Novel continuous stirred tank reactor applied to biodiesel production

Abstract

The utility model discloses a novel continuous stirred tank reactor applied to biodiesel production, which comprises a bottom plate and relates to the technical field of biodiesel production. According to the novel continuous stirred tank reactor applied to biodiesel production, filter residues filtered by a filter screen frame are conveniently cleaned through a limiting rod and a spring telescopic rod, and during cleaning, a user pulls the limiting rod to push the filter screen frame on the lower side rightwards; at this time, a limiting rod enables an upper filter screen frame to be inserted into the reactor main body through a notch by virtue of a spring telescopic rod, so that subsequent filtration is facilitated, at the moment, a lower filter screen frame penetrates through the notch and enters a fixed box, and at the moment, filter residues filtered by the filter screen frames can be pressed to extrude out residual waste oil; and then waste oil flows into the reactor main body through the oil inlet, and then filter residues filtered by the filter screen frame below can be cleaned, so that the filter screen frame can be comprehensively cleaned, the situation that normal oil feeding of the waste oil is affected due to blockage of the filter plate is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biodiesel production, in particular to a novel continuous stirred tank reactor used for biodiesel production. Background Art

[0002] Biodiesel refers to fatty acid methyl esters or ethyl esters obtained through esterification and transesterification of animal and vegetable oils or waste oils with short-chain alcohols such as methanol, and then refined. The continuous stirred tank reactor is a key equipment used to improve production efficiency and product quality in the biodiesel production process.

[0003] Existing novel continuous stirred tank reactors for biodiesel production still have the following problems: existing devices generally stir and mix waste oil and a catalyst to produce biodiesel. Reference patent application number CN220258046U discloses a novel continuous stirred tank reactor for biodiesel production. The utility model includes a reactor body, a motor mounted on the top of the reactor body, a reciprocating screw connected to the output end of the motor, and a telescopic rod connected to the upper part of the reactor body. The utility model is provided with a reciprocating screw, a pressure plate, a filter plate, and a scraper. When biodiesel production is required, the raw material is filtered through the filter plate during entry, and the filter residue is retained on the filter plate. The user then starts the motor, causing the reciprocating screw to rotate and cooperate with the threaded sleeve to drive the upper plate and the pressure plate to move vertically downward. After the pressure plate contacts the filter residue on the filter plate, it stops moving downward, while the upper plate continues to move downward, compressing the spring. The spring exerts a reaction force on the pressure plate, causing the pressure plate to squeeze the filter residue. In this way, the waste of oil and fat is minimized during the biodiesel production process, achieving a higher conversion rate.

[0004] However, the above-mentioned technology uses a scraper to clean the filter residue on the filter plate, and the existing device uses a scraper to scrape the filter residue on the filter plate. The method cannot thoroughly clean the filter residue, which easily causes the filter plate to be blocked, affecting the normal oil discharge process of the waste oil, thereby reducing production efficiency and having general practicality. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a new continuous stirred tank reactor for biodiesel production, which solves the problem that the existing new continuous stirred tank reactor for biodiesel production cannot thoroughly clean the filter residue, easily causes the filter plate to be blocked, affects the normal oil discharge process of the waste oil, and thus reduces production efficiency and has general practicality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a novel continuous stirred tank reactor for biodiesel production, comprising a bottom plate, a reactor body fixedly mounted on the top surface of the bottom plate, and a reaction mechanism disposed inside the reactor body for mixing and stirring filtered waste oil with a catalyst, the reaction mechanism comprising:

[0007] A filtering mechanism is provided inside the reactor body for filtering filter residue in the waste oil. The filtering mechanism includes two filter frames movably mounted inside the bottom plate. Two limit slots are provided on the front and rear sides of the reactor body. Limit rods are fixedly installed on the front and rear sides of the two filter frames. A cleaning assembly is provided on the outside of the bottom plate for conveniently cleaning the filter residue filtered by the two filter frames.

[0008] The stirring assembly is arranged inside the bottom plate and is used to mix the catalyst with the waste oil.

[0009] Preferably, the cleaning assembly includes a movable column movably installed on the front and rear sides of the base plate, two spring telescopic rods are fixedly installed on the outer side of the movable column, one end of the two spring telescopic rods is fixedly installed with a movable cylinder, two notches and two oil inlets are provided on the right side of the reactor body, two fixed boxes are fixedly installed on the right side of the reactor body, and support grooves are provided on the front and rear sides of the inner cavities of the two fixed boxes.

[0010] Preferably, one end of the limiting rod away from the two filter frames movably passes through the interior of the limiting groove and extends to the outside of the reactor body.

[0011] Preferably, the right sides of the two filter frames are movably passed through the interior of the reactor body and extend to the right side of the reactor body, and the movable cylinder is movably installed on the outside of the limiting rod.

