella support member 5b3.

[0068] Further, such as Figure 8 As shown:

[0069] The stirring mechanism 4 includes a sleeve rod 4a, a first stirring rod 4b and a second stirring rod 4c. The sleeve rod 4a is sleeved on the lifting rod 5a, and the first stirring rod 4b is arranged at the lower end of the sleeve rod 4a. The rod length direction of the first stirring rod 4b is parallel to the rod length direction of the first connecting rod 5b31. The first stirring rod 4b is located at a position close to the outer surface of multiple first flexible panels 5b33. There are multiple second stirring rods 4c, and the multiple second stirring rods 4c are arranged on the sleeve rod 4a at equal intervals along the axial direction of the sleeve rod 4a. The multiple second stirring rods 4c are located above the first stirring rod 4b. The sleeve rod 4a can rotate on the lifting rod 5a, and a rotating driver 4d for driving the sleeve rod 4a to rotate is also provided on the top of the tank body 2.

[0070] Based on the above embodiment, when the stirring mechanism 4 stirs the fabric, the rotary driver 4d drives the sleeve rod 4a to rotate, and the sleeve rod 4a rotates and then drives the first stirring rod 4b and the second stirring rod 4c to rotate. The first stirring rod 4b rotates along the surface of the first flexible panel 5b33, so that the fabric can be stirred on the first flexible panel 5b33, and with the stirring of the first stirring rod 4b and the inclined surface of the first flexible panel 5b33, the fabric will be centrifugally thrown toward the direction of the heating mechanism 3, and the fabric contacts the heating mechanism 3, which promotes better volatilization of formaldehyde in the fabric.

[0071] Further, such as Fig.13 As shown:

[0072] The heating mechanism 3 includes a heat conducting plate 3a and a heating wire 3b. The heat conducting plate 3a is cylindrical and coaxially arranged in the tank body 2. A heating space is left between the heat conducting plate 3a and the tank body 2. There are a plurality of heating wires 3b, which are equally spaced on the heat conducting plate 3a along the axial direction of the heat conducting plate 3a, and the heating space between every two adjacent heating wires 3b is also filled with magnesium oxide powder 3c.

[0073] Based on the above embodiment, when the heating mechanism 3 is heated, the heating wire 3b is heated. Due to the setting of the heat conducting plate 3a, the heating wire 3b transfers heat to the heat conducting plate 3a, and due to the filling of magnesium oxide powder 3c, the thermal conductivity effect is better, and the heat is transferred to the fabric, which promotes the volatilization of formaldehyde in the fabric.

[0074] Further, such as Figure 5 As shown:

[0075] A plurality of activated carbon nets 8 are arranged in the sewage outlet 2d of the tank body 2.

[0076] Based on the above embodiment, when sewage is discharged, the sewage passes through a plurality of activated carbon nets 8 to adsorb formaldehyde in the sewage to avoid polluting the environment when discharged.

[0077] The present application achieves better discharge of formaldehyde inside the fabric and improves the cleaning effect of the fabric by guiding and squeezing the fabric through the drainage mechanism 5b.

[0078] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method, comprising a support (1), a tank body (2) being provided on the support (1), a heating mechanism (3) being provided on the inner wall of the tank body (2), a stirring mechanism (4) being provided inside the tank body (2), a feed inlet (2a), a dosing inlet (2b) and a water inlet (2c) being provided at the top of the tank body (2), and a sewage outlet (2d) being provided at the bottom of the tank body (2). It is characterized in that Also included is a formaldehyde efficient removal device (5) for removing formaldehyde in fabrics, the formaldehyde efficient removal device (5) comprising a lifting rod (5a) and a drainage mechanism (5b), the lifting rod (5a) being coaxially arranged on the tank body (2), the lifting rod (5a) being able to move vertically in the tank body (2), a lifter (5a1) being arranged on the top of the tank body (2) for driving the lifting rod (5a) to move, the drainage mechanism (5b) being arranged at the lower end of the lifting rod (5a), the drainage mechanism (5b) being located in the tank body (2), and the stirring mechanism (4) being arranged on the lifting rod (5a); The drainage mechanism (5b) comprises an end plate (5b1), a sliding sleeve (5b2) and an umbrella support member (5b3); the end plate (5b1) is fixed to the lower end of the lifting rod (5a); the sliding sleeve (5b2) is slidingly mounted on the lifting rod (5a); the umbrella support member (5b3) is arranged between the end plate (5b1) and the sliding sleeve (5b2); the sliding sleeve (5b2) can move on the lifting rod (5a) along its axial direction; and the lifting rod (5a) is further provided with a driving member (6) for driving the sliding sleeve (5b2) to slide. The umbrella support member (5b3) comprises a first connecting rod (5b31) and a second connecting rod (5b32), wherein the first connecting rod (5b31) and the second connecting rod (5b32) comprise a plurality of pairs, and the plurality of pairs of the first connecting rod (5b31) and the second connecting rod (5b32) are evenly distributed along the circumferential direction of the lifting rod (5a), one end of each pair of the first connecting rod (5b31) and the second connecting rod (5b32) are respectively hinged on the sliding sleeve (5b2) and the end plate (5b1), the other ends of each pair of the first connecting rod (5b31) and the second connecting rod (5b32) are hinged via a pin, the hinged ends of each pair of the first connecting rod (5b31) and the second connecting rod (5b32) are respectively abutted against the inner wall of the tank body (2), and a first flexible panel (5b33) and a second flexible panel (5b34) are respectively connected between every two adjacent first connecting rods (5b31) and between every two adjacent second connecting rods (5b32).