[0012] Preferably, the stirring assembly includes connecting plates fixedly installed on the front side, rear side, left and right sides of the inner cavity of the reactor body, a baffle fixedly installed on one side of the connecting plate, a fixing frame fixedly installed on the bottom surface of the baffle, a driving motor fixedly installed on the right side of the reactor body, a driven bevel gear shaft movably installed inside the fixing frame, a driving bevel gear shaft movably installed inside the reactor body, a stirring shaft rod movably installed on the bottom surface of the fixing frame, a valve pipe and a feeding pipe fixedly installed on the left side of the reactor body, and a refueling pipe fixedly installed on the top surface of the reactor body.

[0013] Preferably, the right end of the active bevel gear shaft movably passes through the interior of the reactor body and is fixedly installed at the output end of the drive motor, the left end of the active bevel gear shaft movably passes through the right side of the fixed frame and engages with the outer side of the driven bevel gear shaft, the top end of the stirring shaft movably passes through the bottom surface of the fixed frame and is fixedly installed at the bottom end of the driven bevel gear shaft, the top end of the driven bevel gear shaft movably installed on the top surface of the inner cavity of the fixed frame, and the bottom end of the stirring shaft movably installed on the bottom surface of the inner cavity of the reactor body.

[0014] Beneficial effects

[0015] The utility model provides a novel continuous stirred tank reactor for biodiesel production. Compared with the existing technology, it has the following advantages:

[0016] (1) The novel continuous stirred tank reactor used for biodiesel production is convenient for cleaning the filter residue filtered by the filter frame by means of the provided limit rod and the spring telescopic rod. During cleaning, the user pulls the limit rod to push the lower filter frame to the right. At this time, the limit rod will allow the upper filter frame to be inserted into the interior of the reactor body through the slot through the spring telescopic rod, so as to facilitate subsequent filtration. At this time, the lower filter frame will pass through the slot and enter the interior of the fixed box. At this time, the filter residue filtered by the filter frame can be pressed to squeeze out the remaining waste oil. Then the waste oil will flow into the interior of the reactor body through the oil inlet. Then the filter residue filtered by the lower filter frame can be cleaned. The filter frame can be cleaned comprehensively to avoid the filter plate being blocked and affecting the normal oil discharge process of the waste oil, thereby improving production efficiency.

[0017] (2) The novel continuous stirred tank reactor used for biodiesel production can stir and mix waste oil and catalyst by means of the stirring shaft and the active bevel gear shaft. When in use, waste oil is added to the interior of the reactor body through the filling pipe, and then the catalyst is added to the interior of the reactor body through the feeding pipe. Then the driving motor is started to drive the active bevel gear shaft to rotate the driven bevel gear shaft, and then the driven bevel gear shaft will drive the stirring shaft to rotate to stir and mix the waste oil and catalyst, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional appearance of the utility model;

[0019] Figure 2 This is a front sectional three-dimensional appearance schematic diagram of the present invention;

[0020] Figure 3 For the utility model Figure 2 A in the middle is an enlarged schematic diagram of the appearance;

[0021] Figure 4 This is a schematic top view of the three-dimensional appearance of the present invention.

[0022] In the figure: 1-bottom plate, 2-reaction mechanism, 21-filter mechanism, 211-filter frame, 212-oil inlet, 213-notch, 214-fixed box, 215-support groove, 216-limit rod, 217-spring telescopic rod, 218-limit groove, 219-movable column, 2110-movable cylinder, 22-stirring assembly, 221-valve pipe, 222-feeding pipe, 223-stirring shaft, 224-active bevel gear shaft, 225-blocking plate, 226-connecting plate, 227-fuel pipe, 228-drive motor, 229-driven bevel gear shaft, 2210-fixed frame, 3-reactor body. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See Figure 1-Figure 4 , this utility model provides two technical solutions:

[0025] The first embodiment is a novel continuous stirred tank reactor for biodiesel production, comprising a bottom plate 1, a reactor body 3 fixedly mounted on the top surface of the bottom plate 1, and a reaction mechanism 2 disposed inside the reactor body 3 for mixing and stirring the filtered waste oil with a catalyst. The reaction mechanism 2 comprises:

[0026] The filter mechanism 21 is provided inside the reactor body 3 and is used to filter the residue in the waste oil. The filter mechanism 21 includes two filter frames 211 movably mounted inside the base plate 1. Two limiting grooves 218 are provided on the front and rear sides of the reactor body 3. Limit rods 216 are fixedly installed on the front and rear sides of the two filter frames 211. A cleaning assembly is provided on the outside of the base plate 1 to facilitate cleaning of the residue filtered by the two filter frames 211.

[0027] The stirring assembly 22 is arranged inside the bottom plate 1 for mixing the catalyst with the waste oil. The cleaning assembly includes a movable column 219 movably mounted on the front and rear sides of the bottom plate 1. Two spring telescopic rods 217 are fixedly mounted on the outside of the movable column 219, and the two spring telescopic rods 217 are installed at an angle. One end of the two spring telescopic rods 217 is fixedly mounted with a movable cylinder 2110. Two notches 213 and two oil inlets 212 are provided on the right side of the reactor body 3. Two fixed boxes 214 are fixedly mounted on the right side of the reactor body 3, and the bottom surfaces of the inner cavities of the two fixed boxes 214 are inclined. The two fixed boxes 214 are fixed to the right side of the reactor body 3. Support grooves 215 are provided on the front and back sides of the inner cavity of the box 214, and the two filter frames 211 are adapted to the size specifications of the support grooves 215. The limiting rod 216 is movable away from one end of the two filter frames 211 to pass through the interior of the limiting groove 218 and extend to the outside of the reactor body 3. The right sides of the two filter frames 211 are movable to pass through the interior of the reactor body 3 and extend to the right side of the reactor body 3. The movable cylinder 2110 is movably installed on the outside of the limiting rod 216, and the two spring telescopic rods 217 can push the limiting rod 216 through the movable cylinder 2110 to fix the positions of the two filter frames 211.

[0028] The limit rod 216 and the spring telescopic rod 217 are provided to facilitate cleaning of the filter residue filtered by the filter frame 211. During cleaning, the user pulls the limit rod 216 to push the lower filter frame 211 to the right. At this time, the limit rod 216 will use the spring telescopic rod 217 to make the upper filter frame 211 pass through the slot 213 and insert into the interior of the reactor body 3 for subsequent filtration. At this time, the lower filter frame 211 will pass through the slot 213 and enter the interior of the fixed box 214. At this time, the filter residue filtered by the filter frame 211 can be pressed to squeeze out the remaining waste oil, and then the waste oil will flow into the interior of the reactor body 3 through the oil inlet 212. Then the filter residue filtered by the lower filter frame 211 can be cleaned, and the filter frame 211 can be fully cleaned to avoid clogging of the filter plate and affecting the normal oil discharge process of the waste oil, thereby improving production efficiency.

[0029] The second embodiment is different from the first embodiment in that: the stirring assembly 22 includes a connecting plate 226 fixedly installed on the front side, rear side and left and right sides of the inner cavity of the reactor body 3, a baffle 225 fixedly installed on one side of the connecting plate 226, a fixing frame 2210 fixedly installed on the bottom surface of the baffle 225, a driving motor 228 fixedly installed on the right side of the reactor body 3, a driven bevel gear shaft 229 movably installed inside the fixing frame 2210, an active bevel gear shaft 224 movably installed inside the reactor body 3, a stirring shaft rod 223 movably installed on the bottom surface of the fixing frame 2210, a valve pipe 221 and a feeding pipe 222 fixedly installed on the left side of the reactor body 3, a refueling pipe 227 fixedly installed on the top surface of the reactor body 3, an active bevel gear shaft 228 fixedly installed on the right side of the reactor body 3 The right end of the gear shaft 224 movably passes through the interior of the reactor body 3 and is fixedly installed at the output end of the drive motor 228. The left end of the active bevel gear shaft 224 movably passes through the right side of the fixed frame 2210 and engages with the outer side of the driven bevel gear shaft 229. The top end of the stirring shaft 223 movably passes through the bottom surface of the fixed frame 2210 and is fixedly installed at the bottom end of the driven bevel gear shaft 229. The top end of the driven bevel gear shaft 229 movably installed on the top surface of the inner cavity of the fixed frame 2210, and the bottom end of the stirring shaft 223 movably installed on the bottom surface of the inner cavity of the reactor body 3. Starting the drive motor 228 can drive the active bevel gear shaft 224 to rotate the driven bevel gear shaft 229, and then the driven bevel gear shaft 229 will drive the stirring shaft 223 to rotate to stir and mix the waste oil and the catalyst.

[0030] The waste oil and the catalyst can be stirred and mixed by the provided stirring shaft 223 and the active bevel gear shaft 224. When in use, the waste oil is added to the interior of the reactor body 3 through the filling pipe 227. At this time, the catalyst is added to the interior of the reactor body 3 through the feeding pipe 222. Then, the driving motor 228 is started to drive the active bevel gear shaft 224 to rotate the driven bevel gear shaft 229. Then, the driven bevel gear shaft 229 will drive the stirring shaft 223 to rotate to stir and mix the waste oil and the catalyst, which has good practicality.