2. A formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 1, It is characterized in that The driving member (6) comprises a hollow column (6a), a movable column (6b) and an airbag (6c); the hollow column (6a) is coaxially sleeved on the lifting rod (5a); the end of the hollow column (6a) is fixedly connected to the end plate (5b1); the movable column (6b) is coaxially and slidably inserted in the hollow column (6a); one end of the movable column (6b) is fixedly connected to the sliding sleeve (5b2); the airbag (6c) is sleeved on the lower end of the lifting rod (5a) and the airbag (6c) is located in the hollow column (6a); a pipe opening (5a2) is provided on the lifting rod (5a) along its axial direction; and an air hole (5a3) communicating with the pipe opening (5a2) is also provided on the lifting rod (5a) at the position of the airbag (6c).

3. A formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 2, It is characterized in that An electric fan (6d) is sleeved on the hollow column (6a), and the output direction of the electric fan (6d) is toward the first flexible panel (5b33).

4. A formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 2, It is characterized in that A compression spring (6b1) is sleeved on the movable column (6b), and two ends of the compression spring (6b1) are respectively fixedly connected to the lower end surface of the sliding sleeve (5b2) and the upper end surface of the hollow column (6a).

5. A formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 1, It is characterized in that The umbrella support member (5b3) is also provided with a sealing member (7), the sealing member (7) comprising a sealing ring sleeve (7a) and a sealing gasket (7b), the sealing ring sleeve (7a) being connected between the edge of each first flexible panel (5b33) and the corresponding second flexible panel (5b34), and there being two sealing gaskets (7b), the two sealing gaskets (7b) being respectively arranged on the lower surface of the sliding sleeve (5b2) and the upper surface of the end plate (5b1), and each sealing gasket (7b) is also respectively connected to the corresponding first flexible panel (5b33) and the second flexible panel (5b34).

6. A formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 1, It is characterized in that The stirring mechanism (4) comprises a sleeve rod (4a), a first stirring rod (4b) and a second stirring rod (4c); the sleeve rod (4a) is sleeved on the lifting rod (5a); the first stirring rod (4b) is arranged at the lower end of the sleeve rod (4a); the length direction of the first stirring rod (4b) is parallel to the length direction of the first connecting rod (5b31); the first stirring rod (4b) is located at a position close to the outer surface of the plurality of first flexible panels (5b33); the second stirring rod (4c) has a plurality of second stirring rods (4c); the plurality of second stirring rods (4c) are arranged on the sleeve rod (4a) at equal intervals along the axis direction of the sleeve rod (4a); the plurality of second stirring rods (4c) are located above the first stirring rod (4b); the sleeve rod (4a) is capable of rotating on the lifting rod (5a); and a rotating driver (4d) for driving the sleeve rod (4a) to rotate is also provided on the top of the tank body (2).

7. The formaldehyde control device for preparing flame-retardant fabrics based on ammonia fumigation method according to claim 1, It is characterized in that The heating mechanism (3) comprises a heat conducting plate (3a) and a heating wire (3b); the heat conducting plate (3a) is cylindrical and coaxially arranged in the tank body (2); a heating space is left between the heat conducting plate (3a) and the tank body (2); there are a plurality of heating wires (3b); the plurality of heating wires (3b) are sleeved on the heat conducting plate (3a) at equal intervals along the axial direction of the heat conducting plate (3a); and the heating space between every two adjacent heating wires (3b) is filled with magnesium oxide powder (3c); A plurality of activated carbon nets (8) are arranged in the sewage outlet (2d) of the tank body (2).

8. A fabric processing technology, It is characterized in that The fabric processing technology uses a formaldehyde control device for preparing flame-retardant fabrics based on an ammonia fumigation method as described in any one of claims 1 to 7 during the processing.

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