[0031] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0032] When in use, the user connects the device to the power supply, and then adds waste oil to the interior of the reactor body 3 through the filling pipe 227. Then the valve pipe 221 will filter out the filter residue in the waste oil. At this time, the catalyst is added to the interior of the reactor body 3 through the feeding pipe 222. Then the driving motor 228 is started to drive the active bevel gear shaft 224 to rotate the driven bevel gear shaft 229. Then the driven bevel gear shaft 229 will drive the stirring shaft 223 to rotate to stir and mix the waste oil and the catalyst. When it is necessary to clean the filter frame 211, pull the limit rod 216 Push the lower filter frame 211 to the right. At this time, the limit rod 216 will use the spring telescopic rod 217 to allow the upper filter frame 211 to pass through the slot 213 and enter the interior of the reactor body 3 to facilitate subsequent filtration. At this time, the lower filter frame 211 will pass through the slot 213 and enter the interior of the fixed box 214. At this time, the filter residue filtered by the filter frame 211 can be pressed to squeeze out the remaining waste oil. Then the waste oil will flow into the interior of the reactor body 3 through the oil inlet 212, and then the filter residue filtered by the lower filter frame 211 can be cleaned.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel continuous stirred tank reactor for biodiesel production, comprising a bottom plate (1), characterized in that: A reactor body (3) is fixedly mounted on the top surface of the bottom plate (1). A reaction mechanism (2) is provided inside the reactor body (3) for mixing and stirring the filtered waste oil with the catalyst. The reaction mechanism (2) comprises: A filtering mechanism (21) is arranged inside the reactor body (3) and is used to filter filter residue in the waste oil. The filtering mechanism (21) comprises two filter frames (211) movably mounted inside the bottom plate (1). Two limiting grooves (218) are provided on the front and rear sides of the reactor body (3). Limiting rods (216) are fixedly mounted on the front and rear sides of the two filter frames (211). A cleaning assembly is provided on the outside of the bottom plate (1) to facilitate cleaning of the filter residue filtered by the two filter frames (211). A stirring assembly (22) is arranged inside the bottom plate (1) and is used to mix the catalyst with the waste oil.

2. The novel continuous stirred tank reactor for biodiesel production according to claim 1, characterized in that: The cleaning assembly comprises a movable column (219) movably mounted on the front and rear sides of the base plate (1); two spring telescopic rods (217) are fixedly mounted on the outer side of the movable column (219); one end of each of the two spring telescopic rods (217) is fixedly mounted with a movable cylinder (2110); two notches (213) and two oil inlets (212) are provided on the right side of the reactor body (3); two fixed boxes (214) are fixedly mounted on the right side of the reactor body (3); and support grooves (215) are provided on the front and rear sides of the inner cavities of the two fixed boxes (214).

3. The novel continuous stirred tank reactor for biodiesel production according to claim 1, characterized in that: One end of the limiting rod (216) away from the two filter frames (211) is movable through the interior of the limiting groove (218) and extends to the outside of the reactor body (3).

4. The novel continuous stirred tank reactor for biodiesel production according to claim 2, characterized in that: The right sides of the two filter frames (211) are both movable and penetrate the interior of the reactor body (3) and extend to the right side of the reactor body (3), and the movable cylinder (2110) is movably mounted on the outside of the limiting rod (216).

5. The novel continuous stirred tank reactor for biodiesel production according to claim 1, characterized in that: The stirring assembly (22) comprises a connecting plate (226) fixedly mounted on the front side, rear side, left and right sides of the inner cavity of the reactor body (3); a baffle (225) fixedly mounted on one side of the connecting plate (226); a fixing frame (2210) fixedly mounted on the bottom surface of the baffle (225); a driving motor (228) fixedly mounted on the right side of the reactor body (3); a driven bevel gear shaft (229) movably mounted inside the fixing frame (2210); a driving bevel gear shaft (224) movably mounted inside the reactor body (3); a stirring shaft (223) movably mounted on the bottom surface of the fixing frame (2210); a valve pipe (221) and a feeding pipe (222) fixedly mounted on the left side of the reactor body (3); and a refueling pipe (227) fixedly mounted on the top surface of the reactor body (3).

6. The novel continuous stirred tank reactor for biodiesel production according to claim 5, characterized in that: The right end of the active bevel gear shaft (224) is movable through the interior of the reactor body (3) and is fixedly mounted on the output end of the drive motor (228); the left end of the active bevel gear shaft (224) is movable through the right side of the fixed frame (2210) and is engaged with the outside of the driven bevel gear shaft (229); the top end of the stirring shaft (223) is movable through the bottom surface of the fixed frame (2210) and is fixedly mounted on the bottom end of the driven bevel gear shaft (229); the top end of the driven bevel gear shaft (229) is movable mounted on the top surface of the inner cavity of the fixed frame (2210); and the bottom end of the stirring shaft (223) is movable mounted on the bottom surface of the inner cavity of the reactor body (3).

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